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1171 INORGASIC CHEJITSTRT. Mineralogical Chemistry. Alrcdys.is of cc Rod CIJ~soirx Ocli,*eoIis Dcposits fj’oiiL tlLc Xirit rcZ E$wi.izg.s of the Teplitx BusiIt. By J. STIsc+r,.* I. Qnartz-porphyry from Teplitz sp. gr. 2.567. 11. Ochreous deposit from the Hiigelquelle of the lien-bath at Schemu near Teplitz sp. gi-.2.73. 111. Dark reddish-brown ochreozls deposit from the Steinbad spriiig at Teplitz. IT. Calcareous deposit from the Hiigelqnelle of tlic new bath at Xchmnau sp. gr. 2.698. Deut. Chem. Gcs. Ber. ir 454-456; Wicn. Alind. Ber. lsiii [2J 325-323- 1172 ABSTRACTS OF CHEJITCAL PAPERS. Silica .......... Carbonic anliy-Alumina ........ dride ......} 75 '4'7 15-07 .. .. 34-84 1 .. 9.44 .. 1-06 1 I. .85 65 '61 .. 3 -18 .. 41 .50 .25 16 .... Ferric oxidc ..,. 11a ii g a n o u s oxide ...... Lime .......... Magnesia.. ...... Potash. ......... Soda .......... Lithia .......... 1 3*8G a. *95 -63 1.85 *51 .. 2 *24 5-34 43*'77 a. .. .. .. -42 I. trace }traces a. .. i I i' 20 -20 trace *. 1*30 .. .. .. tiwes .. 3-49 *. 52 -50 trace i +5 trace .. .. .. .. .. .. a. Water, ........ 1-43 .-3-11 .. JI- $12 .. 1-29 L- .. ..- 99 *'77 100.22 jI 99 .78 99 '94 Oclireous deposits. Calcareous dcpo-it 11. 111. IV. Quartz _____ Constituents. Porphyry. I. Insoluble. Soluble Insohtblc. in HC1. On the Coquosition of Ejidote. By A. KENNGOTT.* INthis paper the author discusses all the published analyses of epidote and comes to the conclusion that with the exception of a few of doubt- ful character they may all be included in the general formula- CaO.H,O + 3(Ca0.Si02 + Al2O3.SiO2) the alumina being more or less replaced by ferric oxide and the lime to a small extent by magnesia; the presence of the magnesia appears however to be due in many cases at least to foreign minerals im-bedded in the epidote.In some of the analyses the iron is calculated partly as ferrous oxide ; this however Keniigott reckons also as ferric oxide and regards it as taking the place of an equivaleiit quantity of alumina. The least ferruginous epidotes are those from Switzerland and the Formazza valley; in these the ratio of alumina to ferric oxide A1,0 Fe,O 5 :1. In the epidotes from Bourg d'Oisans in Dauphiny Trsversella in Piedmont Arendal in Norway and Penig in Saxoriy ih(i ratio is A1,03 Fe203::2 :1.H. W. * Jahrbuch fur Mineralogic 18'71 449-459. NINERALOGICAL CHEMISTRY. 1173 THEauthor gives this name to native molybdic molybdate Moo2.431oo3 occurring at Bleiberg in Carinthia as a bluish-black to black mostly earthy or cryptocrystalline deposit between groups of crystals of barium sulphate. It is soluble in water and acquires a deeper blue colour by exposure to the air. When purified from gypsum and other admixtures by repeated solution in water and evaporation it dissolves in water with a splendid dark blue colour and the solution treated with hydrogen sulphide deposits a blue precipitate dhout losing much of its own colour. The author attributes its formation to the action of sulphuric acid on native lead molybdate (wulfenite) ; many samples of the native mineral indeed were found to contain free sul- phuric acid together with the sulphates of barium and calcium.H. W. Hydmtecl h”j’c1iunz Chloride froin Etncc. By. A. KESSGOTT.? SILVESTRI in 1870 analysed a mixture of chloride and ’ carbonate of sodium occurring in the Etna lavas with the following results :-NaCl. KC1. Na2C03. Na2S04. H20. 1 ,‘..I. I ,. 50.19 0.50 11.12 1.13 37.06 = 100 2 ..,,,...,. 63.02 0.27 6 -49 trace 30.22 = 100 3 ..,.,...,. 76.01 0.03 2.11 0.75 21.10 = loo Regarding the carbonate as monohydrated (soda) and the sulphate as decahydrated (mirabilite) the composition of these mixtures may be represented as follows :-Na2S03 + HlO. NalS04 +,-.1OHgO.KaCl. KC1. If2(). c \r A 1....,. /11-12 18.88 1-13 1-43 ‘50.19 0.50 16.75 ’ 2...... 6-49 11-02 trace trace 63 *02 0 ’27 19 a20 3,,.... 2.11 3.58 0 *75 0.95 76.01 0.03 16-57 Analysis 1 gives 8.58 NaC1 0.07 KC1 (= 8.65) and 9.31 H,O ; analysis 2 gives 10.77 NaCl 0.04 KCl(= lO*Sl) and 10.67 H,O both agreeing with the formula NaCl.H,O. In the third analysis the quantity of water is below that required by the ratio 1 1,whence it may be inferred that the hydrate NaCl.H,O was mixed with a certain quantity of anhydrous sodium chloride. 16 is worthy of remark that the sodium chloride exists in the fumarole vapour in the form of hydrate and is deposited as such ; and that the * Jahrbuch fur Minerdogie 1871,566. t. Jahrbnch fiir Mineralogie 1871 500.1174 ABSTRACTS OF CHEJI1C;II; PAPERS. anliydrons chloride when it occuw appears to result from the decoiii-pmiiiion of this hpelrFtte as inclicatecl 1)~-the third analysis. H. TT. I~~~?c.~'cEII 1 c. t L ,,z iiirt ii 1 H~/pc~stl~eiBy Bc H A R 1) (3 31.4 3.* THEanihnr has sliown by liilcroscopicd examination tli at tlie iriclescent laminx enclc~scclin tlie hypersthene of St. Paul's Is1an:l belong to the rlionibic s-j-ste1:i and exhibit the fornis and combinstions of Brookiie. He ~ibofinds b~-cliemicd acnlysis that this mineral contaiiis c7*-4t; p.c. titanic acid. He supposes that the cqstalline lainin= of this snb-staiice wxc suspeiideci in the holntion from which tlie hyperstlielie was deposited aid arranged thenisels-es in accorciance with tho direction of the laps of :lie li~pwstlicm and with the relatioils of c!asticitF requiyeci 1,y its cr-j-stnllisaticm.Siiiiilar iriclescellt lainiim are found eiiibcciclecl (t ogetlier i~ithotlier crystals) in Inljmcloriie and Bchrauf (Jal~I4.J. Xu 187I 743) finds that thy are of two kincls distingnisheci fi*om one ailother by their form and posiri(ii?. The laniiiice of the one syhtem ham foi> the most part a rectang;.nlar 013 often qu:wc traiisversc section and :ic p;lmllel to n hj*pothetic~l labradoyitc face 00 P 22 while those of iho second s-j-stem exhibit clongatcci znc! mostly irregular fornis c2:icl lie parallel to R IlypotE-ctic::l labradorite face 00 P' AT-.The arrangcment of the two sJ-stcnis of' lrimiiix is inoreover a regular conseynence of the ~ecoii~lq-cleavage of tliv labradorite resulting from ihe other inibddecl crystal>.H. K. TIII-!resin OCCLI~S in the coal-beds of tlie Soniiberg near Guttaring in Carinthia. It has a fatty lustre a brown colonr with gmmet-red lustre wine-Tellow by tranmittsd liglit especially in splinters ancl a io light-l~o~11 omige-yellow streak. It is brittle and nlal-be scratched w5.iih the nail. $11. gi.. = l*O'iC. When heated in the ail' it gil-es off white ~~apo~l~s !laving an aromatic odour and burns m-it11 a &p yellom smoky flanie lvithout leaving any residue. At 96" it bsgiiis to melt to a viscid brown-red mass which throws up bubbles 1W0 and emits ivhite Trapours from 215" to 225" at which latter temperature the mass becomes mobile assumes a dark purple-red colonr and emits a fetid gaseons mixture but does not gi-re off sncciiiic zcid.T/T.'hen fused with alkaline carbonates it does not exhibit * Jnhrbuch fiir Miiieralogie 1871 501. .F Jniirbnch fiir Minerc~logIe,1571 561-566. MINERN;OQICAL CHEIIISTRY. 1175 N~J-trace bf snlphnr although that eleiveiit is present in the coal in the iiiiinecliate neighbourhoocl of the resin. Rosthoriiite is ilot altered by dilntc nitric acid by pottlsh-ley or bj-alcohol either in the cold or on boiling ; in warm ether liowe~er it dissolves partially forming a tui*b:d 77 ine-yellow solntion and 1ea:Ting a whitc tnmcfiecl residue. In colcl tnrpentine-oil it reinains nnnltered but litit turpeatine-oil dis-solves the pure resin almost cntirel1 leaving only a siiiall quantitj of dark-co!onrecl matter (enclosed particles of coal).It swells slightlx in cold aid ciissolves pnrtinllj- in hot petrolenm. In bciizol it dis- solves at oxlinnry temperatures forming a cleni. ciark wine-yellow liynicl. Rosthoriiite in its physical characters bcars consiclemble rcscmblancc to janlingitc and pyroretinite but in chemical composition it npprmches more nearly to enosmite mid still more to the fossil resin of Giroiia near Bu.caraniangn in Nex Grniiacla as will be seen from die fslloTTiiig coiiipnrison :-Ennsiiiit2 is clistingnisheci from rosthornite bx its stroiig ocionr of camp’mi. and rosemaq- by its easy and complete soln?):li:y in alcohol ancl dhw aiid by the cleep ycllow coloiu.which it imptrts to potash-ley. &c. Pj-1-oretinite also differs from rosthornitc in its beiisT-ionr to solvent; and moreover contains 10 p. c. oxygen. Gironn or Bncara-iiiangn rcsiii 11-liicl occ~irsin auriferous porphj-r;tic allucians reseiiibles rosthornite in its beliavionr to alcohol and ctlier lsnt is transparent palc-yellow and t-ery in~iell like amber in its physical characters. Rosthornite thereforc cannot be included eitLer ph~sically 01-‘chemically in the snccinite group or in that of retiiiite (&Us4 C. ; 10.7 H ; 8.7 O.) neither on chemical gronnds can it be referred to the isolite gronp to which jauliugite belongs. It appex~ratl:ci* to form a tppp of solid resins rich in carbon and poor in ox~-ga?. H. W. ABSTRACTS OF CHEJIICAL PAPERS.1176 Beyrichits and XiZlei*ite. By K. T.LIEBE.* BEYRICHITE is a native sulphide of nickel lately obtained from a mine in the Westerv-ald. It forms radiate groups of macled crystals made up of prisms about 70 mm. long and 8 mm. thick some of which have a helico'idal curvature. The prismatic groups have mostly a single end- face inclined at 81"to the vertical axis. A second bnt somewhat rarely occurring end-face forms with the first a dome-like combination with an angle of 144",corresponding to the angle of the terminal edges; of Xlillerite. Clearage moclcrately distinct parallel to the first men-tioned end-face. The mineral belongs to the family of the glances rather than to that of the pyrites. It is very tough but moderately impressionable to the point of a knife.Hardness about 3.2 to 3.3. Sp. gr. 4.7. Colour red-grey with faint metallic lustre stronger on the cleavage faces. When heated in a tube it decrepitates and at a dull red heat gives off smlphur with. out fusion and is thereby converted into a pyrites having a dark pinchbeck-brown tarnish on the surface speiss-yellow to brass yellow internally harder and more brittle than the original mineral. On charcoal beyrichite melts easily and quietly with evolution of sul-phurous acid to a strongly magnetic bead having a brass-yellow colour internally. It gives the nickel reaction with borax and phos- phorus-salt and dissolves easily in hydrochloric acid especially on addition of nitric acid forming an emerald-green solution.Pure speci- mens yield by aiialpsis 42.8G p. e. sulphur 2.70 iron and 54.23 nickel. If the iron be supposed to replace an equivalent quantity of nickel these numbers lead to the formula N&S or 3NiS.2NiS2 (calc. 43.21 S. and 56.79 Ni). The presence of the iron may however lie due to the admixture of iron pyrites and in that case the composition of beyrichite may be represented by the formula 2NiS.NiS2. Beyrichite is accompanied by a pyrites having a deep brass-yellow to speiss-yellow colour often variegated on the surface which coats the beyrichite ciystals in extremely thin lamins or more rarely in dendritic or thin crystalhe forms often penetrating them in the direction of the cleavage-planes in the form of sharply separated lamelle sonietimes to the complete displacement of the beyrichite.This mineral is Millerite or capillary p-j-rites having a sp. gr. of 5.7 to 5.9 hardness between 3.6 and 3.8 and containing 35.27 p. c. S 1.16 Fe and 63.41 Ni agree- ing therefore with the forivula N.S. Beyrichite as appears from the facility n-ith which it gives off sulphur when heated is very easily converted into NUerite a circumstnnce which may perhaps account for the great variations in the statements Jahrhnch fiir Mineralogic 1871 840. MINERALOGlCAL CHEJIISTRY. 1177 relating to the specific gravity and other properties of the latter. Liebe finds the specific gravity of millerite to vary between 5.7 and 5.9 (Dana gives 5-25-5.65) ; a specimen from the Joachimsthal was found by Kenngott to have the sp.gr. 4.601 w-hich is not far from that of beyrichite. These diversities may be due either to the presence of beyrichite enclosed in the capillary pyrites or to the different condi- tions under which the transformation of beyrichite into millerite takes place. Beyrichitc is in fact converted into Millerite by taking up nickel from the vein-water and the more compact and less porous the structure of the beyrichite the denser and heavier mill be the Milleritc forniecl from it. H. W. Jfi~~emlogicnl AToticcs.* Horaviii. By H. TVI E sE R.-The syeaite of B'dspcil. from E~CLILSIXI ii~ Blansko contains a decomposed plagioclase in which distinct crystals of orthoclase are perceptible. The analysis of this felspar gave- Si02.P.,05.Al,O,. Pe,Os. BeO. NnO. CaO. MgO. K20. Na20. II,O. 45.49 trace 22.86 1.69 2.04 1.5'6 21.81 trace trace 3.05 1.84 =100.57 -Plagioclase is therefore a calcio-sodic felspar Anaouxts of Bnr*;.zcnz aid iIIangci,i2c.sc in certct,ilb 3Iiizei.itls. By L. RAAB.-The author concludes from the examination of a consider-able number of minerals that very few of the silicates at present known contain barium ;this element is hon-eT-er present in the stilbite of Iceland. Four chromites were found to contain manganese the proportion of which in the Siberian and Norwegian chromites is greater than in those from the Ural and from Texas. Five magnetites mere found to contain from 1-08to 1.53 p. c. manganese. As fluorine forms a volatile compound with iron the decomposition of minerals with hydroflnoric acid appears to be well adapted for the estimation of manganese bnt may lead to errors in the estimation of the iron and silica.Ancdysis of $$loresce?zces $-om Libgo cZ'Alzscclito. By H. wi ESER.-These efflorescences which form a coating on the mud were found to have the follon-ing composition :-Insoluble in Kater Soluble in water Water 1.99. 81-21 18.66. 7-I \ n FeO. Al,O,. SO,. FeO. A1203. Na-0. at 163". ignition. 0-68 1.31 53.00 9.55 16.16 2.50 4-74 13.92 = 101.86 3 Jahrbuch fur Mineralogie 1871 51'7,521 and 637-642. 1178 ABSTRACTS OF CHE1\IICA\L P,IPERS. 1’; osphoric acid 1w.s also been fofuuiici by Schnabel in the siliceous {.t lainiiie of C‘uidlas near Smtaiicicr in Spain.-lJoitiuil;te D ueiv X~,~etd i9Iiecics. By F. I-. KOBELL.-This iiiineml fi-om the Monte 31011zoni in the Fassa Valler near thc! small l:ike of Le Sellc is coiiip;xct and occurs in fragments. Hardness = Lo; sp. gr. = 3. Yracture 5plintery to imperfectly concho’ichl. Colour light green like that of iiiany green hornstones. Slightly translucent on the edges. 31e!t3 easily before the blowpipe to a shining greyish-greeii glass. Gives off n little water when heated in ;t tube. Insoluble in hydrochloric and sulphuric acid but dissolves in strong :Iqueons phosphoric acid. Analysis gave- isding to the foriiiula 18(R”0.Si02)+ 4A1,0,.9Si02. The mineral \ihen exanlined in a thin slice under the microscope sliows no signs of mixed constitution and may therefore be regarded as a distinct ipecies.L Abaormrd C‘r*ysfab of Xoclizmh Chloride. By F. v. KOBE the author has carefully re-examined the crystals of rock salt from Berch- tesgaden which exhibit a remarkable partial development of faces resembling a rhombohedra1 combination in order to discover whether this abnormal development ia due to the presence of foreign sub-stances; but he found nothing but a small trace of potassium chloride. JIINERALOGICAL CHEMISTRY. 1179 1 i!Al. UlZ,,ii(ii,Lit ~f,*~ii~ X;irLeithcr~//,'i~ C',/,*,',/tliitt. EJ-X. 17. LILL.-Tji's mineral which occiws embedded in n YO& coiisistiiig of talco-c c!:> y-clnte and cryshlline dolomite exhibits mlieii crxstnllised the winbiilation rQm .XQ ;very distinct cnbic clearage ; sp.gr. = 6.63 ; Iixi-wliitc to steel-grey colour. Analysis gave 1-5-28 p. c. sulphnr ijG.07 itiitimonx 27.50 nickel and 0.94 arsenic (=99.79). A sniall part of the antimony is i*eplacedby arsenic. The miiierol is also found at the Loling .Hiittenberger Erzberg and Waldenstein in Carinthia. ~t.lt~l~e,,iti~.l~.,J,ia Gr'//iizc ,lent*Tli@uiL iiz Sfyia. I37J. NIEDZWICDZKI. -This specks described by G. Tschermak (Jci~i1+lc~7i. occu~s 1870 ~!D) in flat e!oiigatecI nodules in a black-grey miid inqxepated with car- bonaceous particlcs. Hardness = 2 ; specific gravity = 1-03:! ; frac-ture flat concho'idal ; coloui- yellowish to reddish-browt-n ; lustre fatty. Analjsi- gave 819p. c. cx$on 10.9 hydrogen 4.1 snlplinr and 3.1 oxygen (=%I) agrceing with that of the trinkwite of Caqxino.Ocm1-1.t' tire oj Webbterite view Brigiitoii . By S.PE 11 c E vA L .-Webs t erite (alumiiiite) forms a layer in the chalk about 3 feet thick and probably filling a cleft ; above it is a ferruginons clay with nodules of limonite flint and isolated crystals of gypsum. The mcbsterite is of very variable constitntion sometimes in the form of the finest white ponder appear- ing under the microscope as an aggregate of extremely fine crystals sometimes iii compact nodular masses resembling meerschaum. I<kseia;te fl'o?iz the Hidlstattet. 8cdxbei.g. By H. TVI E SER.-T1iiS kieserite is of distinctly crystalline texture yellow colour sp. gr. 2.56451 and contains- so3. MgO. FeO. Na20. c1. 1120. 57.87 23-89 0.05 0.05 0.06 13.24 = 100.16 Identity of Aite'Clysteylte with HypemtlLe.ize.By G. v o31 RATH.-The crystals of amblystegite (Jc~hi.Ezcc7i.1870 345) agree very nearly Kith those of the hypersthene or bronzite determined by van Lang in the meteoi-hs of Breitenbach the face $P& of amblystegite being alone wanting in the more numerously faced hypersthene of Breitenbach. By the discovery of hypersthene crystals in the pallasite of Breitenbach and in the sanidin-bombs of Lake Laach the number of silicates common to meteorites and to terrestrial minerals is increased to five. H. W. 1180 ABSTRACTS OF CHEMICAL PAPERS. By F. SANDBERGER.* the Lnzo qf the Trigoizal By A. BREZIBA.? Cwpf~t7lop~tph icnl Notices.$ OILAizhydrite. By F.HESSESBERG.-OI~ 2Cfeteotic A*o,zfi.011~ the Desed of Atcicnrna (1870). By E. LUDWIG.§ THE fragments of this meteoric iron submitted to the author were polished on the surface perfectly free from oxide soluble without residue in warm nitric acid. One of the larger fragments was found to contain iron cobalt nickel copper (a trace) and phosphorus ; a smaller frag- ment contained in addition a veiy small quantity of sulphur. Quan-titative analysis gave as a mean result- Fe. Ni. co. cu. P. 91*52 7.14 0.41 trace 0.45 = 99.53 H. W. s Notice of tLe JIeteoric StolLe of fJear*smoizt Xaine. By CHABLE u.SHEPARD.[[ IMMEDIATELY after the fall of this large meteoric stone the author ob-tained possession of a portion of it weighing about tvo pounds.The original mass would appear to have presented an oval sub-conical out- line the exterior being covered with zt thick crust of at least one-six- teenth of an inch in thickness. Its colonr is bluish-white and remark- ably uniform but is slightly stained in one or two places with peroxide of iron. More than one-half of the meteorite is composed of small rounded translucent grains vitreous in lustre and rarely exceeding a * Jalirbucli fur Mineralogic 1871 642. .F Ibid. 643. $ Ibid. 510-51'7. 3 Wien. Akad. Ber. lxiii [2],323. (1 Am. J. of hi. [3] 133-136 and 200. iVINERALOGICAL CHEJlISTRT. 1181 mustard-seed ixsize. Between these and often partially coating them is a fine-grained white or greyish-white mineral which is supposed to be chladnite ; it constitutes about one-fourth of t?ie stone is without Tisible cia\ stalline structure and rather loosely coherent.BIinute points of bright meteoric iron are very thickly scattered throughout the mass and a few grains of tro'ilite are visible. In one spot only a peculiar blackish substance of small dimensions mas noticed which on being touched with the point of a knife was found to be soft and to leave a bright metallic streak; it mas probably a plumbaginous ag-gregate. In appearance especially in the well marked character of its granules this stone closely resembles the Aussum (France) meteorite of December 1858 while in the thickness and general character of the crust it also corresponds to the celebrated Mauerkirchen stone of 1768.The specimen forming the subject of the present notice was aiialFseecl by Prof. Lawrence Smith with the following results :-Specific graritx 3.701; stony matter 85.38 p. c. ; nickeliferous iron 14.62 p. c. The iron afforded :-Iron 90.02 ; nickel 9-03; cobalt 0.43. The stony portion treated with a mixture of hydrochloric and nitric acids gave :-52*3 p. c. soluble in acid and 47.7 insoluble. Both the solnble and insoluble portions consisted essentially of double silicates of iron and magnesia the soluble part being classed as an olivine while the insoluble was considered to be either bronzite OF eustatite. 'She proximate composition of the stone would then be- Nickelifcrous iron ...................... 14.63 Magnetic pyrites ......................3.06 Olivine.. .............................. 43.04 Bronzite with a little orthoclase and chrome iron ................................ 39.27 J. W. 012 the Ayfesicciz Well of Xoc7Lgfo.i.t. By 31. Roux.* THEwater of this well rises from below the sandstone at a depth of 8.57metres. This is the deepest artesian boring hitherto effected being deeper than that of Grenelle and of Passy by upwards of 150 metrcs. The water flows at the rate of from 2$ to 3 litres per second anti has a mean temperature of about 41". On standing in contact wit11 the air it loses carbonic acid and nitrogen and becomes turbid owing* to the decomposition of the ferrous carbonate which it holds in solu-tion. One litre of the water (sp. gr. 1.0053) contains-Q Compt. rend.lxsiii 910-913. VOL. xxrv. 4ri P; .. .. h .-.. t3 .. ... ............ 0 ..-E::: ............ :::tio .............. ...@B ?I :::@:I .............. ...gJ. ............... :: 2;s .. ................ow ..3::: ........... .-..- +b ..*0.. ......... ...6 ...........::::::::B. ...g.i ::::..............s: ...m .............. ... ..................'j- .::a'..........'..'...' :..2. :: : :::::: P :::P:::::::::::: ::::::cirPo VVP ...-................... rP+ ..................... ................*..*.::+- ORGASIC CHENISTRT. 1183 netic and on passing the lj!ade of a knife over one extremity of the ~od, it acted on the needle and attracted iron filings. T. E. T.

ISSN:0368-1769    

DOI:10.1039/JS8712401171

出版商:RSC    

年代:1871

数据来源: RSC

摘要:

ORGASIC CHENISTRT. 1183 Organic Chemistry. Oia cc Pcuifln hnviilg cb Eigh JIeltiizg Point. By JOHX GALLETLT.* Ix manufacturing paraffin from Boghead cod the final part of the crude oil condenser was found to contain a black tarry matter besides the naplitha This nearly solid matter when boiled TT-ith naphtha yields a mass of a dark-brown colour (not further examined) insoluble in nearly all reagents n-hich dissolves bituminous bodies and a solu-tion which solidifies on cooling aftel. filtration. The cooled mass when pressed in cloths yields the crude hydrocarbon under notice which. can be purified by repeated crystallisation from naphtha. When freed from naphtha by blowing steam through it it presents the ap-pearance' of hard yellow cakes resembling beeswax btit more trans- luceiit.Its melting point is 80". This it attains after the first few ci-ystallisations and it does not become altered after the crystallisation is repeatccl. It thus seems to be separated from the paraffins accom- panying it in the crude oil by a considerable gap. The highest of these after more than a dozen crystallisations of which the last made little alteration had a melting point of 65.5" ; the original material melting at 56". The elementary composition of this paraffin is sensibly the same as that of other paraffins and of ethylene.? Paraffin 80" C. Ethylene. Paraffin 52" C. Carbon ........ 85.2 85.7 85.15 Hydrogen. ,.... 144 143 15.4 It boils at a point not far short of a red heat suffering a partial decortiposition at the same time about one-half being converted into liquid hydrocarbons.By the numbers given in a short table it is shown that the solu- bility of the paraffins in commercial benzol decreases very rapidly as their melting point rises e.g. 100 C.C. benzene at 18' dissolves 133 grms. of paraffin melting at 35" but only 0.1 grm. of that melting at 80". The densities of the paraffins rises*with their melting points. The * Chem. News xxiv 187. + A paraffin = C2?H56contains 8596 per cent carbon.-(?. H. G. 492 1184 ABSTRACTS OF CHEMICAL PAPERS. following numbers were all obtained vith paraffins from Bogliencl coal :-BIeltiiig poiiLt. Specific grivity. 22.0 c. ,8236 3?-0 *8480 40-5 *8520 53.3 *9110 53.3 -9090 58.0 -9243 59.0 9248 80.0 -9400 Picric acid t'oriiis no compound with this pamffin but hot sulphuric acid converts it into a greasg black mass reseinbling drawing cllalk.Chlorine coiiverts it rery rapidly into n black oily mass mliich cleconi-posecl on distillation. Hcnted with nitric acid (sp. gi'. 1*4j,the 80" paraEli is conrertecl in an hour or two chieflx into nitro- conipounds wliicli are readily soluble in caustic alkalies. c. M.G. 011 Iso~7i~zc~7~tl~1~7. By WATsox SXITH. THIS compound isomeric with Lossen's dinaphthyl is obtaincc!. together with 1Lydrogen by passing the rapo~~r of naphtlialene tlirouyli an iron tube lieatecl to bright redness '2C,,H = (CIOH;)? + H?. The iiaphtlideiie collected in the receiver has a dark- brown colo~r md when re-clistilled from a retort aln7a-j-sleares a niinute quaiititj-of liquid boiling at a teinperature above 350" ; and bF repeating tlie d'+ tillation a certain iiumber of times a quantity of this substance- which consists of impure isodiiiaphtli-j-1- may be olotaine cl sufficieiit f 1% farther treatment.It is purified by firbt distilling off' tlie s?di quantity of naphthalene which it contains and then distilling owr the body itself the temperature rapidly rising from 220' below ~~-1i;cli the naphthalene conies over to above 360". A minute quantity of pitch is to be left in the retort. The solid hard yellowish suhstaiice is now crushed in a mortar with shale-spirit and made into a thin homogeneous paste then washed repeatedly on a filter with tlie spirii drained pressed in blotting-paper and dried at a temperature fn1l-y sufficient to vo'atilise the spirit.By this washing it is freed froiii n small quantity of a resinous body and from a lemon-yellow substance. These wash-liquoi s all exhibit blue fluorescence. The dried substaiicc ORGXSIC CHEJIISTRY. 1185 is fiiially sublimed at as low a temperature as pohbible and is theii obt2inecl as a ficiiitly el lo wish-white inoclorous powder. This sdj-limate by very careful and slow sublimation mar also be obtained in delicate little plnics. When possessing the faintest >-ellow tint it imparts a beautiful and delicate-blue fluorescence to any solvent used. When 2-1-cryhigh temperature lias been used (a white heat) the substance obtained is alimys more largely contaminated with the resiiious aiicl lemon-yellow bodies and on careful scblimation the first portions subliming are almost colourless but the further thc sub-limation is carried OD the deeper is the rellow tint of tlie product.A smn!l quantity of the latter portions of a s~~blimatioii-procl~ict of a sulphur-yellow colour when wai-med with concentratecl sulpliuric acid yicicls a very fine purple solution on further heating passing into an indigo and then to a dull green tint. This reaction is mentioned by Li;bcrinciin as characteristic of c7i )yserrc ; it is probable therefore tlint chryseiie is present in this yellow substance. With a quantity of the purc re-s-LMinieci substance the following reslilts \rere obtained :-So red GI' bromi cornpouiid is formed with a benzol-solution of picric acid.The more thoronghly the snbstance is purified tlie less is the fluorescenee imparted to solvents. The sdlir/i1,ig yoi;7~tof isodinaphthyl lies considerably bclow its boiling point. Treated with two parts of potassium bichromate and sul-pharic acid it is osidised at once with extreme energy. From the oxidation-pt?'oduct obtained no colour nor any substance bearing any resemblance to alizarin could be obtained. Cold sulpliuric acid is without action on this body but when heated tlie acid slowly dis- solves it mlicn if it be quite pure a very faint purplish-tinted soln-tion is obtained; if however it contains a trace of the yellow body mentioned before n violet or purple solution is formed becoming green niid then reddish-brown on fwther heating.Hot nitric acid oxiclises it with liberation of nitrous flnnes and forming in the hot fluid heavy oily drops ; these on further heating dissolve in the acid and a clear solutioii is obtained. On poiiring into water the nitro-compound icj precipitated abnnclantly in a light-yellow flocnlar form. Chlorine has I:O action upon it when passed over it in a glass tube and even on 11 uming. TVhcn it is treated with bromine in the cold a browinatecl coiiiponnd is formed with very energetic action. -__I Iso-clinnplithyl. Solvents Solubility. Proof spirit . ,. , .. .I Scm~clyat all soluble even oii boiling viith excess. Ether ,..,..........JIore soluble tliaii in VerF sljglitlj j less t.lian alcohol. in alco!iol. Absolute dcolio! . Less soluble than in Slightl-in the cold ; ether separates in solu1:le on boiling. moss-like clusters. Xeth~latedspirit .. *. Xailicr 1;iore soluble. W oocl-spirit . ,. ... From ether -nlcoliol .. iiiistu re cqstallises in octalieclron 3. Light petrolenin -pir:t .. Still inow qol~blctlinii sp. 6'. = 710 in tlie nl-ow. Light shale -spirit .. I:?.ther F?ClC SolLlhle "1). 6". = 737. than il; 1xtti.olenm spirit. Carbon tetmchloride.. .. Not quite so soluble as in bcnzo!. Benzol.. , .. ,. , , ,. About the same as in Sparingly in the cold alcohol. fi.eelF in the hot Anid. Carbonic disidpliide ,. Easil~?o!ul:!c cwii in the cold.Oil of turpentine ,,.. --Vej-easily zolnble. *. SIeltiiig point =154°C. XIelting point =2O4 C. Boiling point = o-rer Boiling poiiit = oTei* 360' L'. 360" C. 012the Ornidntio~~-i~,~odz~ct.s of Esseidial Oil of Omzge-~ieel(Portzrgd) By C. R. A. WEIGIITand CHAELESH. PIESSE.** SOUBEIRAN and Capitaine also Dr. Gladstone have shown that the essential oil of orange-peel consists principally of a hydrocarbon hesperidene CI,H,, boiling at 174". The authors have examined n specimen of essence believed to be perfectly genuine and find that the crude substance begins to boil at 175' 97.8 per cent. of the oil being volatile below 180"; the remaining 2.8 pel. cent. is a soft non-volatile yellow resin inodorous when perfectly free from hesperi- dene but slightly soluble in cold or hot alcohol and of a bitter aro-* British Association Reports 18'71j Chcm.Nem ssi7,147. ORGANIC CHEXISTRY. 118Z matic taste. On combustion this gave numbers agreeing with thosc required for the formula C,,H,,O, the substance containing no nitrogen. On redistillation of the volatile portion over sodium scarcely any action ensues tlie whole being volatile between li5' and lt7" (uncor-rected) Concentrated nitric acid acts violently on the hydrocarbon ; diluted acid less energetically a brown resin being produccd togethei. with much oxalic and carbonic acids. By the further action of nitric acid on the brown resin a yellow resin is produced containing less carbon and hydrogen in 100 parts. Each resin gave on analysir numbers compatible vith those required for substances derived froiu C1,H16,b~-addition of oxygen and replacement of hydrogen by KO2.nitrogen being found in each. By boiling per uscenszm for some hours with solution of potassium dichromate aiicl sulphuric acid sufficient to saturate the metals present in that dt thcre are produced carbonic and acetic acids and the portion of 1iTdrocarbon unactecl on contains a small quantity of n liquid of highel. boiling point than the original hesperidene. On treating this regainccl hesperidene with the chromic liquor acetic acid is again produced from this regained hesperidene ; the acetic acid was ana1-j-sed as barium aid sil-rer salts traces of formic acid and apparently of some volatile acid of higher molecular weight than acetic being also preser,t .From this production of acetic acid the authors consider that tile CH.CH formula jj may express partially the grouping of the coil-(C-JbH13 j " stitaeiit carboii atoms in hesperidene. Further experiments in eluci-dation of 111:s structure (and that of other similar substances) are ii2 propss. C. R. A. TT. F211-fhe2Obserccifiomon the so-called " First Emi~iiigs" f,-otn the A11;07(,,7 JImiufc~ctzwe. By A. KEKVL~.* THE preseiice of aldehyde in the " first runnings" obtained in the manufacture of aleoliol from t'he sugar-beet has long been knovu. Thc results of an extended investigation of these runnings has also lately been published by Kraemer and Pinner who also note the presence of acetal in considerable quantity.Hekulk mentions having received a letter in 1870 from H. WeinzierI chemist to the Pommeranian sugar refincry at Stettin stating that the latter had been engaged since 1866 in the investigation of the first runnings ; that he had observed on rectifying the more volatile por- tion which consisted chiefly of aldehyde that the fraction boiling at 50"-70" deposited white crystalline needles when cooled to -8". He also noticed that the distillate often became warm spontaneously and Deut. Chem. aes. Ber. iv 718. 1185 ABSTRACTS OF CHEAIICAL PAPERS. even boiled just as described by Kekule and Zincke in their commu-nication on chloracet ene. He consequently forwarded his products to Profes sor Keknl&. Examination soon showed that the white crystals were as Weinzierl lncl ali-eady supposed metalciehyde the liquid beiiig chiefly aldehyde.On rectification a spontaneous heating of the distillate was not obserred but a considerable quantity of paraldehyde was isolated from the por- tion which Weinzierl had collected between 40"-60'. The-c obsemations seem to lead to the conclusion that the fresh runnings contain besides aldehyde a volatile substance capabl: of modifying the aldehyde in the same manner as hydrochloric acid car-bony1 chloride etc. This in Weinzierl's experiments in the one case where the distillate vas well cooled had caused the formation of inet-:ilclehyde aiicl in the other mhere it was but slightly cooled the ,,pontaneons licatiiig and formation of paraldehyde.Tile nature of this ferment-like substance could not be detei-mined by direct esperi- inent but there was a probability that some oxide of nitrogen iiiiglit hai-e had this action ad in fact experiment showed that even traces of iiitric acid nitric peroxide or nitrous acid exertccl upon aldehyde a rnocli-fj7iiig action similar to that of hydrochloric acid carbonyi chloride &c. i<ckul6 questions whether the body which Kraemer and Pinner clcscribecl as acetal was not paraldehyde. He is also incliiiecl to attri- bute the formation of aldehyde not to direct oxidation on the carbon filters-Kraemer and Pinner's view-but to the oxiclisiiig action of the nitrates present in considerable quantity in the liquors fermented which -iT-hen the so-called nitrous fermentation sets in are reduced at the expense of the alcohol.In reply to the above Kraemer and Pinner* state that they omitted specially to refer to the presence of metaldehyde and paraldehyde both of which they obtained the latter in considerab!e quant it-j-,because they considered the formation of these bodicx a matter of course since alcieliyde is knom-n to be converted into paraldehyde Ti-it'h very great readiness a small quantity of metaldehyde being formed simultaneously. They further hold that the body described by them as ncetal is not pma1deh-j-de,as Kel.;uli! suggests. Apart from the difference in boiling point (acetal 103" paralclehyde 125") the composition and molecular weights of the two bodies arc so different that the nurnbcrs obtained leave no doubt as to the nature of the body under examination.C dcetal. = 61.01 Experiment. 60.4 Paraldehycle.54.54 H = 11.86 11-85 9.09 Density 59 57.8 6G * Deut. clliem. Gcs. Ber. il- '787. ORGANIC CHEMISTRY. 1189 It has been since obserreci that the fresh runniiigs contain no acetal whereas it is present in those which linve been kept some months so that there is no doubt that alcohol and aldehrcie combine directly at the ordinary temperature to form acetal. KekulB’s hypothesis that the aldehyde is foriiiecl during f ermenta-tion by the oxiclising action of the nitrates is jcarcely possible in the case of the runnings examined by the authors nhich were from potatoe spirit since the amount of nitrates in potatoes is far too small to yield so coiisidsrable a quantity of aldehyde.Further a considcrable heat- ing of the carbon cylinders is observed on passing the spirit through them a proof of chemical action. Being in possession of some quantity of metalclehyde they have made it the subject of some experiments. It correspondq as is known to tlie only known aldehyde in the methyl series ; like this il is solid at the ordinary temperature and monomolecular in the gaseous condition. ,kurnonia llowvevey has no action on it ; with niethalciehycle it yields the body C6HILN1.The authors are of the opinion that both conipounds are liexmolecnlar at the ordinary temperature. They are engaged with esperiiiients in this direction. H. E. A. Xd$liet?zers of Ethylme.By F. EWERLOF.* THEfollowing bodies were obtained by tlie action of ethylene bromide on sodium iiiercapticle :-C,H { i:::,b.p. 183”; probably converted by fuming nitric acid into methylethylene sulphin-nitrate. { g::z, C,H b.p. 210°-2130 ; oxidlised by nitric acid to C,H1{ soCiH,’ which SOC H-forms glistening crystalline scales melting at li0”. C,H1 { SCJH1l,b.p. 24.5”-255” formed in like manner is converted SC,H, by oxidation into CsHi{ ~$?~~:~, which is obtained in thin plates melting at 145’-150”. CzHl{ :$: white needles insoluble in water melting at 65”. It yields on oxidation with chromic acid C,H { SOC,H,. By the action of bromine the compound C,H4 bably formed. X Deut. Chem. Qes. Ber. iv 715. I190 ABSTRACTS OF CHEMICAL PAPERS.Sulphetheric derivatives of acetic acid :-COOH G~~, { CH2SC€I -{ ~~$+,~ ctc. 1inT-e also been obtained and am under examination in Professor Blomstrand's laboratory. H. E. A. On the? Actiolz of Chloyiize OILvcuious l~odicsof the TI~r*ce-Cfurboi~ Xcr.ies and on the IsometicJes of Ti*i~l~loi~l~~~7r.i~~. and R. By C. FRIEDEL D. SILTA.* THEidentity of the compounds C,H,Cl derived from methylclilorncetol and froin cliloricle of propylcne (wliicli had been asserted by one of the authors) ha~iiig been called in question by Berthelot they hrtre exaniiacd tlic action of chlorinc on propylene chloride derived from acetone and dso from iodide of allyl. When chlorine is allowed to act in the clnrk on chloropropplcne (prepared from acetone) cooled by ice hydrochloric acid is evolved during the whole of the reaction.If the process bo stopped after R while the licinicl clistilled the portion distilling below GO" again submitted to the action of chlorine and the liquid fractionally dis- tilled c~icliloroprop~lcne C3HiC13is obtained boiling at 93". I31the action of bromine in diffuse daylight r2 chlorobromidc is foimecl C,K,C1,B~2,wliicli boils from 200"-205 Dichloropyopylene hntecl O. with alcoholic pot~sh to IfiO" -j-ields a chlorinated ether by the snb-stitntictil of (OC'LHj)' for C1. Cliloi~opropy!ene from acetone subjected to the action of chlorine in sunlight or bright diffLiscc1 light and cooled by ice yields an isonieride of trichlorhg-chin boiling between 122" and 116".Chloropropylene prepared from iodide of allyl boils at the same temperntnre 2s that from acetone (25" to 28') yields a clichloropropy-lene liariiig the same boiling point as the one already described and mTitli liromine a chlorobromide boiling between 200"-20~". Alcoliolic potash acts iii the same manner on this dichloropropylene as on the one before described. These facts the authors regard as coiiclusirely demonstrating the identity of the two compounds C,H,Cl derived from acetone and from prop-ylene A. P. 012 tkc Actiorb of Phosyhoms Pemkdiloride OTL Dicldomldelycle. By E. PATERS~ and G. PISATI.? WHEYciichloraldehyde prepared by distilling dichloracetal with strong sulphr7ric acid and purified by treating it with phosphoric anhxdride distilling aid collecting the portion which passes over at 88" to go' is added by drops to phosphorous pentachloride in a ceded Tessel * Compt.rend. lxxiv 955. f Gazzetta chimica Italiana i 461-469. ORGIIKIC CHEhIISTRY. 1191 connected with an ascending condenser and the oily product sepnrated by water is distilled in a cnrrent of stea,m and then subjected to fractional disti!lation a transparent liquid is obtaiiied bo2hg at 147'>togetlier JT-ith a sninll quantity of another liquid boi'iiig at 250". The former has the composition of tetrachlorethane C2H2Cl4,aiid is formed accoding to the usual reaction of plin-,:?!iorns pentaclil~iIdcOi nlc?ehyles by the substitution of 2 at C1. fc. 1a+.0 in clichloralc7lch;dc :-chloride cjf ~~ldilorethylene and to Geuther's trichlorinnted et1i-j-1 chlorick.When die ~.on~pound C,HCI, resulting from the action of potash on tetrachlcretliaiir is subjectecl to the action of antiniony pcntacldoride it takes rLp 2 atrms of chlorine and is convertecl into peiiiachlor-ethane CLHC15,boiling at 158". The same compound is o;~trtfiicdb-j-the action of phosphorus pentachloride on chloral and is in all pro-bability identical with the tetrachlorinated ethyl chloride mcl t richlor- ethylene cllloride which Reqnanlt obtained by the action of chloriiie in sunshine on ethyl chloride aid ethylene chloride respectid-y. Paternb had found? that when. crudc dichloraldeli~-~le prepared as above but contaminated with h-j-drochloric acid sulphurous acid and water is subjected to the action of phosphorus peatachloride the chief product is a body CIH,CI,O containing the elements of tetrachlorethane and dich!oraldeh-j-de.To determine which of the above-mentioned im- purities gives rise to this difference in the result the authors examined the action of the pentachloride on dichloraldehyde-( 1)saturated wit11 hydrocliloric acid ; (2) saturated with sulphurous acid ; (3) mixed with mol. water. The first yielded chiefly C)*H,CI,O mith a. sndl % Compt. rend. lxix 542. + Giornale cli Scieilze natuali ed economiche V 12.3. 1192 ABSTRACTS OF CHEMICAL PAPERS. quantity of C2H2C14,the second and third chiefly C2H2Cl4,the total procluct, however being sinaller in the third case. The authors leave it for the present undecided whether the compound C4H4CIG0consists of hexchlorinated ethyl oxide C2H2Cl,-0-C2H2C13, or of a true con-densation-product having all its carbon-atoms in a single chain.H. W. ActiniL of Xuiiliyht on Olice Oil. By LUIC;INosc ~IISI.'~ OLITCoil in its natural state contains in solution a yellowish substance wliich when the oil is treated with acids or with caustic soda gives rise to the well knomi greenish coloration. R-J exposure to sunshine this coloiiring iiintter is essentially altered. the oil being thereby decoloriseci mid no longer exhibiting a greenish colour when treated with the reagents nbore mentioned. Xoreover otliw changes take place at thc same tinie in the constituents of the oil the olein in par- ticular being greatly altered aid acquiring tlic funclaiiientnl property of e7cii'iliu namely that of not solidifying in contact with nitrate of' mercury mixed with nitrous pi*od-ricts.At tlie same time fi-ce acids arc formed and the oil acquires n rancid taste aiicl oclonr. From thesc results if appears that the method suggesteci by some authors of distingnishing olive-oil from otliei. oils by iiieans of sulphuric acid caustic soda aiicl nitrate of mercury can be depended ~ipoii only when the oil is in its natural state not altered by exposnre to sun-shine. H. W. 0ib the Ele7.rieiitcity C'o~i1pOSifioi~ oj. Vegetable Fdc cmd the Amowit iuj Digestible Tat 211 Pndtlet.. By J. KOSIG.? T~IE fat mas extracted by ether aftell tlie plan followed by Stolimann.Tlic nrnouiit yielded by various vegctable substances is gi-ren below. In the case of clrying-oils both the seed and ethereal extract mere dried in a stream of hydrogen; neglect of this precaution gives a result above the truth. 'fhe ethereal extracts were freed from chlorophyll by means of animal cliarcoal except in tlie case of the oil-seeds. This treatment involves a sliglit loss as the charcoal obstinately retains R little fat. *Gazzetta cliiiuica Itsliaiia i 580. fVersuchs-8tatioiieii Oqpii. xiii 241-255. ORGAXIC CHEJIISTRP. 1193 Fat per Fat per Fat per cent. in cent. in cent. in fsesh clry fresh subst R~CC. substance. subst ance. ----__---Linseed . . . . . . .. 31 *94 35 -31 Rje . . , .. .. ,. 1-35 Rape seed... . . . 41 -90 45 -19 Wheat . . . . . 1*li Hemp seed . . .. 32 '37 35 *25 Oats.. . . . . . . 41.04 Poppy seed . . . . 40.07 43 '39 Barley . . . . . . 1-51 Beech-nut. . . . . . 23.08 28 *18 Maize . . . . . . 4-47 Palm-nnt keriiel 45.07 52 -8.5 Lupin . ,. ,. . 5 *20 Earth-nut . . . . . 51 -51 55 -25 Peas.. . . . . . . . . .81 White sesame . . 49 31 52 -50 Beails .. . . . . . . -93 Black sesame .. 46.02 49 -28 Grass hay . 1*39 Cocoa-nut .. . . . . 64 .IS 67 -76 Clorer hap ,. . . 1.43 Mach seed , . . 3? *33 40-44 RJc straw . .. *'is Cotton seed ,... 10 -49 21 .?S Oat straw . . . . *s1 Tlie fat obtained from tlie pi-ified etliereal extract is in the ensc of hay a mixture of fat and wax. These mar be separated with tolemlsle accuracy by dissoli-iiig the crude fat in hot absolute alcohol the T~ then sepai*atiiig 011cooling ; it is washed with cold alcohol and veizlied.Among tlic seeds esnmincd rye alone contaiiied an appreciable anioLlilt of wax. Dry focicl~rgave the follon-ing peuxiitages of fat and wax :-Tlie elenientary conipositioii of the various fats IT-as cietemiincc! from fkts pnrified by treating tlieir ethereal so1utio:i vith animal cl1t;r-coal. The lupin fat was futher treated n-itli hydrochloric acid aid again exhausted with ether to separate the alkaloid which it contains. In the following table the fluid 01' solid natnre of the fat is incticatd by tlie letters f and s. 1194 ABSTRACTS OF CHEMICAL PAPERS. Source of fat. --~--Linseed ............77 s-10 11'10 11*SO s Cocoa-nut .74 -1611-72 14 *12 Rpc ...... 76.71 11.t9 11*SO ........ Wheat. , 77 -1 9 11'9'7 10 -84 Barley ..,. 76 '29 11.'77 11-94 Behi-nut .......... .65 Oats.. ,.,. 75 *6711*7712 '56 &India seed ,,,..,,. I 4 *23 Maize .... 75 .tO 11.43 12 .'/S TVhite sesame ...... 77 '35 Lupin .,,. 75 .94 11-5912 '47 Black sesmie. ....... 76 '17 Peas.. ,,.. 76 71 11*9611'33 Cotton seed ........ 76 '40 Beans ..,. 77 *5011*8110*69 Eayth-nut ..........75 .73 Potatoes .. i6 *1711*8511*08 I'nhn-nut kernel :-Mangolds. . 76 '12 11-6912 '19 nice meal. . 76 *1711.51 12 *32 b little wlnble Portion soliible in cold alcoliol :-~ ,f Meadom-1i.1~........ 76 -13 )) . Clo\el' llnJ ........77'14 s 11) c ~~KIW ..........i$ *39 Oat stmw ..........78 'GO , Ycx.\ straw ..........T9 *29 , The percei:tage composition of the various fats agrees iii most cases jvith that of a mixture of the three glycerides:- i-Triolei11 ...... 4 4-38 carbon. 11.76 hydrogen. 10.86 ox-j-geii. Tristearin .... 76.85 , 12.36 , 10.79 , Tripalrniiiii .. 73.93 , 12-16 , 11.91 , Rape oil gives an unusually high proportion of carbon ; this arises froni its containing the glyceride of brassic mid. Earth-nut f'at appa- rently contains fatty acids low in the series as the fats I~oTT-~ to be present naiiic1-j- palmitin arachin and hypog&i have all mom carbon than was found on analysis. Palm-nut kernel fat is probably rich in some of the loiI-ei- fhtty acids; its odour is particularly suggestim of snch ncircumstance.Cocoa-nut fat is known to contain the glycerides of iwtic caprylic and caproic acids ; the presence of the zcconnts for the low carbon found. The specimens of oat maize aid lupin oil had become somem-hat oxidized by exposure to air. The oil of maize is apparently a drying oil. The author and Dr. Dietrich made experiments on the digestibility of the fat of iueadow and clover hay. TI.27 conclude that the true fat alone is digested and that the whole of the wax is found in the excre- ment. The quantity of fat in the fodder soluble in cold alcohol repre- sented in fact the quantity digested by the animal. The digestible ORGANIC CHEMISTRY. I195 fat of dry hay is 1 to 1.3 per cent. ; that of rye and oat straw *4to *G per cent.The fat of pea straw is wholly wax. The composition of the ax found in the excrement was its fOl!OTTS :-Portion soluble in cold Portion scawely soluble in alcohol. cold alcohol. 1 C. H. 0. C. H. 0. ------__--hIeaclom bay . . . 80 *5l 12 -41 7-08 83 *25 14.38 ' 2 *3'7 Clowr hay . . . . . . . . . . . . '79 *53 12 '43 8-04 82 *?A 13 -65 3 .G1 Fron these analyses the author concludes that hay contains at least two ki.;ds of TYRX the one containing thc least carbon being the most soluble in alcohol. He suggests that a hydrocarbon may possibly be present as the percentage of carbon and hydrogen in the portion insoluble in alcohol is higher than in any known nicmber of the fatty series. R.IT Nofe OIL An5j?cictZ Ali.znr*iti. By B.BOETTGEB and TII. PETEESCX,* As Liebermann has expressed some doubts as to whether the diamid- anthraquinone and its derivatives which were pi*eviously described yield alizarin when fused with caustic potash the authors have re- peated their experiments and found their former observation completely confirnied. The alizarin obtained was analysed and its spectrum com- pared iyith artificial and with natural alizarin. No difference could be observed in these spectra. c. s. Dissociatio?z-teii.sions of Ammonium Cadmmate. By A. NAUMAXX.~-ONvolatilizing ammonium carbamate it is completely decomposed into n-xnonia and carbon-dioxide. Five determinations of the vapour- density made with Hofmann's apparatus at temperatures ranging be- tween 37" and loo" gAve numbers between 0.896-0.891 the density calculated for 2NH3+C02 being 0.898.The apparatus has to be heated for one hour before the volume becomes constaiit and at low temperatures the tension reaches its point of saturation with extreme slowness increasing very gradually when previously below this point * Deut. Chem. Ges. Ber. iv 778-779. + Deut. Chem. Ges. Ber. iv '779-783 ; fully Ann. Ch.Phann. clx v 29. 1196 ABSTRACTS OF CHEMICAL PAPERS. and decreasing as slowly as the temperatiwe is lon-eered. Bodies wliich volatilize without dec-,mposition as naplitlialeiie and carbon sesqui- chloride behave differently. Froni a great numbel- of experiments the following table was calcu-lated :-Teinp. Tension. Temp. Ten ion. Temp. Tension.Teiiip. Tension. -15" 2.6 mm. 10' 26' 97.5 inin I-- 42' 27s 111111. -10' 4.8 12' 28' 110 44- 316 -5" 7% 11' 30' 121 46O 353 0- 12.4 1G' 32' 143 48' 303 2" 15.7 18' 34' 1GG 50" 470 4-6" 8' 19 22 25.7 20' 2,"' 2A3 36' 38' 40' 191 219 218 55"(;or 600 770 - This table shoq-s that the dissociation-tension of aiiimonium cnr-barnate increases by inwease of temperature siiiiilnrly to tlie tensions of othcr substances. c. s. 011 tlic Belirwi'ozir qf some Dictro-~o~r~i~oiii~~~~ ?r*l'ihAliici7,'12c Blszclp7~itcs. By A. S~ncc~;k:r,.-~ DIAZCEESZEXE nitrate is readily soluble :in a solxition of potassium bi- snlpliite the liquid hcomiiig hot nnil sulphur clioxicle is given OF. On cooling it soliclifics to a mapa of yellom crystztls which by re-crjstallisatioii from boiling irFuter are obtained in the form of coloarless shining scales having the composition C,HiN,SOaKf H,O.It does not explode on heating and yields neither ninmoiiia iioi* aniline vhen hated with soda lime. When it is heated TTTitli nitric acid sulphuric acid is formed. On aclcling barinni chloride to the hot solution the salt (CsHiN2S03)2Ba,contailling water of crystallisation separates on cooling in colonrless crystals. When sili-er nitmte is added to the solution of the potassinni salt metallic silver is precipitated as a white powder and the yellow solution yields on evaporation fine yellow shining plates of a silver salt which explodes when gently heated ; the composition of this salt lias not been ascertained. By acting with potassinni bisnlphite on diazobenzene-snlphonic acid the compound-C6H,K,S0 is formed according to the equation- C~H4N2803+ 2HKSO3 + 2HzO = CGHBNZSO + HZSOi + KZSO,.This acid crystallises from boiling water in colourless shining needles 01' plates. By boiling it with nitric acid no sulphuric acid is formed Deut. Chem. Ges. Ber. iv 784-787. ORGANIC CHEMISTRY. 1197 and when it is heated with soda lime only half of the nitrogen is given off as aniline (or ammonia). The barium salt (CsH,N,S03)ZBa+5H,O obtained by boiling the solution with barium carbonate crystallises in long lance-shaped light yellow needles. The lead salt (CsH,NZSO3),P73 +2Hz0 forms small white crystals. The acid reduces silver and mercury salts ; its salts are isomeric with those obtained from diazobenzene nitrate.c. s. ~I~tlz~ld~)hei2yln~~~~~~e. By C. BARDT.~ Ix a paper inserted in the Compt. rend. of the 4th September last Girard aiid Vogt announce the discovery of methyldiphenylamine ob-tained by the action of methylaniline on aniline hydrochloride although the method of preparation and the reactions of this base had been described by the author in January 1870 and reproduced the same year in a scientific journal.? When dipheiiylamine is heated with methyl iodide or when the hydrochlorate is acted upon under pressure by methylic alcohol ac- cording to Berthelot's method a colourless liquid is obtained boiling at 290" and having an agreeable odour recalling that of diphenylamine. It gives cz magnificent violet coloration with nitric acid sncl a fine blue by the action of reducing agents.It is evident from the method of its formation -that this is the true methyldiphenylamine. On the contrary the volatile liquid obtained by Girard and Vogt by the action of methylaiiilinc on aniline hydrochloride ,has no thing in common with this base except the boiling point ncither does it contain any of it as the least trace would be revealed by the action of nitric acid producing the chmacteristic blue colour. The author concludes tberefore that the base obtained by Girard and Vogt is only an isomeride of the true methylciiphenylamine. C. E. G. AZlniztoiiz chid Bodies Derived Tlum$imn. By E. MULD ER.$ Pi.epmtiou.-In working by Liebig and Wohler's method the author found the yield increased when more water than usnally recommended was taken viz.about one litre for every 25 grams of uric acid. The greatest yield however was obtained by effecting the decomposition at the ordinary temperature ; 100 grams uric acid were stirred up in 1 to 2 litres of mxter a small quantity of acetic acid added and the necessary quantity of plumbic peroxide then gradually introduced. The beaker containing the mixture was exposed to bright daylight. * Compt. rend. lxxii 751-752. + Brevet NO. 88,713; Moniteur Scientifique 1870,553. Ann. Oh. Pharm. clix 349-365. TOL. XXIT. 4L 1198 ARSTRACTS OF CHEXICAL PAPERS. The acetic acid is added in order to start the decomposition which is promoted by light.For 100 gmms uric acid the peros:lde from 1.5 kilogram red lead was required ; both the peroxide and the uyic acid were employed in ihe dried state. The decomposition being ended the whole is heated filtered and the residue repeatedly exhausted with irarm water ; the filtrates to which a small quantity of acetic acid is added are evaporated and filtered. On cooling the allantojin separates out and a further quantity is obtained on coacentmting the mother- liquor. 100 grams of uyic acid thus treated yield 30-32 grams of pure allantojin. The forwatioii of nllanto'iii is usually expressed by the eqmtion :-CjHJY403 + HZ0 + 0 = CIHfiNiOs + COr. according to which 100 grams of uric acid should yield 92 grams of ;?llanhYn,and the loss is supposed to be due to further partial oxidation by the peroxide.The author finds however that allantojin is ?Lot per-ceptibly decomposed by plumbic peroxide at the ordinary temperature and only with extreme difficulty on heating. He believes that the formation of dialnric acids precedes that of allantojin probably accord- ing to the equations :-Z. 2C5H4N403 + 4HZO = 2C4HJ204 f 2CH4N20. Dialuric acid. Urea. In this case 100 grams nric acid should -yield 46 grams allantoh. AZZnntoi'n Nitr*nte.-A mixture of 2 grn:ns allaatojin aid 3 grams ordinary nitric acid was allowed to stand for some w-eeks over lime. The apparently amorphous product vas analysec! and gave i1umbc1-s agreeing with the formula CdHGN4Q3,HNQ3.It is decomposed by vater allantoh crptallising out ;dso by alcohol Tvhich leaves a residue of allnntoin.A!luiito'in combines with sulphuric acid but the com-pound was not analysed. Allnik Acid.-Allanto'in is readily dissolved by nitric acid (1.3; sp. gr.) on warming on the m-ater-bath. AfteiI evaporating a sticky mass remains which becomes hard transparent and amorphous on cooling. This recrystallised several times from water gave beautiful starlike groups of needles which contain 1molecule of water of crgstallisation. Dried at 110",their composition is C4HjNjOj. This body has an acid reaction ; it is difficultly soluble. in cold water ; on evaporatioxi of its aqneons solutioii it is g:radnally clecoi~~l~oscd. Ammonia cii+dves it resJi:$ at ordinary tcmperatures the solution depositing 011 standing J Gibbs has shon that allantoin may be obtained by the osidising actioll of nitrous acid 00 dialuric acid.ORGANIC CHEMISTRY. 1199 v;ell formed prisms cE a. snlt having the composition CIH,S,0jNH3. On .lie addition of 41~drocliloric acid to a coucentrazed sohitioil of this salt the fi-ee acid crystallises ont in concentric groups of needles as before. Silve:. nitrate in ammoniacal solution produces an amorphous precipi- Eate which after re-crystallisatrion from water has the composition C&AgN,05 + aq. Allniiic acid decomposes at 210'-220" without previously melting. It is precipitated by neutral lead acetate but riot by the basic acetate ; the precipitate suspended in water and decomposed by hydrogen snlphide yields on evaporation at ordinary temperatures well crystallised allanic acid.By the abore method but little acid is fi;r;ned ; a better yield is obtained by gradually adding nitric acid con-tnining much nitric peroxide to finely powdered allanto'in contained in a well cooled porcelain Aisl. nntil the whole is dissolved. On allowing the solnticii to stand for some time a crystalline crust formed which when re-crpstallised from water gave the characteristic iieedles of allanic acid. The yield is about 50 per cent. of the allantoYn employed. Three lead-salts of the acid were obtained one normal and two basic C4H4PbN503+ aq. ; CIHJ'bN505.2PbH0 ; C4H1PbX50s.3PbH0. Other salts were also prepared viz. silver barium potassium mag- nesium but not analysed. That allanic acid is not nitroallantoyn C4Hs(N0,)N40s,seems probable to the author fi*om the fact that even its silver salt is not explosive; that it is not reduced by hydrogen sulphide in strongly ammoniacal solution; that it is less easily reduced than allantojh by concentrated hydriodic acid.AZZa 12 tZLr'ic Acid .-On allowing the mother-liquor from the prepara- tion of allanic acid by the first of the above methocis to stand in an cxsiccaior a further quantity of the acid ciytallised out accompanied by an evolution of gas ; well formed prisms of urea nitrate were obtained at the same time. The syrupy residue ims freed from cq-stals by v;:-ashing with a little cold water allowed to stand and this operation repeated until no further deposition of crystals or evoltitioii of gas took place.The solution was then fractionally precipitated by basic lead acetate. Analysis of one of the later precipit,ates gaTe carbon 10.6 per cent.; nitrogen 10.9 per cent.; lead 57.1 per ceilt. The acid of tliis lead salt is probably identical with Pelouze's allalltwic acid to wliich he assigned the formula CloHL,N80,; his analysis how- ever ga-re less nitrogen than is required by this formula. The author considers allanturic acid to be identical with the acid of his lead-salt and that its formula is CiHloN606. This contains the same percentage pantities of carbon and nitrogen (12 X 7 = 14 x G) 1~7itllqrliich the results of the above analysis agree. Its formation may be expressecl by the equation :-422 1200 ABSTRACTS OF CHEMlCAL PAYERS.Allantoh was also similarly decomposed by evaporation with hydro- chloric acid. The lead salt of the resulting acid gave carbon 10.8 per cent. ; nitrogen 10.8per cent. Allanic acid was not noticed among the products of the decomposition of al1anto;in by hydrochloric acid. But very small quantities of allanturic acid were obtained by either of the above methods. .Prepcwi tioI L of A11cmto‘in by Xcli 1iepey’s Alet7r.ocl. -This consists as is known in the employment of potassiuni ferricpnide as osidiser the uric acid being dissolved in potassium hydi*ate solution. The yield is about the same as when the peroxide is employed and the quantity of salt used is in accordance with the equation before given for the for- mation of allantoin.The formation of the red body from which Sclilieper could only purify his allanto’in with difficulty was readily avoided by using less water tlian he directs and by neutralising with acetic acid. Potcissizim 87Z1C7-Lto~~L.-Obtaineci by adding potassium hydrate to finely powdered allanto‘in suspended in water until complete solution is effected. The solution mixed with alcohol aid allowed to stand over lime deposits the salt which after re-crystallisation from aqueous alcohol forms cz beautiful silky glistening voluminous mass of the composition C,H,KN,O,. It is extremely soluble in water and has an alkaline reaction ;on the addition of acetic acid nllanto’in separates out after some time. AZla IE~OL‘CAcid.-Acetic acid causes no precipitate in a solution of allanto‘ili in an excess of aqueous potassic hydrate which has stood some days.Acetic acid was added to acid reaction also a little alcohol and the whole allowed to stand over lime. A body then separates out in the form of a hard crust which after recrgstallisation has a neutral reaction. Its composition is represented by the foimnla CII-IiN4KOr. The mother-liquor contains neither urea nor oxalic acid and about a theoieticnl yiclci of the salt is eventually obtained. The formation of an acid by the action of potassium hydrate was noticed by Schlieper ; lie analysecl an amorphous lead salt of what lie termed hydantoic acid C4H,NI0,. His salt v-as probably impure as the above salt gires a crys tslline precipitate with lead acetate.Lcmtnir.uuic Acid. -Schlieper obtained the acid potassium salt of an acid of the composition C3HJV203,by the action of potassium hydrate on the impure allantoh prepared by the action of potassium ferri- cyanide on uric acid. The author could not obtain the same product with pure allanto’in. Possibly Schlieper’s acid is an oxidntioii product of allanto’in cine io the employnient of an excess of fen-ricpanide. 13. E. A ORGANIC CHE1IIISTRY. 1201 CL Nezv G'rysfnllilie Xzibstnrice fivtrt tltc il~~i~t~~~Z Mdolo~~tl~i~ Body. By PHILIPSCIIREINER.* TEIC substance described Tnnder the name of meloloathiiie was extracted together with leucine and other matters from the body of the common cockchafer (JIelolonthn uzdyrwis) by freeing the watery decoction of the insects from albumin and other substances by boiling and treatnient with lead acetate.On removing the excess of lead by hydric sulphide and concentrating a crop of crystals mas obtaincd which when exhausted by alcohol left melolonthiiie as a residue. The substance was obtained pure by recrystallisation from very dilute solution of ammonia. 30 pounds of the insects furnished 1.5 grams of rnelolonthiiie. Melolonthiiie is a beaut8iful silky lustrous crystalline body taste- less and odourless. It is solrible with difficulty in cold but inom readily in hot water ; quite insoluble in alcohol and ether. The caustic and carbonntecl alkalies dissolve it readily. The aqueous solution has 110 action on vegetable colours. The author assigns to nielolonthine the formula C,H,,N,SO,.This formula differs from that of cystine by the elements of a molecule of acetamicle and from tauriiie by the elements of a molecule of proprio-nit rile. T. s. crnd and 012 Cl~lo~*o~1liyZ1 soiiie of its Det.ivntlces. By E. GERLAYD N. W. P. RAUWEK'EIOFF.~-THEauthors have examined the absorption-spectra of freshly prepared chloropliTll of an alcoholic solution of chlorophyll which had been kept for seveid years in the dark x ICIcf some of the clerimtives of chlorophyll. These absorption-spectra are laid down in a series of diagrams accordiug to the method of J. Muller. A freshly prepared alcoholic solution of chlorophyll from Brc/sslccc c~let~ccccci gives five absorption-bands of which the first in var.c,*is~m the red is divided into two by a soniewliat lighter central intcrral. An alcoholic solution of chlorophyll which had been prepared in 18133 from TiZicL ezctyecc gavc the spectrum of modified chlorophyll the solution not having snffered any further decomposition in the course of 5; years. The spectruiii of modified chlorophyll shows the first band also divided into two. On evaporating a solution of chlorophyll in weak spirit on a sand-bath all the chlorophyll was precipitated and on examination proved io be modified chlorophyll ; the supernatant liquid contained aldehyde. This seems to show that the opinion of Timiriaseff according to which modified chlorophyll is formed by reduction is correct. Deut. Chem. G-es. Ber. iv 763-765. I-Pogg.Am. cxliii 231-238. 1202 ABSTRACTS OF CHEMICAL PAPERS Films of solitl ch!orophyll as wcll as green leaves sliow the sanic" absorption-bands as a freshly pi-epared alcoholic solution of cliloro-phyll. The authors finally as Filhol aacl Timiriasef? had done previonsly arrive at the conclusion that chlorophyll is composed of a yellow and a green colouring matter which may be separated from each other by simple filtration through animal charcoal. These tn-o colouring matters are not however the phylloxanthin and phrllo-cyanin of Pr6my; the former of these seems to be nothing but modified chlorophyll. Nor are they the yellow and green colouring matters prepared from chlorophyll by Kromeyer. Neither of these two pairs of sxbstanczs is cnpnble of forming chlorophyll.In leaves that become -jxl!om it appears that the clilorophyll dis-appears either by being absorbed or by becoming converted into the yellow component. A. D

ISSN:0368-1769    

DOI:10.1039/JS8712401183

出版商:RSC    

年代:1871

数据来源: RSC

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ABSTRACTS OF CHEMICAL PAPERS, 1202 Physiological Chemistry. QUISINC has been foniicl by Biiiz to have an extraordinai*y power of arresting the processes of fei-mentation slid putrefaction aiid to be a powerful poison for low oi-ganisnis or to speak more generally for all moviiig bodies consisting of protoplasm. It kills the fungi siicl bnc-teria etc. wliich accompany ferineiitatioii and putrefxtion mid puts a stop to these processes themselves. It arrests tlie motions of tlie ~liite blood-corpuscles mcl thus prevents them from making theiy exit fi’om the bleod-vessels. It therefore diminishes 01-arrests the formation of pus in inflammation pus consisting in great measure according tc Cohiiheim’s well kilowil theory of an acci-imdation of wliite cor-puscles which h,z~-e issced fi-om the vessels.It destroys tlic power of certain substances to produce ozoiie. Tlie red blood-corpuscles liavc this pom-er and by depriving them of it quinine when present in the blood must diniinish tissue-change in the bocl y and thereby lessen tlie production of heat. That it does diminish the temperature of the body and therefore proves useful in ferer has been demonstrated by direct observation and its power to lessen tissue-change has been slio~m. by the observations of Ranke slid Kerner ~~lio faunc‘t that tlie amount of uric acid and urea excreted daily in the urine becaine much less when large doses of quinine m-ere taken. Simple examination of the urine however although it may show that the tiisue-change is * N.Repert Pharm. xx 539-565. PHYSIOLOGICAL CHEJIIXTRT. 1203 diminished yields no information regayding the extent to which this is due to the direct action of quinine on oxidation and how much to its indirect influence through the nervous system. The only previous observation on this subject is one of Harley who found that blood to which quinine had been added in the proportion of 1part to 12,000 took up less oxygen and gave off less carbonic acid than normal blood. The changes in the alkalinity of the blood observed by Zuntz furnish a much more convenient method of investigating oxidation in it than the gas analysis used by Harley and this method was employed by Schulte in his experiments. Zuntz noticed that a considerable formation of acid began to take place in blood immediately after it mas drawn and continued in a less degree until putrefaction corn-menced.As the formation was most abundant in the first fcw minutes before coagulation took place he thought it a vital phenomenon. The amount of acid formed was estimated by the diminution it produced in the alkalinity of the blood. The process emplojecl for this purpose depends on the fact that the colouring matter of blood-corpuscles does not diffuse out of them into sufficiently coilcentrated solutions of sodium chloride while the alkalies or salts they contain do 50 readily. The alkalinity was deterniined by nieaiis of dilute phosphoric acid to which a quantity of sodium chloride had been added- sufficient to prei-elit the blood-corpuscles from being dissolved and t!re reaction interfered wt-i~ii by their colonring matter.The point of saturation mis lielcl to b= reached whenever a distinct reddening of blue litmus paper vas pro-duced even althongli the red disappeared immediately. This transieiit reddening 11scxbonic acid was chosen rather than the first permanent reddening bemuse it coald be more easily observed. The abso;ntc amount of alkalinity is not asccrtaiiieci thus bat the compax:;\ e amount of different samples of blood is all that is .n-anted and if thep be treated alike as regards temperature shaking be. the error cauc;ed by the carbcnic acid is the same in all. The amount of enor may be ayprcsimately estimated by noting the pint at which a transient red- denhg occnrs in the cold in a solmtior of sodium carbonate of nearly the szme alkalinity as the blood and then cleterminiiig the real alka- linity of the boiling solution.The litmus pper usel should be made of sxllooth satin paper and must not be too deeply tinted. The tiac- ture with which it is prepared should haT-e acid added to it in quantity sufficlent to give it a violet tint. When used it should be moistened with solution of sodium chloride a drop of blood p:aced upon it for a few seconds and then removed by blotting-paper mith the aid of a drop of solution of sodium chloride. By means of this method Zuntz and Scharrenbroich found that quinine anci beyberine lessen the production of acid and Schulte by the experiments which he here details confirms this resu-lt ; shm- thai 1204 ABSTRACTS OF CHEXICBL PAPERS.quinine can stop it both before and after the coagulation of the blood that sodium nitropicrate has a similar action to quinine and is nearly as powerful while cinchonine has a very much smaller effect. Harley found that while quinine lessened oxidation in blood other substances such as snake-poison increased it. It would seem from the expcri- ments of Binz that similar processes occur in the living body for when putrid fluids were injected into the circulation of an animal its tem- perature rose but if they were previously mixed with quinine or if a dose of quinine were injected along with it the rise of temperature ms arrested or much diminished. The author gives the results of some researches communicated to him by Zuntz on the influence of quinine on the tissue-change and the exwetion of urea.The experinicnter put himself on a constant diet and after the daily amount of urea excreted had become cofistant he took three closes of 0.6 griii. of hyclrochlorate of quinine for two days. The amount of urine at first increased by a third aiid then sunk as much. The specific gravity sank from 1,018 to 1,012; the urea sank one-third on the first day on vhicli quinine \\-as taken aiicl became still further diminishecl on the second. As soon as the quinine was stopped the urea increased aiid on the fifth day again reached its normal amount. Quinine could be detected in the urine by the iodine test till the third day. The diminution of urea is large com- pared with that found by Kerner but during the present series of experiments no tea or coffee were taken and these TTTOU~~ lessen the urea on the days when no quinine was taken in his observations.Unruh has found similar but less distinct results in cases of fever but it is doubtful whether the quinine he administered was all absorbed. T. L. B. On a Blzce Colowiitg Jlcctter in the Eile. By E. EITTER.* ST~DELER and Jaff6 have shown that a blue colouring matter can be obtained by the action of nitric acid on the biliary pigments. Ritter describes a blue colouring matter which he regards as a constituent of the bile and not as a product of chemical action. He finds it in the bile of man the ox the sheep the pig the dog and the cat.It is prepared as follows :-Bile is shaken with chloroform till a -yellow solution is obtained and the yellow chloroform solution is treated with soda till the colour entirely disappears. On neutralisatioii with hydrochloric acid two layers are formed one of which contains the yellow chloroform solution the other the blue colouring matter in a state of siispension. The colouring matter is insoluble in chloroform and acids. It dissolves in alkalies forming a colourless or yellowish solution. TVhen this X. Repert. Pham. IS 569. PHYSIOLOGICAL CHEMISTRY. 1205 solution is neutralisecl with acids and exposed to the air a brown pre- cipitate forms. which after a few days but sometimes only after a month again becomes blue.Reduced indigo on the other hand dis- solved in alkalies becomes instantaneously blue on exposure to the air. D. I? On the Nutritive cud Assimilative P1-oce.sse.s iu Fungi. By Ph. ZOLLER.% DR. ZOLLER has made experiments with a view to throw light on the process of formation of the higher from the more simple carbonaceous assimilation products of the vegetable world. In order that the process of assimilation might be studied independent of the action of chloro- phyll and light the spores of mould mere chosen as representatives of the chloroph~-ll-fi.ee vegetable cell. As there mere no direct experi- ments pro’ing the formation of carbohydrates and more highly organised products immediately from the simplc elements the author emploxecl an organic acid--acetic-as the source of carbon in his experi- mental solntions.The object of the first set of experiments recorded mas to determine whether the spores would grow in a solution containing the ashes of plants acetic acid and ammonia. The solution prepared with freshly distilled water contained ammonium acetate potassium acetate sodium acetate calcium acetate magnesium acetate potassium superphosphate and calcium sulphate in the proportion of 1.5 p. c. or 15 grammes per litre. This solution was placed in flasks in the proportion of two litres to each. Each flask was closed with a cork through which passed two tubes one of which ended immediately below the cork while the other reached down to near the surface of the liquid. The free arms were connected with tubes filled with cotton woo1 and caustic potash.By this arrangement the access of carbonic acid from the air was prevented as also the entrance of spores i~liile at the same time it allowed of the flask being filled with air free from carbonic acid at the commencement of the experiment. Spores sowii in this liquid de-veloped and accumulated chiefly on the surface. The development was slow and comparatively insignificant due in part to the composition of ihe liquid especially as regards the phosphates partly to the concen- tration. The experiments were conducted in thc winter between October and April so that probably also the low temperature retarded the growth and development of the fungi. After a growth of six months the yield of dry fungi by eight litres of the solution was only 2.316 grammes.Analysis proved that with an ash of 6.877 p. c. the * N. Repert. Pharm. xx 513-520. 1206 ABSTRACTS OF CHEMICAL PAPERS. fungi had developed from the solution a fluid fat soluble and insoluble carbohydrates and also albuniiiioids. A second set of experiments v:as macle with slightly different and less concciilirtteil solnbions. Instead of potassium phosphate sodium phosphate was used and the concentration was only o1.e-third that of the former solution. In this set of experiments two solutions were employed of the following composition :-No. 1. No. 2. I Animoilium phosphate ........ 1.50 Sodium phosphate. ........... -1.00 Ammonium acetate .......... 1.50 3-00 Potassium , ..........0.70 0.70 Sodium ,........... 0.50 .- Calcium ,........... 1.20 1.20 Magn &urn , .......... 0.10 0.10 Calcium sulphate ............ 0-04 0.04 -5-54per litre. 6.04 per litre. r-lhe first solution was clear and had a neutral or slightly acid reaction. The second solution inis opztlesceiit and alkaline. The solutioiis n-ere placecl in flasks as before but only 1litre ~r;lsplaced in each. T'lese experiments were performed in June 1571. In a few dnj-s the spores so~im in fluid I which contained pliosphoric acid in the form of mimoiiinm phosphate had undergone caonsiclerable development and on the 4th Jdshad forinccl n thick crust ; this when dried at 100" C. weighed 1.465 gim. Tlie reaction of the solntion reniainecl the same as before.The conclition of solutioa If was qiiite different ; the spores did not show any tencleacy to ciwelop nor clicl fxsh spores sown at the eiicl of 14 clays germinate eren though the solution in the flask was fi.celF exposed to the air. In order to deter- miire whether the alkalinity of the solution was the cause of the non- de-i-elopment the liquid was aciclified with acetic acid aiid fi*eah spores sm-n; even at the elid of a meek the clevelopnient was a matter of doubt. thong11 there were slight inclications of germiiintioii. An alka-line reaction of the fluid is thus seen to lesseii or even entirely prevent the development of fungi. Even when the solution exhibited the proper reaction it was only when the phosphoric acid mas in the form or" amnioiiiuin phosphate that the development was at all rapid.Both in the first set of experiments and in solution 11 where the phosphoric acid was presented in the form of potassium phospliatc aiid sodium phosphate respectively the development -as very slow and inconsider- t-tble. From the first set of experiments after a growth of six months only XORICULTTJRAL CHElIISTRY. 120T 2.316 grm. dry material were obtained from 8 litres (0.3 gym. per litre) while from solution I after three weeks growth 1.465 grm. per litre were obtained. It thus appeared that fungi could build up the higher organic vege-table prodncts from such materials as an organic acid and ammonia in presence of water and the ashes of plants. With a ciimiiiution of 68 p. c. of the'aniount of acetic acid in solu-tion I a mass of vegetation had arisen containing 4-06p. c. nitrogen 4'7.48 p. c. carbonic acid and 5-27' p. c. ash. D. F.

ISSN:0368-1769    

DOI:10.1039/JS8712401202

出版商:RSC    

年代:1871

数据来源: RSC

摘要:

XORICULTTJRAL CHElIISTRY. 120T Agricultural Chemistry. On the QCXL~ZCL~~O~~ of Oleaghtozcs Seeds. By A X~?XTZ.* THEauthor has experimented on the germination of three I.;inds cf seeds those of the rndish cf the colza and of the poppy. The Fer-minations vere effected in filter paper kept constantly wet 01-in a.,be-;tos soaked in v-ater. With the exception of the first experiment tbc gey-minations took place in the dark. Bef'ore and after the gerininatio:i the seed ras treated with boiling water the solution ev2pomtcr1 and tlic esti>ncttreated with absolute alcohol or a mixture of dc3ha1 ar,d ether ; the author lias not been able to detect glycel-irr in the nlc3h.:lic solution. After the treataent with water the embq-o plant! is drlcd powclew:l and exhnusted x-ith ether ;the ethereal solution C?:-ZpGXte? and di*ie:l at 113".It ma5 found in all cases thai the ft.,r::; mzttcr contained in thc seeds gradually diminislied during the geniiiistioi; thus for iii;taiice 5 grams of radish-seed before germinaticn C'L) tainecl 1.750 granis of fatty matter; after two days' gerlninatioii the same qnantity contained 1.64; gi*a\MS,and after four days 0.790 gems ; at this time the cotyledons lia-3began to turn grecn. The qunn:;ties of oil obtained -sere then treated with six times their veiglit of zlcoho! which dissolved in the first instance 10.17 parts in 100 of oil PCLW two da-p' germination 0.893 in 100 and after four claj-s' gE;:eiminrttion 0.751. It Tvill be scen from this that the proportion of fatty acid had iiicwased rapidly.Analyses of the fatty acids of the colza before niid oftel. ger-milintion hare been made ; nii analyses of the fpLtty ccids bcFo1-e ger1ninn;io:i pve the folloming nuinbers :-C = 76-67 ; H = 11-78;0 = 11-55per cent. The fatty acids of the colza after ten dap' germinntion had the corn-position-C = 73.85; H = 11.31; 0 = 14.84 Fer cent. f Ann. Ch. Php (41 xxii 472-456. 1208 ABSTRACTS OF CHEMICAL PAPERS. The acids from poppy-seeds showed also the same increase in the pro-portion of oxygen and decrease in the amount of carbon. The author believes that during the germination the fatty matter is decomposed into fatty acids and glyccriu and that the latter disappears at the moment it is set at liberty. A. P.Ash Analysis 0-f the Cabbcqe. By HOFMANX.% THE author took for his investigation the winter-cabbage B~nssiccb olemeen cccephccla. He examined it at two Ekages of its development as young plants gathered in July aid as mature plants taken in the follow- ing January. The young plants averaged 20 em. in height and 4.8grams in weight. The full-grown cabbages were 40-50 em. in height aiicl their average weight after removing the lesser roots was 236 grms. Of this weight the leaves of the cabbage contributed 188 grms. and the stalk 48 grms. Analysis showed 100 parts in a fresh state to con-tain :-I Leaves. Stalk. Vatcr ................ 85 -167 20 *634 23 *458 DYJT substance .......... 14 -833 79.366 '77 *54-2 4sh .................. 4 *257 1 -820 1.456 Nitrogen ..............-688 3.064 1 *661 The composition of the ash in 100 parts was as follows :-Winter cabbage. Young plant. Leaves. Stalk. Potash ................ 30.959 31 '728 39 -415 Soda .................. 2 *015 3 *517 Liinc .................. 1'1'hO 14 -426 12.355 Magnesia .............. 4*099 2 -845 4.887 Ferric oxide ............ 1*565 8.108 1.347 Phosphoric acid . . ,.,.. 7 '750 10'093 12 .263 Sulphuric acid .......... 8 -616 6,087 9 *203 Silica.. ................ 1 -231 1.198 -845 Chlorine .............. 8 .lS9 7.640 6.805 Carbonic acid .......... 15 -175 13 *114 7 -878 1 --2.692 Band and chaxoal . . . . 6 '420 1*325 101.714 99 946 99 '840 R.W. * Versuchs-Etahionen Organ. xiii 255-262 AGRICULTURAL CHERIISTRY.1209 Water-Cult21 re Ezperimeiits with Flnx. By E. C A 11P E K HAus E x.% THE author finds that flax grows with great luxuriance in a well pre- pared saline solution and produces an abundance of seed ; it is there- fore an excellent subject for water-culture experiments. The solntion he employed contained in 1 litre :-gram. Potassium chloride .................... ,43506 Calcium nitrate ...................... 947757 Magnesium sulphate .................. ,08726 Ferric phosphate ..................... ~03300 3Ionopotassic phosphate ................ *02200 R. W. 072 Lime-nizcl Xcdt-Plcwts. By H. HOFFMAXX.+ THE author continues the account of his experiments on this subject. He maintains that "lime-plants " do not exist ; but that the plants cha- racteristic of limestone districts grow there merely from the suitability of the soil-climate as to warmth drainage be.and not in consequence of any partiality for lime. Various so-called lime-plants were grown for several years in beds of artificial soil. Growth was in a11 cases maintained and seed-formation took place to a greater or less cxtent even on soil very poor in lime. In some instances the calcareous soil had no advantage whatever over the sandstone bed. The limed soil had perhaps most advantage in the case of Lucerne. Sendtner Kerner and other botanists have described certain other plants as "lime-hating," and assert that on a calcareous soil such plants never bear seed. Experiments showed that some of these plants as Hemicirith glnbi*a and Rimen acetosella produced perfect seed on a limed bed ; while others as Alchemillcc Jissa yielded barren blossoms only.The last-named plant produced fully developed seed on a soil nearly free from lime. The author further experimented with various marine plants to ascertain if a liking for salt was the cause of their preference for the sea coast. The plants were grown in pots to some of which common salt was applied every year. Plcintcigo wuwitinm the ash of which according to Uloth contains 72 per cent. of chlorides produced perfect seeds on a soil containing no salt but where salt was supplied the development of seed was greater. Salicomia Izerbncea the chlorides of which are under normal conditions 60 per cent. of the ash and GZaun madhza grew equally well in the salted and unsalted pots. The author believes that "salt-plants" are rather plants that can endure * Versuchs-Stationen Organ. xiii 26k-269. Versuchs-Stationen Organ. xiii 269-307. 1210 BBSTRACTS OF CHEMICAL PAPERS. salt than those m-hichrequire it ; and that' the more permanent moistnre of a saline soil.is probably one reason of their choice. R.TV.

ISSN:0368-1769    

DOI:10.1039/JS8712401207

出版商:RSC    

年代:1871

数据来源: RSC

摘要:

BBSTRACTS OF CHEMICN; PAPERS. 1210 Analytica1 6:hemistry. TIr:)Deemyosition of IiIimds by ,Yodilcrjl aiLd Potassiism. By 11. sCHO C NX.* -LLZiOST dl substances inso!uble in acids such as the silicates flnodi- CZ~CS cyanides titanates cliromie iron &c. are decomposed 11-lien igliitccl with soclinm or potassium. The recluetion is best efiectecl in a six~rtll cyliiidrical iron crucible about 4centirnetres in diameter and of eqxl height ; snfficiently thin to be capable of being brought rapidly to LZ red heat when ignited in a Bunsen flame. The fragments of sodium or potassium are arranged at the bottom of the crucible and covered ii-ith the mineral intended to be decom-posed the latter having been previously wll dried ; the crucible is then covered and quickly heated to briglit redness.TVheri the action is comphtc the crucible is allowed to cool and a little water added in tlie first instance drop by drop to the fused mass. The contents are f;n,zlly treated with boiling water and the insoluhie portion is. filtered off The solution contains the alkali in combination with the chlorons portion of tlie niiiiei-al while the metals or their oxides remain upon thc filter. The latter having been well mashed are dissolved in hydro- chloric or nitric acid mcl the analysis of both solutions is completed in the usual manner. When cai-bonates are decomposed by tlie method above described the insoluble portion will of course contain a certain qnantity of free carbon ; in the case of sulphates however YO corre-sponding reduction takes place ; nevertheless when the solution is ex.uuined the whole of the snlphuric acid will be found in combina-?ion with the sodium.The following notes relate to the author's experience :-Oxtde of CIiro7xium and C7msne Iroiz.-According to the qunntity of sodium enip1o-j-ccl the chromium is either reduced to the metallic state OT partially coiivcrted into chromate. FZzco~*idc of c(ilcivi,b is not attzckcd by sodium. To separate tit&c tic Id from its combinations (titanic iron for example) after ignition v-ith sodium the hydrochloric solution is neutralised with sodium cnlbonate and the iron having been peroxidised with nitric acid tl'e solution is boiled with sodium acetate. The whole of the titniiic acid is then precipitated with the iron.The calcined pre- X J.Phami. Chim. [4],xiv 190-192. ASXLPTICAL CHEMISTRY. 1211 cipitate is tlieii digmtec! :irith concentrated hydroch'oric aci~~, which slowly but completely remores the iron. R~i@7~ide XoZybde?~z~~~z of is attacked by sodium producing a brown alkaline solution which turns green when exposed to the air. The acid solution of the deposit which becomes blue on exposure is de-colorised when neutralised with ammonia and brought to ebullition and gives on the addition of barinni chloride a white precipitate of barium moly bdate. In a similar manner minerals containing timystic ad yield an alkaline solution which furnishes on addition of excess of h-j-dro- chloric acid a v;hitc or flesh-coloured precipitate rapidly chaiiging to lemon-yellow.The precipitate is pure tungstic acid. J. w. EstlirLafio~~ of Cream of Tartar Wine. By P. CARLES.* THEauthor having recently determined the percentage of cream of tartar in several varieties of wine both by the old process of incinera- tion and by the improved method lately introduced by Berthelot pnblishes the results of his analysis in order to show how n-idely the two processes sometimes differ in results and to urge upon chemists the necessity of rejecting the old process and of adopting instead the more exact iiiethocl of Berthelot and Fleurieu. In this latter process the acid tartrate of potassium is precipitated by addiiig to n known rolume of the wine an equal volume of a mixture of alc~holand ether.The crystalliiic precipitate is collected slightly washed with alcohol redissolved in water and the tartayic acid estimated by a standard alkaline solution. The following are some of the analyses above referred to. The results calculate to one litre respectively :-! I Red wine. 1 White nine. 1 White nine. Malags. (Eordeaux.) 1 I I A. B* ---I--!-[---I_-Alcohol.. ............../ 120-0 I 110'0 I 110.0 164 -0 Cream of tartar (by cal-2.86 1 .UP aa 1 -82 3 *4 cination) ..........} Cream of tartar (Ber-2 '32 1 -45 1 -10 0'05 thelot's methocl) .... } Extract ................ 24 -50 18 50 18 -00 171-40 It will be noticed that in the first two wines the percentages of cream of tartar obtained by the two processes are very nearly identical bnt the variation is much greater in the two latter instances especially * J.Pharm. Chim. {4] xiv 188-190 1212 ABSTRACTS OF CHEMICAL PAPERS. with the sample of Afalaga in which the proportion of cream of tartar indicated by calcination is actnally greater than the above mixture of alcohol and water is capable of dissolving. In the opinion of the author this anomalous result may be accounted for by the natural presence in the wine of organic potassium salts or perhaps from the addition of molasses or some similar product rich in salts of this nature ; at all events it is obvious that the old process is liable to fre- quent sources of erroi, especially mhen sweet mines are examined; it is better therefore to reject it altogether and to conduct the analysis by direct estimation of the cream of tartar.J. W. Dry Process tJLe Estiilzatiorb of Silicon in Cast hou 'IVyozcght I~*on CLiZCZ Xteel. By H. BOUSSINGAULT.* THEprocess generally adopted for the determination of silicon in iron and steel is not sufficiently trustworthy in its results when the pro- portion of silicon contained in the iron is extremely small and when consequently tlie weiglit of silica obtained cannot possibly exceed a fern milligrams. In fact the question not nnfrequeiitly arises whether the silica obtained really existed in the iron as silicoii or wliether it was derived fi-on1 the vessels 01%reagents employed in the operation. It became necessarr therefore in order to resolve definitely the questions which the author hacl undertaken that some more satisfactory process for the estimation of silicon should be devised and after inany trials the follon-ing clry metliod was decided upon experience having shown that it mas cntircly free fi-orn those particular sources of error which in the old pi-ocess are so very liable to falsify the results.The iron at red heat is submitted successively to the action of two gases. 1,Atmospheric air to oxiciise tlie iron carbon and silicon. 2. Dq hydrochloric acid gas to convert andl volatilize the metal in the state of chloride. The operation is effected consequently in two stages ; aiicl this is the more necessary inasniuch as it was found that when the iron is oxidised aid coiiverttd into chloride simultanconslg- by passing over the heated metal a current of hydrochloric acid gas mixed with air the chlorination of tlie iron takes place nioi*e rapidly than the oxida- tion and the silicon in combination passes into the state of chloride before it is oxidised aid the whole or at least a considerable portion is in this way lost.The analysis is conductecl in the following manner :-About one gram of the metal in a tolerably fine state of division is placed in a small platinum boat and carefnlly weighed. The whole is * &in. Chim. Phys. [4] xxii 45'7-472. ANALYTICAL CHEJIISTRY. 1213 then introduced into a muffle and heated in a furnace to the tempera- ture usually employed in cupellation. In two or three hours the iron will be found to be completely oxidised and to have increased about 35 or 36 per cent.in weight; this indicates the composition 4Fe0 Fe,O, in which 1 gram of metal would require 0.53 gram of oxygen. The boat and its contents are next placed in a porcelain tube heated to redness and a slow and continuous current of dry hydrochloric acid gas passed over them. The iron is thus converted into chloride and volatilised towards the cooler portion of the tube while the silica not being affected by the gas remains untouched in the platinum vesscl. When the operation is judged to be complete the latter is withdrawn placed in a glass tube and re-weighed ; the increase in weight is due to silica. The silica obtained in this manner is perfectly white in an ex- tremely fine state of division geiierally preserving the form of the oxide as withclrawn from the muffle.If this silica for example was derived from an iron turning coiled spirally the silica will represent this spiral ; while so great is its tenuity that it may be compared to the ash of a linen thread which has been carefully burnt in a still atmosphere. It is obvious therefore that it is important to moderate the rapidity of the current of gas during the operation lest the silica or any portion of it be mechanically carried away. The purity of the silica is ascertained by pouring into the boat a few drops of hydrofluoric acid and a drop of sulphuric acid ; on warming the whole should volatilize. In every estimation made by the author upon malleable iron and steel the silica disappeared entirely by this treatment but cast-iron not unfrequently yielded a silica containing a small quantity of earthy matter resulting probably from an admix- ture of scoria with the melted metal ; it was certainly not due to the presence of alumina inasmuch as aluminium is never found in cast- iron the author having even failed to detect it in Wootz steel not-withstanding that Faraday’s analyses tended in the opposite direction.Considering that a certain proportion of phosphorus was contained in many of the samples of iron and steel examined by the author it mas somewhat surprising that no indications of ferric phosphate or phosphoric acid should be found in any of the silica collected by this process ; on the contrary it was perfectly pure volatilizing entirely under the influence of hydrofluoric acid.It became necessary there- fore to institute a more careful examination and to ascertain exactly the manner in which the phosphorus was eliminated. To this end some ferric phosphate was prepared in the ordinary way mixed with a proportion of oxide and placed in the same platinum vessel in which the previous analyses had been conducted; the tube having been brought to a bright-red heat dry hydrochloric acid gas was passed VOL XXIV. 4 M 1214 ABSTRBCTS OF CHElIICAL PAPERS. over it for two hours. At the expiration of this time the boat ap- peared empty ; it contained nevertheless a few vitreous globules which proved on examination to consist of sodium phosphate mixed with a little silica the alkaline phosphate being doubtless a portion of that with which the iron was precipitated and which had escaped washing.As far as regards the phosplioric acid combined with iron the whole was volatilized and found in the acid solution of iron con- tained in the flask at the extremity of the porcelain tube. In order to avoid the error introduced by the employmeiit of artificial ferric phos- phate some finely-powdered vivinnite TVRS operated upon in tlie manner already described. In an hour the vivianite had disappeared with the exception of a little earthy gangue which contained neither iron nor phosphoric acid. As a deduction from the foregoing experiments it may be confidently stated that when oxide of iron containing a small quantity of phos-phoric acid is submitted to a current of liydrochloric acid gas at a temperature sufficiently high to isolate thc silica tlie whole of tlie phosphoric acid is eliminated at the same time as tlie metal.The following table shows the amount of silicon contained in various samples of iron and steel as estimated by the dry method. The quantity of iron operated upon was one gram. Swedish iron ............................ 0.00164 Puddled iron from Unieux ................ 0*00093 Bar iron ................................ 0' 00190 Iron wire ................................ 0.00230 Cast steel.. .............................. O*OOOiO Cast and cemented steel .................. 0.00440 Chincse steel ............................0.000'70 Soft steel.. .............................. 0.00093 Cast steel for carriage springs. ............. 0.00094 , for watch springs ............ 0.00044 Cast steel Krupp ........................ 0.00440 Tungstcn steel .......................... 0.00093 Wootz steel.. ............................ 0.000GB Grey cast iron from Ria .................. 0.0 140 White cast iron from Ria ................ 0-0034 J. W. A New i12ethod of Estimatixg Ziizc. By HUGO TAMJI.* WHEN a solution of zinc in any mineral or volatile organic :Lcid is supersaturated with ammonia then slightly acidulated with 1,ydro-* Chem. News xxiv 148-150. AShLYTlChL CHEMISTKY. 1215 chloric acid a double chloride of zinc and ammonium is produced.The addition of hydro-disodic phosphate to the solution thus obtained occa- sions a precipitate of zinc phosphate which by subsequent heating in the liquid combines with ammonium phosphate thereby forming ammonio-zinc phosphat e. The author recommends this reaction for the separation and estima- tion of zinc instead of the ordinary but very troublesome method of precipitating the zinc as sulphide. If great accuracy is required the liquor should be left in a m-arm place for ten or twelve hours to ensure the complete precipitation of the zinc ; but for ordinary assay purposes it is sufficient to allow the precipitate to rest for an hour. The ammonio-zinc phosphate dried at 100" has the constant formula Zn(NH1)PO1. It is slightly soluble in water and is converted by ignition into zinc phosphate with loss of zinc.When formed as described it retains sodium phosphate and ammonium chloride with some force and several successii-e washings are required to free it from these salts. Directions are given for estimating zinc in syelter blendes ccclnnzines and bmss. The general plan is as follows :-First remove from the respective solutions all substances precipitable by sodium phosphate in a neutral or alkaline solution ; saturate with ammonia ;acidulate slightly with hydrochloric acid ; add sodium phosphate in excess ;heat near to boiling point ; allow the liquid to remain in a warm place some time ; collect ; wash well with water ; and dry at 100" C. Most amlvoiiiacal solutions of oxides mixed with an excess of ammonia are also precipitated by sodium phosphate and when the mixture is boiled the corresponding ammonio-phosphate crystallises.Ainmoizio-iiia?zga.lLeseyl~osphateforms beautiful flesh-coloured crystal- line silky scales. Amnzonio-cobalt phosphate forms crystals of an indifferent pink colour which when calcined at a low temperature change to a deep blue colour without losing the shape of the original crystals. Am,no?Lio-fewozus phosphate forms silky crystalline scales resembling in colour certain greenish micas. An examination of the ammonio-zinc phosphate has led the author to conclude that ths equivalent of zinc is 32-75. A. T. On the Volumeti-icnl DeteyinincLtion of Zinc by Soclic Xulp7~icle. By 0. SCHOTT.~ THE author made some comparative experiments (1)with lead paper prepared according to Fresenius's directions by coating paper with Jk Zeitschr.Anal. Chem. x 209. 121G ABSTRACTS OF CHEMICAL PAPERS. plumbic carbonate ; (2) with cobalt-paper prepared according to the directions of A. Deuss ;* and (3) with a paper known in comnierce as polka-paper i.e. ordinary glazed paper used for visiting cards covered with white lead; he gives tlie preference to the latter. The ammg- niacal solution of zinc is placed in a beaker diluted to half a litre and soclic sulphide is run in as usual. The end of the reaction is ascertained by dipping into the liquid a glass tube 25 centim. in length and 7 mm. in diameter wherewith a column of the liquid can be taken up by placing the thumb on the upper end of the tube.A piece of the glazed lead-paper is next pressed geiitly against the lower end of the tube held in a slightly slanting position over the beaker and the liquid is allowed to run out slowly OVC~the inclined card. The end of the reaction is indicated by the formation of a brown ring whicli appears where the liquid was brought in contact with the lead paper. The glass tube the end of which should be first groand and then smoothed in the Atmic should not be pessed too had against the paper in order to avoid any action of the siispencled zinc su1ph;de upon the white led. The ai~thor c1:iiiiis slight advantage for his indicator over that propoFcc1 by EIrCFeiLus and a st ill more decided advantage over Deuss’s iridicator.w. v. ~:l.oi:iiiie-2i.citi~~, 11s CL Test -for PlLemd mcl Allied Xzcbstamas. By 11. LANDOLT.? INanalysing the water of a well situated in tlie neighbourhood of a gas work the author mas induced to search for phenol. The methods already kiiown for cletectifig thk bdy are only of a moderate degree of delicacy. The bluish-violet coloration with chloride of iron is but slightly sensitive and is not always to be relied upon since minute quantities of free acids and even neutral salts as potassium sulphate sodium sulphate &c. interfere with the reaction. The most satisfactory indications are afforded by bromine-water M liich gives with a dilute solution of phenol an immediate yello-\.vish bulky precipitate of tribromopheiiol.An excess of bromhe-water must be employed. By this reaction 1part pf phenol in 43,700 parts of water may be easiig detected. The limit to tlie chloride of iron reactioii is 1in 2,100 of water. The smell of phenol cannot be detected in cz solution coiitaining less than 1part in 2,800 of water. The author shows that the piwipitation by bromine-\\ ater may be employed for the quantitative determination of phenol. The same reaction will show the phenol present in urine. 500 C.C. wine serve for its detection. T. E. T. ANALYTICAL CHEMISTRY. 12 7 On the Methods for Detemnining the Amount of Allcaloiids in Peruvian Bark. By C. SCHACHT.* THEauthor discusses at some length the respective advantages and disadvantages of the several methods for determining the alkalo'ids in Peruvian bark which have been recommended in various periodicals as well as in the German and English pharmacopmas published during the last few years.The results which he obtained by these various methods differed widely (from -95 p. c. to 8-67 p. c. of cinchona bases). Schacht fixed at last upon Hager's method,? which con-sists in converting the bases into picrates decomposing with potassic hydrate and extracting the free bases from the dried residue bymeans of absolute alcohol. The pulverised bark is first exhausted with water containing sulphuric acid and the acid extract is precipitated by means of picric acid. 10 grms. of bark when so treated by the author gave -6270 grm. of picrates ; that is less than what Hager obtained.Instead of weighing the picrates as such they may be decomposed by means of potassic hydrate. The mixture of potassic picrate and alkalo'ids is then evaporated to dryness and exhausted while warm with chloroform (free from alcohol) whereby a colourless filtrate is obtained ; or it may be shaken up repeatedly with chloroform the clear layer removed with a pipette the chloroform distilled off the residue taken up with water containing a little hydrochloric acid and the bases pre- cipitated with sodic hydrate. 10 grms. gave -220 grm. of bases equal to 2.2 per cent. Although this method was found to be pre- eminently quick and neat the author was never able to obtain the quantity of picrates which Hager obtained. By substituting amylic alcohol for absolute alcohol whilst proceeding in every other respect in the same manner he obtained more favourable results- 10 grms.of bark yielded 2.54 per cent. of bases. In a second experi- ment in which the picrates were washed by decantation decomposed by means of excess of potash-solution and shaken up at once with amylic alcohol he obtained 2.4 per cent. of bases. By modifying the process so as to precipitate the bark-extract (obtained by boiling the finely macerated bark with solution of potash and sulphuric acid) at once with excess of solution of potash without previously precipitating the bases as picrates and extracting with amylic alcohol he obtained 3.16 per cent. of bases. In his subsequent experiments Schacht treated an aliquot part (50 c.c.) of the filtrate directly with 2.5 C.C.of potash of sp. gr. 1.3 and then with 25 C.C. of amylic alcohol of boiling point 132" C. The layer containing the alkaloids was drawn off with a pipette and the extraction with amylic alcohol repeated three times over. In this manner he obtained in two experiments 3.16 and 3.12 * Arch. Phaxm. [2] cxlvii 97-106. t Pharm. CentralhaUe 1869 p. 146. 4~2 ABSTRACTS OF CHEMICAL PAPERS. per cent. of bases. By allowing the mixture of 50 C.C. of bark extract to which 2.5 C.C. of potash-solution and 25 C.C.of amylic alcohol had been added to stand for twelve hours before pipetting off and by shaking up three times more with amylic alcohol the author obtained in three experiments 3-50 3.52 and 3.82 p.c. of bases. In the last experiment the alkalo'ids were found to be contaminated with a little colouring matter carried down by precipitating with too strong a soda ley. Schacht usually prepared an extract from 10 grms. of bark by boiling with solution of potash and sulphuric acid made it up in a narrow cylinder to 110 c.c. and allowed it to subside sufficiently to obtain 50 C.C. of clear supernatant fluid which could be filtered rapidly into a flask. Caustic potash is added and without any delay amylic alcohol and the whole well shaken up. The liquid separates speedily into two layers. The upper one being very slightly coloured is trtms- ferred by means of a pipette to a porcelain dish wherein the por- tion of reddish-brown aqueous liquid subsides before it is filtered through a small filter moistened with amylic alcohol into the distilling flask.The washing with amylic alcohol is effected in like manner three times over. The amylic alcohol is next distilled off; the residue transferred from the flask to a small porcelain dish by rinsing with a little amylic alcohol (absolute alcohol has a tendency to creep over the dish and to cause a loss) and then evaporated to dryness. It is next compZeteZy taken up 11-ithwater and a few drops of dilute sulphuric acid of sp. gr. 1.16 and filtered cold through a small filter moistened with water. The precipitation of the bases is effected by means of uerp dilute caustic scda-solution (1part of soda of sp. gr. 1.3 to 9 parts of wator) and continuous stirring to prevent the baliing of the precipi- tate.After standing quietly for some hours it may be filtered through a weighed filter and washed cautiously with very little water Addition of glycerin to the sulphuric acid extract of the bark did not yield favourable results. By dispensing however with the pri-mary operation of treating the macerated bark with potash in order to disintegrate the fibrous tissues employing a mixture of 2 grms. of hydrochloric acid of sp. gr. 1.12 together with 50 C.C.of glycerin and 100 grms. of distilled wTter and digesting the bark for 12 hours in the cold a clear filtr.de may be obtained which not only passes freely through tlie filter but leaves also a residue which can be wnsllcd out very readily. On evaporating the whole the liquid remains invariably clear and when treated with caustic potash and amylic :~lcc;iiol,sepamtes after some time into two lajers which can readily be icmnved from each other and washed.3.41 per cent. and 3.72 per cent. of cinchona bases were obtained in this manner. It is however inipossibk to precipitate the bases as picrates on account of their solnliiliiy in h~diwchloric acid. w. v. TECIINICAL CHEMISTRY. 1219 072 a Metld of Determining the Gases resulting fsom the Explosion of Nitroylycerin. By L. L.HOTE.* TOexplode nitroglycerin the author introduces a small quantity of it from 5 to 6 milligrams contained in small bulbs of thin glass into a Mitscherlich's eudiometer and then passes into the eudiometer a small quantity of electrolytic gas ; on passing the electric spark the explosion of this gas cames the detonation of the nitroglycerin.The gases formed cause the mercury to turn brown on the surface. One gram. of r~itroglycerin yields 284 cubic centimetres of gas at 0" C. and 760 mm. which contains 45.72 p.c. COa,20.36 NO and 33.92 N. This method of explosion may be applied to the study of the gases furnished by other explosive compounds. Potassium picrate detonates easily under the conditions and yields an inflammable gas containing an appreciable proprtion of cyanogen. A. P.

ISSN:0368-1769    

DOI:10.1039/JS8712401210

出版商:RSC    

年代:1871

数据来源: RSC

摘要:

TECIINICAL CHEMISTRY. 1219 Technical Chemistry. A New Method for the Separation and Utilisation of Phosphoric Acid in Iron Ores. By JULIUS JAC0BI.t TEEauthor’s process patented in Bavaria in October 1869 consists in treating iron ores containing phosphoric acid with sulphurous acid and water. The solution of the acid phosphate thus formed is evaporated and treated with quick lime and finally used as a manure. The sul- phurous acid driven off in the evaporation may be collected and again used. The author omits to mention the basic constituent of the insoluble phosphate contained in the ores to be treated in this way. C. G. On a New Process of Eztracting Gold and Silver from their Ores. By L. E. RIVOT. SHORTLY before his death Rivot had been engnged in elaborating a process of treating Californian gold and silver-ores.This treatise being left in an unfinished state was completed by Moissenet and published in the Annales des Mines 4 livraison de 1870 p. 1-104. Rivot proposed to deal only with silver- and gold-bearing veins not with gold occurring in soapstone and removed by washing. The gold veins to be worked may consist of quartz or of quartz interspersed with sulphides and arsenides. The veins of silver ores occur in slate quartz * Uompt. rend. lxxiii 1013. t Dingl. polyt. Journ. cci 145. $ Berg. et Huttenm. Zeitung 1871 So. 32. 1220 -4BSTRACTS OF CHEMICAL PAPERS. heavy spar and calc-spar containing the silver in combination with sulphur with arsenic and sulphur or with antimony and sulphur and are accompanied by varying quantities of blende galena iron pyrites arsenical pyrites bournonite fahlore grey antimony ore &c.The veins at Austin 15 to 20 centim. in thickness contain from 3 to 12 p. c. of silver frequently also gold especially the pyritical and arsenical veins. The processes employed at the present time in America for the extraction of gold and silver from mineral veins are (1) The process of amalgamation in heaps ; (2) amalgamation at 100" C. in copper pans ; (3) direct amalgamation in pans by the aid of water a process which is inexpensive as it can be effected without material loss of mercnry but which does not yield so much gold and silver ; and (4) amalgamation preceded by the roastiiig of refractory ores with common salt.The yield of gold and silver from pyritical ores does not exceed 65 p. c. of the assay which in itself is open to losses. According to many synthetical experimects the loss is greater in assays of richer than of poor ores amounting always to more than 30 p. c. and with fahlore and ores containing arsenical pyrites to more than 50 p. c. The loss incurred when working on a large scale is less than in laboratory assays. The difference between the yield on the large scale and tlie percentage indicated by the assay may exceed 30 p. c. when the metallurgical method is quite perfect ; but as the American methods are far from perfect the difference is still greater. Rivot's process which was worked in California gave good results and is said to be applicable to ores of every kind giving at small cost nearly the whole of the metal.It consists in roasting the ores with steam before amalgamation. Ores containing arsenic and antimony require an admixture of roasted iron pyrites. The experiments* made by Regnault and Cumenge on the roasting of sulphides with simultaneous exposure to Superheated steam are quoted and the experience gained by Rivot in California and Mexico renders it apparent that superheated steam may be employed with advantage in extracting gold and silver from all ores the action being somewhat sluggish in the case ofpyrites and pyi-itical ores. It may be accelerated however by an admixture of oxidizing agents such as ferric oxide roasted pyrites and black oxidt of manganese whereby the extraction of the gold and silver is ren dered more effective.The process was found imperfect only in tht case of copper ores contaiiiing msenic and antimony on account c these deleterious elements accumulating in tne residues from the ama! garnation process and because the copper had to be given up as lost. The author next describes in detail the different operations neces- sary and the apparatus required in the many laboratory experiments * The labours of Patera and Marcus but especially those of Plattner appear to have been u&iionn to tlie coinpilel. of Kivot's llotes.-FV. v. which he made as well as those required to carry out the process on the large zcale viz. :-1. Roasting of the pyrites in heaps or in reverberatory furnaces in such a manner as to almost completely oxidize the metallic sulphides and to reduce the formation of sulphates to a minimum.2. Pulverizing and mixing of the roasted pyrites with the ores. 3. Roasting of the mixed mass with superheated steam in a revolving furnace with exclusion of air. 4.Amalgamation in vertical mills which are capable of a great out- turn and of working wet or dry as may be desired and which divide the mercury well and effect a more speedy and complete amalgamation owing to the pressure of the millstones. 5. Separation of the mercury from the residues. 6. Squeezing of the mercury through coarse linen bags or wooden cylinders. 7. Distillation of the amalgam in cast-iron tubes provided with receivers cooled by water.8. Smelting of the metals recovered by amalgamation in blacklead crucibles and casting in iron moulds. w. v. 012 Cobalt Ultrainariiie. By W. ST E IN.* TOprove still further (comp. p. 166 and 860) that cobalt ultramarine is a midzire of aluminic silicate with 4Co0,Co20a,the author examined a sample of cdbalt ultramarine which was entirely free from arsenic and coritniiied only traces of phoLphoric acid. Tlie existence of a higher oxide of cobalt could be established only 1U.y heating in a curreid. of hydrogen gas at the temperature of a i\f:tscherlich’s furnace. A sample of previously ignited ultramar~iie lost 6*;8 p. c. of oxygen and left a black residue. By fusing in a silver crucible nith pure caustic potish and extraction with water the cobalt oxide (prubably in com-binstion with potash as cobaltic acid Co,05) can be readily separated from the alumina and silica and may be freed from potash in the usual manner and weighed as metallic cobalt.The percentage composition of the ultramarine was thus found to be-silica 4.00 ; alumina 68.45 ; cobalt 20.80 oxygen 6.75. The oxide ~coo.co203, requires 6.58 thyt of Co0.Co2037.52 of oxygen hence it contained about four parts of the former to one of the latter oxide i e. an oxide such as is obtained by igniting cobaltous oxide with free access of air. A further proof for the theory that cobalt ultramarine is a mere molecular mixtyre was furnished by a synthetical experiment. Ordinary black cobaltic c xide was intimately mixed with pure alumina and the mixture ignited * Dingl.poljt. J. cci 420. 1222 ABSTRACTS OF CHEJiICAL PAPERS. n hereby blue ultramarine mas obtained. In order to succeed it is neces- sary that the alumina should be perfectly loose the mixture made as intimate as possible and that a vivid red heat should be applied for a sufficient length of time. w. v. 011,J. Schweiger's Neiv Painting G~OZC~ZC~ jut* Stereochroniic Pictrwes. By DR. FEICHTI?;GEI:.* THE ground recommended by Pettenkofer (cement and sand) possesses all the qualities required such as regular abso~ptive power durability &c. but not being white is not regarded favoui-ably by painters. Schweiger's ground was devised in order to obviate this inconvenience.It consists of carbonate of lime cement and quartz sand mixed with a solution of pofc(s12water-glass of which so much is ad(1ed that the mass can be laid on with a brush and in greater quantity the more porous the ground is. The carbonate of lime may he either chalk or marble powder ; the quartz-sand must be clean and well washed and of even grain. The mass of carbonate of lime anti quai-tz-sand together should be 3-4 times the T-olume of the cement. C. H. G. Process for P?*epari?agAiitlwitceiie fi*om Coal-far Pitch and Pt*epai.atiou and H. Gullz-of Dye-stufs from Am%*ciceiLe. By J. BRONNER HOW.? THEpitch is distilled in gas-retorts with help of superheated steam. Anthracene is treated with twice its weight of nitric acid of 1.3-1.5 sp.gr. cold or warm. The new product is washed by water and dis- solved with or without purification in the required quantity of warm snlphuric acid and treated with the necessary amount of mercurous or mercuric nitrate. After the colouring matter has formed it is taken up by some solvent such as cold or boiling water or alcohol ether carbon sulphide alum solution dilutc alkalies &c. ; tlie solution is evaporated or precipitated by acids and purified by crys tsllisat ion from solution or by sublimation For the preparation of alizarin from antliracene the authors follow ail improved process. The anthracene is converted into oxanthracene which is then purified by sublimation. The latter is converted into alizarin by heating to 200"-250" C.with twice its weight of concen-trated potash- or soda.ley and after the termiqxiion of the reaction is precipitated from the solution of tlie mass by addition of an acid. The alizarin is then washed. C. H. G. * Dingl. polgt. J.,cci 541-544. t Dingl. polyt. J. cci 545. TECHNICAL CHEMISTRY. 1223 On the Iujfzience of the Xecondary Extimt Formation in Fetwzenting Mashes. By W. SCHULTZE. (Dingl Polyt. J. cci 438-4451.) Action of Chumate of Potash on Thickening Materials.% WHENa mixture of gum dextrin &c. with chromate of potash is used for discharging colours it sometimes happens that washing will not leave the pattern white. This arises from the fact trhat such amixture when exposed to light becomes partly insoluble and consequently can- not be entirely removed from the cloth.The remedy is to work in rooms having yellow glass windows. C. H. G. OILRo.ie-naytludeize or JIcydala Red. (Dingl. Polyt. J. cci 468.)-Directions for dyeing silk with this colour. A Fast Xu4 1Lur. Clark. (Dingl. Polyt. J. cci 468.) On the Applicatiom of Disinfecting Pozodet*s containing Carbolic Acid. (Diiigl. Polyt. J. cci 470.) On CertaiiL Applications of Bisdphicle of CYarEon. By H. HAEDI c KE. (Dingl. Polyt. J. cci 427-432.) A Coloriiiieter. By H. RHEINE CK.? Two thick glass plates touching at one end and separated at the other by a platinum wire. The lower plate is engraved with a scale. The intensity of colour in a solution is measured by introducing a few drops of liquid between the plates and observing at what point of the scale the lines below become invisible through the liquid.It was devised for measuring the opacity of milk. C. H. G. Emom and Xpence’s Processfoi. Wool Washing and Dyeiizg. By C. BOLLE.~ TIIE wool is thoroughly mixed with the washing solutions and dye- liquors by blowing compressed air through the vats in which the operations are performed. The advantages of the process are saving of labour completeness of the washing and saving of chemicals and dye stuff. Working details are given. C. H. G. * Dingl. polyt. J. cci 46’7. .t Dingl. polyt. J.,cci 433. Dingl. polyt. J.,435-438. 1224 ABSTRACTS OF UHEJIICAL PAPERS. L lVute ~OF the Comyosition qi Freiich mztl other Beers Ccmsmaed qh Paris.By E. MONIER.* THESEbeers may be divided into two clesse- first bitter beers or those of the north of France England and Belgium ; second sweet beers principally from Germany ad Austria. Compositioiz i?z 1,000 gmms. -Destrin Alcohol Glucose. albuminoid Salts. From by rol. (grams.) ubstances,Bc (grams.) (C.C.) (grallX3.) (-North France ........ ........ 40 .0 32 .5 '7 *03 4 '8 31 37 31 -0 1 .6 2.1 ........ 36 0 6 *6 33.1 2 .2 ..... 60.5 8 .25 39 *35 2 '8 )) ...... .............. 56 '0 56 *25 8 .3 15 *1 40 *1 58 -4 2 65 2 -52 ................ 56 *5 16 2 56.45 2.4 ................ 52 *5 11 0 55 -3 2 '3 ............ 53.75 47 *0 13 -55 16 -3 51 *5 45 *o 2 -2 2.65 *. 45 .o 14 -35 51 *3 2 05 JY ' JJ .. 447 *5 11 60 43 *4 2 *0 When the large quantities of glucose and dextrin found in the German beers have been obtained by the action of diastase upon starch they have no hurtful effect upon the human system.These substances however are oftener produccd by the action of sulphuric acid upon starch in which case the beer is more difficult of digestion producing thirst and often provoking bronchial affections. In beers to which glncose has been added the amount of sulphates sometimes rises to 1.5 grams per litre the quantity present in natural beers being from 4 to 20 centigrams only. J. B. * Compt. rend. lxxiii 801.

ISSN:0368-1769    

DOI:10.1039/JS8712401219

出版商:RSC    

年代:1871

数据来源: RSC

摘要:

INDEX OF AUTHORS. A. Ador E. and v. Meyer constitution of twice-substituted benzenes 825. -sulphanilic acid 377. -transformation of bromoben-zoic into isophthalic acid 367. -and Oppenheim sulphobenzoic acid 131. Aguiar A. et A. G. Bayer naphtliaz- arin 366 698. -new solvent for indigotin 268. Allen A. H. use of potassium ferrocy- anicle as a test for cobalt nickel and manganese 756. A1 sberg &I. manufacture of vermil-lion 170. Alvergn iat luminous tubes with exte- rior electrodes 1141. Amagat E. H. Tariations in the ex- pansion-coefficient of gases 475. -compressibility aiid dilatation of gases 874. Am a to D. glucosophosphoric acid 924. -and Campisi. See Campisi. Ammann H. action of nascent hydro- gen on bitter almond oil 384.-and Kohlrausch. See Kohl-rausch. Andrews T. action of heat on bro-mine 993. -dichroism of the vapour of iodine 993. Angerstein E. reduction of dibrom-aniidobenzoic acid 368. Angstrom A. J. spectra of simple gaserp 991. Armstrong H. E. action of nitric acid on the dichlorophenolsdphonic acids 1112. -formation of sulpho-acids,173. -action of sulphuric acid on natural alkaloLds,56. Arzruni A. sulphur-ureas 570. As c h er M. dioxybenzoic acid 82’7. -and Me yer benzene-sulphonic acid 554. VOL. XXIV. B. Baehr-Predari. See Petersen. Baerle use of neutral water-glass for wool-n ashing 860. Baeyer A. a new class of colouring matters 833. -dehydration and its importance to vegetable life aud feimentation 331.-gallein 699. -me11 tic acid 372. -phenol colours 910. Ballo M. hydrate of carbon bisul-plzide 488. Ban no TV A. isomeric potassium cya-nrtte 391. Ban now E. preparation of guanidine 263. Bard y C. methyldiphenylamine 1197. Barth L. preparation of protocate-chuic acid from osybenzoic acid and constitution of the former body 829. -transformations of phenol 122. -and C. Senhofer disulphobenzoic acid and a new dioxybenzoic acid 828. Battershall J. the aldehyde of the naphthalene group 1057. Bauclrimont A. intimate action of substances which assist the decompo- sition of potassiuni chlorate 1151. B au e r A. alloy of lead and platinum 202. Baumhauer H. constitution of rosani-line 835. Bayer A.G.,on a homologue of cyane-thine 39’7. -and Aguiar. See Aguiar. -I(.J.,indium 664. B e ch erh inn C. monacetorosaniline 1062. EBchamp A. carbonic and alcoholic fermentation of sodium acetate and barium oxalate 511. -iicw method of incinerating animal and yegetable substances ; its applica- tiou to the estimation of the mineral constituents of yeast 855. Becquerel M. action of electricity on the coloured tissues of plants ’796. 4N 1226 INDEX OF AUTHORS. Be c q uerel M. decoloration of flowers and leaws bj electric discharges 796 883. -transport of salts by the electric clisc’rargc 882. Beet L. W., rneasurement of the internal reaisrance of roltaic batterics b~ the coiripensntion nietliod 6 L9.Belir A iet~;1plitl~i~ l-ctlLplcnc 118. Beilstcin :ind Iiitlilbcrg isoineric to- 1) lcne-cliamines 365. -isoiuerisiii in the benzene se-ries 680. -mono-and cli-nitronaplitha-lene 695. -a new nitro-orthotoluidine 563. Bell C. A. composition of the ferric iodates 108. -J. L. chemical plienomena of iron smelting 446. 3 en der C. a~~eto~ie-eul~~lionic acid 702. -cenieiits 1097. -Iipdrate of magnesinili OSTC~~O-ride 1168. Bernard Cl. actioii of carbonic oxide 011 bloocl-globules h39. Bcrtlielot >I.,action of pliciiol on am-monia 123. -clianp of liressurc and r,)liiiiic pro-ducetl bp clieiiiical combinaiim. 975. -iiev- contributions to the Iiistory of carbon 1023. -force of detonating gaseous mis- tures 300.-heat evolved in the formation of organic dcriratires of nitric acid 872. -natural nitrification 1000. -new test for alcohol 1093. -thernral effects of the combination of alcohols with bases 975. -tlierino-c2ieniical researches on the amiuoniacal salts 1129. -thernio-chemical researches in the cyanogeii series 982. Bilt z C. useles>ness of ammonio-fer-rous sulpliate for the estiination of chlorine 753. Birnbauni K action of eulphurous acid on platinic cliloride 891. Bi schoff C. action of cliloriiie on hy- clrocyanic acid in alcoliolic solution 136. -comparative pyrometric valuation of kaolins 450. -fire-cla-s 960. -improvement of refractory clays 8G8. -manufActure of dinas-stone (quartz- b~ichs),1099.Bizio G. mineral waters of the Euga-ninn Dills Padua 1022. Bleckrode L. curious property of gun-cotton 171. B lj uducho J. preparation of methy- lene iodide 1027. Blochmann R. on the calcium spec-trum 1149. Bloinstrand C. W. conjugated com-pounds of pentatoniic nitrogen 483. -nietallamuioniau or metallamines, 1so. Blo xa 111 T. clean and unclean surfaces in ~oltuic action 990. Biit t g cl”s disinfecting dressing for stinking R-ounds 769. Boettger R. and Th. Pet,ersen ni- trogen colripounds of anthraquinone 531. -note on artificial alizarin 1204. Bo lilig E. analysis of chrome greens 442. -tiem vol.;ulletric method for deter-iiiiiiiiig suiphuric acid baryta cldo-i*ii?e broniine aiicl iodine 4%. B01111 C. apparatus for the conrenient arrangeiiiciit of certain combinations of gnlrirnic elenients 834.-011 the ice calorimeter 61.3. Boillot A method of purifying fats 459. Boitcrin v. Loiseau “sucrate of hy-drocwbonate ” of lime applied to the piirification of cane-juice 170. Bolns T. distillation and boiling point of glycerin 84. -and C. E. Groves tetrabromide of cabon 773. Bolle C. wool washing and drying 1232. Bolley P. formation of aromatic-nitro-com1)ounds in alcoholic solution 222. Borgmann E. See Graebe. Bob b clia J. apparent expaiision of mercury 483. B ouchardat G. artificial production of clulcite 810. -preseuce of milk-sugar in a vege-table juice 915. Bourgoin E. action of hydrogen on nitric acid 885. -chctrolysis of potassium acetate 917.-and Bouchat the purgative prin- ciples of Alesaiidrian senna 1068. Boussingault M. dry process for the estimation of silicon in cast and N ronglit iron 1212. -freczing of water 7%. Bout i gn J C. crenic and apocrenic acids in mineral wateru 921. Bowman II.,supposed native copper 115. INDEX OF AUTHORS. 1227 Br aun sc hw e iger J.R.,action of moist ultramarine on silver 970. -rcd green and blue fire 970. Brcscius E. ferric liTdrate 427. B r ez i n a on tlie crystalline form of lead diiliimate and the law of tlie trigonnl pyraiiiids in circular-i>olarising sub- stances 1180. Briihl J. W.,cleriratires of piperi-dine 1063. Brockbauk IV. effects of cold upon the strength of iron 167.Br6nn er and Gut zh o w preparation of antliraceiie from cod-tar pitch and of cljeatuff s fYom aiithracene 1222. Briicke E. some experiments n-ith the Po-cullecl pcptones 410. B r un n e r A combiiiation of the Bes- senlei. and Martin processes 601. Bru s 11 G. the Franklin meteorite 329. -G F. gahnite 115. -ralstonite 1c". Buchanaii J. F. formation and de-composition of chlorinated acids 551. -lecture apparatus for specific gravi- ties 482. Buchner L. A. formation of trans-parelit cubes of sodium chloride 311. Buff 11. L. amiclosulpliotoluylenic acids 253. -atomic volume of ally1 alcohol 905. -cresols of coal-tar 531. B a 110 X,hydrate of carbon bisulphide 196. Bunge. N. electrolysis of chemical com- paunds 186.Buiis en calorimetric researches 180. -on the ice-calorimeter 643. Burden F. boiling points of organic bodies 483. Busse. See Henneberg. Buttlcrow A chemical structure of some non -saturated hyJrocarbons 214. -properties of trimethylcarbinol 1033. Byasson H. on petroleum 1024. -ph~siological action of chloral hydrate 748. C. Calvert F. C. coniparatirc influence of Tarious substances in preventiag tlie decomposition of org:inic bodies 1079. -cstiniatioii of sulphur in coal and coke 1089. __ oxidation of iron 198. Campani G. detection of iodine in the form of metallic iodides 1084. -manganese in the blood 1074. -production of urea by decomposi- tion of aqueous hydrocyanic acid 1067.-spectroscopic characters of the am- moiiical solutions of carmine cochi-ncal and otlier substances 1096. Campbell C. preparation of vegetable parchment 861. Ca:nperhausen E. water-culture ex-periments with flax 1209. Campisi G. and Y.dniati action of urea nitrate on benzyiic alcohol 928. Cannizzaro S. action of cyanogen chloride on beiizjlic alcohol 927. -inonobenzgl-urea 928. Carles P. estimation of cream of tartar in wine 1920. Caro. See Graebe. Carstanjen E. deriratives of thy-inol 350. -and Schertel action of ethylene iodide on acetjlicle of copper 903. -attempts to prepare carbonyl cyanicle 900. -oxidation of a-napthyl-car-boxjlic acid 920. -syntheses br means of nascent formic acid 897. Ce ch O. centrifugalising of raw sugar 458.-rcsults of manures applied to beet- root 83%. C ha brier nitrous acid in soil 860. -nitrous acid in the water and mud of irrigation-canals 951. Champion P. compounds of erythrite 812. -danibonite 811. -djnamite and its use in \Tar 771. -nitroethal nitroglycol and a gene-ral method of traasforuiing alcohols into their corresponding nitric ethers 1036. -preparation of sericic and lanuginic acids 380. -use of dynamite for breaking up large castings 772. Chatsrd T. &I.,determination of mo-lybdic acid as plumbic molybdate '738. Chevreul E. ash of paper from the burninq of the Ministdt-edes Finances Paris 8'j3. Chojnacki. See Liebermann. Christiansen O. refraction-relations of fuchsine 884.Church A. H. brittle silver 498. -zircons 115. Clarke G P. reactions of oils with sulphuric acid 432. 4x2 1228 INDEX OF 4UTHORS. Claus A. action of nitrous acid on urea in aqueous solution 265. -constitution of diglpollic digly- collamic and trigljcollamic acids 361. -decomposition of acrolein-ammonia by dry distillation 63’7. -decomposition of grapc-sugar in alkaline solutions 914. -decomposition of the so -called snlpho-nreas by nitrous acid 267. -sulphazotised acids 307 659. -and Krall action of sulphur chlo-ride on aniline in presence of carbon bisulphicle 264. Clermont A. preparation of ‘trichlora-cetic acid 812. -trichloracetates 1043. Des Cloize aux montebrasite 892.Clon-es F. automatic thermo-regu-lator 639. Colley R. on Leidenfrost’s phenoine- aon 974. Commaille A. action of ammonia on phosphorus 1159. Con ar d T. E. neutral crystallisable pi-inciple of black snake-root 400. cle Coppet L. C. preparation of super-saturated solutions 649. Cornu A. reyersal of the lines in the spectra of metallic vapours 1143. Co ssa A. the hydrozincite of Auronzo 893. Crafts J. M. ethers of arsenious and arsenic acids 817. -and Silva R. preparation and properties of trietliylpliosphitie 689. Creclner H. on certain causes of dif- ference in crystals of carboiiate of lime 670. D. Dale R. S. and Schorlemmer C. on aurine 466. Dalzell and Thorpe on the existence of sulphur diclilode 1163.Danckwortt W. examination of flour 164,. Dareste C. animal staidi 835. 1) ar in s t 5 cl t e r clironiium -compound obtained by heating potassium hcliro- mate with nitric acid 199. Danbe 3’.U. curcumin 152. Davies A. E. high mid low estima-tions of soluble pliospliates 586. Delierain P. metamorphosis and mi- grations of the pro\imnte principles in herbaceous plants 577. Delffs E. sorbite 1043. Desclabissac C.,preparation anduses of manganate and permanganate of potash 868. Deus and Klaye. See Klaye. Dcville H. action of water on iron and of hydrogen on iron oxide 103. -phpical propertiw and heating pcmers of direrent petroleums from Russia 453. D ewar J. oxidation-products of pico-line 144. Diet rich and R oni g composition and digestibility of the substance asso-ciated with cellulose in the fibre of meadom-hay 576.D i t t e A. heat of combustion of magne-sium and zinc 643. -heat of combustion of magnesium indium cadmium and zinc 793. -influence of the calcination of cer-tain nietallic oxides on the heat dis- engaged in their reactions 869. -influence exerted by the crystalli- satioii of cadmium oxide on its heat of combination 870. -spectra of bodies belonging to the nitrogen and chlorine groups 1142. __. spectra of sulphur selenium and tellurium 1146. -sulphide of selenium 995 996. Dittmar and Kekuld on an aromatic glycollic acid 375. Divers X. action of heat on silver nitrite 85. -salts of nitrous oxide 484.Dogie]. See Huppert. Dollfus E. anclA. Peru gum as thick- ing material for printing 768. van Dorp and Liebermann. See Lie berm ann Drzchsel and Finkelstein phos-phorus bases 568. Dumas J. constitution of milk and blood 838. Dubrunfaut M. composition of milk and preparation of artificial milk 863. -note on suet and the alimentary fats 459. -preservation of eggs 866. -production of ammonia in alcoholic fermentation 916. Dnquesnel H. crystallised aconitiue 941. and GrBhaut. See GrBhaut. E. Edger and Glendinning. See Glen d in n in g. E gh i s A. action of sodium-amalgnm on oxalic ether 820. INDEX OF AUTHORS. 1229 Eich L. on Eroiicke’s method of Finck C. French dressing for cotton amalgamating silver ores 447’.cloth 969. Ekin C. origin of nitrates in potable Finkelstein. See Drcclisel. waters 64. Fischer and Glute. See Glut z. E 11 i o t t W. H. estimation of sulphur Fittbogen J.,observations relative to in cast-iron 159. the life of the barlep-plant 578. voii Embden. See Mulder. Fittig R. action of sodium on bromo-Emmerling and Engler derivatives toluene 1029. of acetophenone 258. -and T. Macalpine ethylene-pro- Engelhardt,A.,and P. Latschinow tocatechuic acid 1051. clirysanisic acid 1054. -and Ira Reinsen constitution of -deriratives of diphenyl 1053. piperiiie and its decomposition-pro--’ broino-n-sulphoth~molicacid ducts 934. 1054. -__ synthesis of piperonylic acid Engler C. Sromobenzonitrile 923. and a new mode of preparing proto- -and Emmerling.See Emmer- c~tecliuicaldehyde 1050. ling. Fitz A grape-seed oil 703. Erk K. on the cerite metals 494. Plaj olot M. crjstalline compounds of Erlenmeyer E. acids obtained by lead antiinonite and aiitiiiioniate from oxidation of fermentation butylic Constantine 1016. alcohol 125. Fleck H. gas-~~asliing and gas-absorp--on the different valeric acids 126. tion apparatus 797. -formation of a methyl-isethionic -malting 11ithont gcrmination 458. ~ acid 553. uqe of a reflector in spectrum -sarcolactic acid 546. analysis 857. -synthesis of substituted guanidines Fleischer A isomeric modification of 143. potn-sium sulphocjanate 391. Ermolaien &I.,a new amylene 1036. Fllgilt and Xaskelyne. See Alas-ne. Ernst F. and C. Zwenger gttllic kel~ ethers 821.Fluchiger F. d.,Argemoi~emexicaiaa Eulenberp and Vohl. See Vohl. 154. Everlof g. sulphethers of ethylene -fluorescence of peppermint-oil 154. 1198. -mimtard oil 835. -Jigella seeds or black cummiii 10ti7. -borne reactions of nater glass 492. F. -strirch and cellulose 543. Fo11e n I u s. See T ii cli sc11ru id t. Fairbairn Sir W. on the alleged Ford A dyeing of caoutchouc $c. action of cold in rendering iron and n-it11 aniline eol~urs 971. steel brittle 444. Frankland X. devdopnieiit of fungi Favre P. A. thermic researches on the in potable waters 66. electrolysis of the alkaline bases and Frendel A lithiopliorite 205. the sulphates of the alkalis 985. -nieneglicnite 671. __. F. d.,tlierrriic researclics on voltaic -and Nertschinsk.See Kcrt- energy 1131 1136. s c h in sk. and Silbermann’s thermo-chcmi- Fresenius F. Bailej’s ncw process ~ cal determinations made with the of bleaching 1%it11 sulphurous acid mercury calorimeter inaccuracy of 432. according to Tho m sen 878. -R. estinintion of 11) tlroge~l bid-F t.11 en b e rg-Riv i er analyses of ne-pliide in prc~eiic‘ of LXY~WII clioiicl(* plirite and snussurite 324. 582. lTeltz E. on tlie part played by tlie -recovcq of iiiulj ldic* aeitl fi~~~i~~ Fa11 s and uncyystallisable sugar in the re-iclues lO!jY. generation of molasses 456. -~oliibilit,vcd gc.l:iiiii iii 61) WYIII Fichtinger on J. Schweigcr’s new 72 k. paiiiting ground for stereochromic Freund A. proi1uct.i of the acid fer-pictures 1223. mentation of wheat-bran 545.Ficinus O. cheap preparation of pure Friedel C. sulicliloyidc of silicon 998. dextrin 1099. -and A. Laclcnburg silicopro-Filhol E.,and J. Mcllies nrtion of 1)ioiiic. nvitl 918. iodine on insoluble hisulpliiiles S8?. __ and H. Rilva. action of‘ chloiiiie 1230 on various bodies group-isomerides 1199. INDEX OF AUTHORS of tlie 3-carbon of trichlorliydriu Friedlander S. action of eocliuin-amalgam on odic ether 908. Friswell R. J.,a new double salt of thallium 461. Frblich Argemons mo.ricana 154. Friihling H. colourhg of cemeiitcd work 451. Gal H. broniinated derivatives of acetic anhydride 231. Galletly J. on a parafin having a high melting point 1183. Ganser J. B. ergot 726. Gautier A.egg-albunlin 5’73. T. Gehren. See Schmitt. Gerland E. and S. Raun-enhoff chlorophyll and some of its dcrira- tives 1210. Geromont F.,constitution of allyl-corn-pounds 69’7. Geu t h er,A.,chlorii?e-deriratircsofct1i-j-1 chloride 512. -ethyl-cliacetic acid 812. -tribasic acetic ether 515. -and Michaelis a new phosphorus os-ychloride 1160. -and Michaelis quantiralence of phosphorus arid action of YCP and Br on beiizoic acid 552. -solidificntion of phosphoryl trichloride and bromodicliloride 1162. Gilbert J. H. obscrmtions on soil-analyses maiiures and loss of plant-food by drainage 294. -aiid Lames. Sec Lawes. Gill C. H. laboratory notes on the examination of glucoje-coiit~Liniiig sugars 91. -saline coinpounds of cane-sugar 269.Girard d.,sweet volatile principle in tlie caoutchouc of Borneo 915. -C. and G. Yogt formation of secondary monai-tiineh by the action of bases of tlie formula CnI12n-;.H2X on n,qtliglaunine Ii,vdrocliloricle 1039. -Nillot and Vogt nitroglyceriii and wrious dpanutes 769. Gladstone J. H. aiid A. Ti-ibe a lam in chemical dynamics 1123. I__-corrosion of copper plates by nitrate of silyrr 1008. Glendinning and Edger estimation of sulphur bF barhtn 1085. Glutz L. and E. Fisclier cliloro-and cpno-ncet one 921. Goppelsroder F. fluorescence 482. ,Gore G. tlicrmo-elcctric action of Graebe C. determination oftlie relative positions of the substituted radicals in arotnntic conipouiiils 679.-new class of alcohols 222. -pprene 117 690. ~ and E. Borgniaiin eugenol and tliinetlioq benzoic acid 704. -and H. Caro acridinc 145 ‘703. Griiger N. easy deteriiiiiiation of fat and alkali in soft soaps 96:). -recorer1 of silrer-nitmtc from the silrer-bntli 500. __ redaction of silrer chlori~’,e in the n et n aj-. 499. c_trcatineut of fruit-juices 1100. Gray J. St. Clair distinction of de-posit in lie ins c h’s procebs from salts of niercury 161. GrChant and Duquesnel phpiolo-gicnl action of crjstalliscd aconitine ‘3 Is. Gr e n in gk C. formation of cuprite 203. Qri ess P. a new plienylenz-diamine, 55,. -isomeric iodoocnzoic acids 702. Grinini F. clistillntion-proilucts of a mixture of bat-jmte aiid acetate of calcium 385.-on the fatty acids contained in IIusgarian nine fusil-oil ad in some deihativej of capric acid 359. -See also Gorup-Besanez. Grot omsky M. iiiflnence of sunlight on petrolmm oils 1025. Gi-une IT. albuniin from fish-roes 968. -silvering and gilding of silk 450. -waterproofing of linen and cotton cloth 767. INDEX OF AUTHORS. 1231 Griiner L. decomposition of carbonic oxide by the combined action of metal1 lic iron and its oxides 798. Griinzweig C. butyric acid from clifk'erent sources 359. Gdtzkow F. new method of refining crude silver 449. Gutzhow and Bronner. See Bron- ner. Giittler C. gold in arsenical pyrites of Reichenstein in Silesia 203. Gunther estimation of tannin 762. Guyot P.potassic iodochromate 801. -new facts about selenium 660. -estimation of free hydro~uoric acid 854. H. Haarmann action of brominc on acctic alclehycle 133. Habermann and Hlasiwetz. See Hlasiwet z. Hse di cke H. applications of carbon bisulphide 1232. Hagenbach E. melting of leaden bul- lets by impact on iron plates 798. Hager dctcction of' alcohol in cliloro- form and chloral hydrare 163. -examination for arjenic antimony phosphorus phosphoric acid aid sul- pliuric acid 759. Hahn F. G. application of straw to paper-making 768. -H. C. magnetic pyrites 326. Hampe W. lcads of the Uppcr Hartz 604. Hanisch H. silvering of gelatin relief forms for galvanoplaatic work 767. IIan kel W. G. p-j-ro-electric properties of topaz 669.Harting M. artificial production of calcareous substances such as are found in the organism 950. Hasenclei-er and Helbig roasting of sulphuretted ores 604. -roasting of sulphur ores with a description of a new roasting oven 449. v. Hauer K. saponite 326. Haughton S. granites of Scotland compared with those of Donegal 208. Hautefeuille and Troost. See Tr o os t. Heinreich R. influence of heat and light on the evolution of oxygen by water-plants 10SO. Heintz E. pepsin 734. -W. action of ammonia on n-chloro-propionic and l3-iodopropionic acid 100 H ei n t z TV. constibution of diglycollic acid 361. -constitution of diglycollic digly- co11amic and trigljcollnmic acids 236. -on Flickiger's rrater-glass reactions 493.-nature of the lactic acid obtained from flesn 362. -products obtained by boiling chlor- ethylidene-propionic and iodethylene- propionic acid with milk of lime 362. -purification of etliylene-lactic acid 361. Heintze J. chromium. compounds 890. I1e nn e b e r g Sc11 111x e Rf a rk er and Bass e (:limg~ of inaterial in the adult sheep under uniform feeding 729. Henry L. action of phosphorus penta- chloride on chloral alcoholate 255. -_ action of phosphorus penrachloride on chloral-ethgl alcoholate 696. -chloride of iodine 1Y7. petlier-cleri-wtirts of polyatomic al- coliols and acids 821). -niiw4laneous notes 011 glycerin de- riratirea 907. -prop~lcnc-coinpoun~l~, 808. -synthesis of oxaluric acid 823.Hermann L. Electromotire force of induction in liquid conductors 651. -R. ilineiiium and niobium com-4 pounds 807. Hcrrmann J. C. ergot 724. Hesse O. alkalo'iIs of opium 1064. -use of polarised light for the ralua- tion of cinchona bulis 1095. €I e s sc n b er g F.,anliytlrite 1180. -gypsum of Wasenn-eiler 1180. Heys Z. benzene licscliloride 1028. Hilgarcl W. geology of the J)elta and the mud-lunips of the illississippi passes 675. IIlasixvetz H. baJicity of gluconicand lactonic acids 547. -and I. Habermann proteidcs 1069. -umbelliferone 832. Hoch H. and fE. Xolbe new dcriva- tires from cnrbon ch!oride 900 Hofer H. ilsemannite a new molybde- num salt 1173. -the melaphyres of thc Little Carpa- thians 321.-pliimbocalcite from Carinthia 234. -rosthornitc a new fossil resin 1174. Hoehn and Re i ch a rdt hyoscyamine 149. Hoffmann H. lime and salt plants 1299. 1232 INDEX OF AUTHORS. Hoffmeister W. phenylenic ether and diphenylenic oxide 123. Hofmann ash-analysis of the cabbage 1208. -A. IT. action of acetic acid on phenyl sulphocyanate 140. -action of chlorine on hydrocj-anic acid in alcoholic solution 136. -action of cyanogen on aniline 142. -action of cyanogen on triphenyl- guanidine 143. -action of phosphine on the iodides of methyl and ethyl 569. -aldehyde-green 142. -on the aromatic cyanates 138. -a new class of cynnic ethers 136. -biuret aud allied compounds 396.-decomposition of phosphoretted hydrogen by electric sparks 306. -derivatives of pliosphine correspond- ing to ethylamine and' diethylamine 713. -diagnosis of primary secondary and tertiary amines 141. -direct substitution of the alcohol- radicals for the hydrogen in phospho-rettcd hydrogen 4@7. -eudiomctcr with movable spark wires 30%. -isodicyanic ethers 392. -lecture experiments :-Euclionieter with movable spark-mires.-Doabliiig of the volunie of carbonic acid rluring its cor~rersioii into carbonic oxide by taking up carboii.-Pr~pnratiol1~~~~tioii of purc p1ioq)horettecl 113. drogcn 30 &. -iiem mode of forining isonitrilcs 137. -phenylic santhaniide 267. -preparation of ethylene baves on the large scale 930.-preparation of pure phosphorettcd hydrogen 305. I_ primary and seconclary phosphines of the methyl series 834. -purification of benzene 219. -a reaction of chloroforin 137. -a reaction of cyanuric acid 140. -separation of ethyl-bases by means of oxalic ether 262. -and C. A. Martins methylisation of the phenyl group in aniline 1060. Hoppe-Seyler F. chemical composi- tion of pus 744. -composition of the blood in chy- luria 740. -guanine in the urine of the heron (Ardea cirzerea) 843. -formation of lactic acid from sugar without fermentation 546. -formation of 1)) rocatechin from celliiloae and other cnrbo1i;r dralm 2%. Hoppe- Seyler F. hgmatin 736. -occurrence of gelatigenous tissues in Inwrtebrata 849.-production of pyrocatechin from carbohjdrittes 8-19. -putrefactive processes and dccom- position 843. -urinary calculi 848. -urine of Pseudopus serpentiiaus 848. Horstmann A. on the theory of dis- sociation 880 Houzeau A. electrisation of air and oxygcn for the production of ozone 934. How H. water from the coal-mcasures at ITcstville. Nora Scotia 176. -on winkworthite 320. Howard I).,new allialo'icl from cin-chona bark 61 Hiibner II. bromo-Eulphotoluencs 1056. -determination of the relative posi-tions of tlic substituted radicals in organic compounds 824. -isomerism of aromatic acids 363. -and I<.Miiller re1:Ltions between glyceiin and ally1 compounds 906.-sulphotoluoiie clerivcd from bromotol~icnc,120. Hiifncr 0.)estimation of urea 1)y means of sodium hypobroniite 162. IIuggins W. spectruin of Uranus aid spectrum of comet I 1871 885. IIunt T. Sterry oil-bearing liiiiestoirc of Chicago 674. Hunter J. effccts of pressure on the absorption of gasw by r*liarcoal,7G. Huppert II. and J. Dogiel ou biuret, 716. Hurschberg A. prevention of inju1.y from the presence of limc in brick clay 765. J. Jacobi J.,separation and utilisation of pliosphoric acid in iron ores 1328. Jacobsen O. analysis of a very coin- pact Swedish peat 211. -chlorinated products of ethyl oxide 513. -combination of chloral with alco-hols and amicles 257. -flesh-juice of Phoccenn covmunis 426.-Indian geranium oil 261. Jnffh Max biliary and urinary pig- meiits 419. INDEX OF AUTHORS. 1233 Jani W. method of working up ura-nium residues 586. w titration of phosphoric acid by uranium solution 753. Jannasch P. on a crystallim xylene 509. -cumidic acid 238. v. Jereme j ew P. diamonds in xantho- phjllite 66’7. Jermolajew. See Menscliutkin. Jiirjensen 8. M. periodides of the alkalo’ids 398 929. Joule J. P. effects of cold on iron and steel 445. Judson W. E. trichloracetic and tri- chlorocrotonic acids 332. K. Kachler J.,blue chamomile oil 258. -researches on compounds belong- ing to the camphor group 561 1048. Kiimmerer H. employment of‘ bro-mine instead of chlorine for analytical purposes 581.-organic derivatives of sulphuric acid 552. KckulB A. observations on the “first runnings ” from the alcohol manufac- ture 1187. -and Dittmar,on anaromatic gly- collic acid 375. Kempf T. action of liquid phosgene on some organic compounds 341. Kempt T. and H. Kolbe products of the electrolysis of potassium ace- tate 916. Kenngott A. the chlorite family 206. -composition of epidote 1172. -hydrated sodium chloride from Etna 1173. -nephrite (Punamu) of New Zea- land 673. -sandbergerite 327. -sa1-animoniac from Vesnvius 1016. K e s sle r F.,estimation of phosphorus in iron 159. Kieline.yc~r Dr. black lustre for sugar pnpev 170. Ti i in t z e 1. Stc RI o n t L‘ f i oP e-Le v y. Kirpit sclion M.dctcrmiiiation of copper and brass by titration 758. Klaye A, and A. Deus separation of zinc from nickel 955. Knapp K. estimation of carbonic acid in well-water 582. Knop A. on some substances crystal- lised from nlicrocosinic salt and from borax 802. Xnop W. crystalline form of titanic acid 200. v. Kobell F. abnormal crystals of so-dium chloride 1178. -behaviour of lithium minerals be- fore the spectroscope and occurrence of thallium in sphalerite 312. -gumbelite 325. -monzonite a new mineral species 1178. Koch K. detection of curarine 600. K oelle It. dimethyl- and diethyl-pro- tocatechuic acid 829. Kohlfurst L. improved copper-zinc battery 480. Kohlrausc h F. spectroscopic pheno- mena produced by dispersion 798.Kolbc H. constitution of diglycollic diglycollamic and triglycollamic acids 236. -on structural formulze and the tlieory of the liiikiiig of atoms 331. -_ and Hoch. See Hoch. -and Kempt. See Kempt. I(o h n F.,alloys of iron and manganese 169. Xonig J. elenientary composition of vegetable fats and amount of fat in digestible fodder 1201. -and Dietrich. See Dietrich. Kosmann B. iridescent lamine in hy-persthene 1174. -C. analytical researches on rocks 436. -_.Dr. comparison of the working of the ordinary puddling funlace and tlie Siemens’ regenerative furnace 446. Kraemer action of chlorine upon alde- hyde 253. Kranier and Pinner action of chlorine on alclehydc 556. Krall. See Claus. Kratke K.manufacture of starch-syrup and starch-sugnr 458. Kraut K. acetopipeiidine-compounds 147. -action of salts on alcohol 346. pdecomposition of phosphorus tri- chloride by water 660. -on saliretin 540. -arid 0. Popp potassiiini aiiialgaiu and sodium amnlgam 890. Kr et s chine r. See Lie b rrm an 11. Xreuslei.. See Rittliausen. Xrippendorff silvering of glass S.50. Kriwasin W. decomposition of ethy-lene bromide by water 1027. -on the so-called dichloracetonc 1027. -structure of ethylene 102’7. Krok G. M. derivatives of luteo- and vweo-cnbaltic enlphates 1169. 1234 INDEX OF AUTHORS. Kruke F. M. dissociation in aqueous solution of ferric chloride 662. K un d t A. absorption-spectrum of liquid nitrogen t,etroxide 185.Kun dt A. anomalous dispersion 884. Kuhlberg. See Beilstcin. Kiihn G. influence of food on the pro- duction of milk in the corn 414. Euhr A. waterproofing of linen ’76’7. Kurbatow A olibanum 695. L. Laborde l’Abb6 new facts concerning tlie conimunication of heat 1128. Ladenburg A. reactions of stannic tPie tliicle 223. -reduction-products of silicic ether 1037. 7stannic phenyl- triethide 225. -and Friedel. See Prieclel. Landolt I€.,bromine-water as a test for phenol and allied substances 1216. v. Lang V. anomnlous dispersion of acute-angled prisms 883. Langlois and Saint-Pierre spon-taneous decomposition of potassium bisulphite 1167. Latschinow and Engelliardt. See Engelhardt. Lawes and Gilbert effects of the dvouglit of 1870011 some of tlie experi- mental crops at Rotltainsted 430.--on tlie nitrogen supplied to the soil in manure and not recovered in the iucrease of crop 51’7. Le Uel petroleum of the Bas Rhin 1025. Le Blaiic F. voltaic energy of tmo- liquid batteries 1133. Lechartier G. and F. Bellamy fer-mentation of fruit 836. Lee R. IT. atomic weight? of cobalt and nickel 1006. Lem o ine G. reciprocal transformation of the two allotropic states of plios-phorus 115’7. von Lennep J. R. bromosulphoben-zoic acid and its deri~atires 399. L’Hote L. method of detcriiiining the gases resulting from the explosion of nitroglycerin 1219. Lieben A. action of chlorine on abso-lute alcohol 345. -and A. Rossi conversion of for-mic acid into methyl alcohol 343.-normal amyl alcohol and normal caproic acid 1033. -normal butyl alcohol 516. -normal raleric acid 1043. Liebermann C. by-product in the manufacture of alizarin 535. -note on Bottger and Yetersen’s communication 011 nitrogen-couipounds of authraquinone 533. -clirysene 692. -naphthazarin 355. -and Chojnacki action of sul- phuric acid 011 opianic acid 379. -and van Dorp colouring matter of cochineal 912. -and Kr e tsc hm er propargylic ether 52’7. v. Liebig J.,silkworm disease 435. v. Lill M. ullmannite from tlie Rin- kenberg in Carinthia 1179. L ini p ri c 11 t and Sc 11 wan e rt Benzoin 536. Linckc R. mricptcd sandstones of the eastern rim of tlie Thuringian basin 209.Linnemann E. and V. von Zotta conversiou of acetone into lactic acid 919. Lippmann E.. phenylic ethers 1040. -and Sperlic*h. See Sperlich. Loew O. tleriratives of albumin 409. -electrocapillary (cheruosiiiotic) phc- nomena 1140. LO me J.,app‘iratus for estiniatiiig the melting points of organic bodies 973. Lommel, E. fluorescence 798. Losanitsch S. M. tetranitrodiphenyl 509. Lot liar -Mc y e r isomorphism of so-dium nitrate with calcspar 197. Lougninine action of sodium on iso-meric nionobromotnluenes 684. Lubavin N. artificial digestion of casein by pepsin and action of water on albuiiiinous substances ‘731. Ludwig E. meteoric iron from the desert of Atacama 1180. -H.estimatioii of flour 858. -&I. density of elements compared with that of their oxides 798. L1111g e G. determination of available clilorine in bleaching powder 858. -recovery of nitrous acid in the manufacture of sulphuric acid 1100. Lwow M. quintanes 1026. M Macalpine and Pittig. See Fittig. Marcker assimilation of meadow-hay by sheep 1074. -and Kenneberg. See Henne- b crg. Magnus H. G. obituary notice of 610. INDZX OF AUTHORS. 1235 Maisch 6.Ji. decomposition of mor-31crrick J.M. deteymination of nickel phine acetate in solution 14% by the bntter'y 1091. -detection of turmeric in powdered -tcsting cochineal 601. rhubarb and yellow mustard 761. Merz and \Veith amiJobcnzoic acid Mallet J. W. threeniasses of meteoric iron 1020.and carbon bisulphile 23% tlnoauiline and thiotoluidine Maly R prepsration of creatinine liydrochloricle from urine 942. Marcet IT. constitution of blood and nutrition of mnscular tissue 5744. -observations on the state of com-bination of fertilizing matters in the soil 296. Marignac C. researches on the den- sity and expansibility of some solu- tions 1125. -spwific heats densities and expan- sions of some liquids 94. Markownikoff W. on the hydro-carbon C7H14 and its derivatives 1027. -oxidation-products of dichlorhy-drin 1028. Marschall A. influence of certain salts on the crystallisink power of cane-sugar 457. Martin A. magiiesium sulpliate springs of Hunpdi Jaiibs near Ofen 1081. Martius and Hofmann.See IIof-mann. Maskelyne PIT. S.,mineral constituents of meteorites 116. -and Fli glit nineralogical notices 1. Matthiessen A. obitwary notice of 615. Maumen6 E. calcination of lead oxa-late 1156. -E. J. saccharate of sodium chlo-ride '752. Ma J er A. alcoholic fermentation and mode of nutrition of the yeast-plant McNab W. R. transpiration of watery fluid by leaves 830. Medicus L. compounds of aldehydes with amides 151. M&hu,C. iodised cotton 967. Meissner G. copying drawings by pho-tography 867. 3Iellies and Filhol. See Filhol. Melnis I?. action of cyanic acid on acrolein 133. Mendelejeff D. considerations onthe sjstem of the elements 483. Menschutkiii and Jermolajew chlo-racetainide and iodacetamide 150.Mercadante M. action of hydrobro-riiic acid on citric acid 1047. 56% Miescher F. chemical co:npositiou of pus-corpuscles 7 4%. -nuclear structures iu the yolk of the hen's egg 746. Mcssel R. strychnine-oxethyl com-pounds 148. -sulphomsleic acid 131. Met z A, areoinetric analysis of beer 602. Meunier S. the black colouring mat- ter of tacljerite 329. -conversion of serpentine into tadje- rite 503. -geology of mAeorites 808. -metamorphism in meteorites 503 501.. Meyer A. H. the bcta':no of the phos- phorus series 1066. -E. L. action of zinc chloride of nitrous acid and of chloritlc of lime and hydrochloric acid on morphine and ot' zinc ch!oride oq pp~wrine,26%. -E. gases enclosed in coal 899.-O. internal motion of gases 797. -V. dibromobenzene 119. -V. and Ador. See Ador. -and Ascher. See Ascher. Michaelis A. action of phosphorous chloride on anlijdrides and chlorides 491. -sulphuryl chlorides 489. -and Geuther. See Geuther 1162. Miller W. A. obituary notice of 617. -W. I€.,cleterininatioii of crrstalline Molir F. unequal heat -conducting power of gases 298. -formation of rock-salt 310. -heat erolved in the formation of aqueous solutions 474. -optical evidence of the nature of water of hydration 183. -relation between the chemical com-position and refractive power of gases 183. Du Moncel T. H. influence exerted in thc Foltaic battery by the size of the plates 681. -on the most economical disposition of voltaic batteries with respect to the size of the plates 1132.1236 INDEX OF 4UTHORS. Monier E. composition of beers con-sumed in Paris 1224. Montefiore-J(evy andKimtze1 phos- phorus bronze 860. M o ore G. occurrence of amorphous sulphide of antimony in the minerd kingdom 671. -G-. E. electrolysis of substituted derivatives of acetic acid 701. Morin M.; gelatiniform matter albu-minose exalbumin galactin 1071. Morton H. colour of fluorescent solu- tions 992. Moscliini L. chemical action of sun-light on olive oil 1192. M outier J. dissociation considered from a thermodynamic point of view 644. Muck P. trithionic acid 658. Mulder E. allantoin and bodies de- rived therefrom 1197.-a method of qualitative analysis and synthesis 156. -and von Em bclen electro-thermic methods of analysis and synthesis 155. Mulle r A. coinbustion furnaces 438. -constant colour aid intensity of light from clouds for chromometry 183. -preparation of an oxidised aniline black 1098. -recovery of tartaric and citric acids from the residues of the " discharge " process 173. -red colour-printing with artificial alizarin 603. -water-analysis with the "hydoti-meter," 582. -Rater-analysis sulphuric acid esti- mation 439. -C. estimation of the valuc of chlo- ral hydrate 444. -F. -F. C. See Hiibner. G. action of phosphorus pen-tacliloride 011 orthobromobenzoic acid 1055. -derivatives of P-p"r:Lbromosulplio- toluene 1055.-lecture apparatus for condensing mninouia 186. -__ J. J. green colour of leaves 655. __ K. analysis of clilornl hydrate 254. __ and H. Hiibner. See Hitbncr. -M. etlipl sulphide 904. -Tic'. gold-ruby glass 972. Munroe C. E. estimation of phosphoric acid 583. -use of porous liollow cones as fil-ters 1083. M unt z E. germination of olcaginouu seeds 1216. Muspratt J. S. obituary notice of. 620. Myers J. hydrogen sulphide contain- ing arsenic 889. -temperature of decomposition of hydrogen sulplfide 889. N. Na h ape t ian A, triethyl-carbinol 1035. Naumann A. dissociation tensions of ammonium carbamate 1195. -length of time required for the evaporation and condensation of solid bodies 879. Ne nc ki M.researches on the uric acid group 1058. Nertuhinsk and Frenzel plumbostib and embrythite 6'71. Neubauer C. detection of morphine and stryclinine in presence of one another 443. -quantitative estimation of tannin iii oak bark 595. Nichols W. H. solubility of oxalates of alkali-metals 548. Niedzwiedzki J. trinkcrite from Styria 1179. Nollner C. luneburgite 326. 0. Obolensky J.,mucin of the submasil- lary gland 949. Oppenheim A. action of sulphuric acid on organic chlorides containing oxygen 125. -observations on the ally1 group 906. -~n~l Ador. See Arlor. P. Pnpillo~i,B. relations oS the bpectrill properties of the elements to their pliysiological inoperties 1078. Parker J. S. optical examination of tlic Besseiner flame 98.Parkes E. A. effect of diet and exerci>c on the elimination of nitrogcn 2412. Parnell E. W. eatinintion of phospho- ric acid 441. Paterna E. and G. Pisati action of pliosphoriis p~wtachloricle 011 diclllor-alLlellJd?,1190. INDEX OF 4UTHORS. 1237 Paul B. H.. quality of chloral hydrate 134. Payen M. cellulose and lignin 5’75. Peckolt T. Persea gratissima 727. Perceval S. occurrence of websterite near Brighton 11’79. Perkin W. H. anthraflavic acid 1109. -derivatives of anthracene 13. -derivatives of coumarin 37. Pernod recovery of colouring matter and oxalic acid from the wash-waters of madder in garancin-making ’768. Per so n n e J. conversion of chloral into aldehyde b-j inverse substitution 134.Petersen K. influence of marl on the formation of carbonic acid and nitric acid in the soil 751. -T. ceruleolactine and variscite 1014. -constitution of the nitrochlorophe- nols 248. _I ciinitrochlorophenol melting at 69”) 247. -derivatives of anthraquinone 534. -and Baehr-Predari action of con- centrated nitric acid on the chloro- phenol-sulphonic acids 244. -chlorophenol-sulphonic acids 210. -and Bottger. See Bottger. Petit A. blue colouring matter derived from eserine 719. -egg albumin 572. -new theory of fermentation 897. Pfankuch F. new modes of formation of hydrocarbons 895. -sulphoform and cyanoform 901. Pfaundler L. amount of heat evolved or absorbed in the solution of sodium phosphate containing different quanti- ties of water of crystallisation 1131.-elementary deduction of the funda- mental equation of the dynamicai theory of gases 884. -molecular heat of the hydrates of sulphuric acid 195.. Pfundheller C. L. dyeing wool ama- ranth colour with Yuchsine 971. -C. new brilliant green for wool 861. Phillips J. A. chemical coinposition and microscopic constitution of certain Cornish rocks 110. -J. Mallet’s process for the prepa- ration of oxygen 859. Pierre I. and Puchot oxidation-pro- ducts of the priiicipal normal alcohols 901. -phenomena observed in the distillation of certain mixtures of liquids insoluble the one in the other 975. Pierre I. and Puchot propyl and butyl bromides 523.-prop91 and but$ chlorides 808. -_I simultaneous distillation of water and certain alcohols insoluble in water 1029. Piesse and Wright. See Wright. Pinner A. compound of aldehyde and sulphaldehyde 383. 7 preparation of acetal from alde-hyde 384. -and Kramer. See Kramer. Pisani analysis of nadorite 1178. Pisati and Paternb. See Paternb. Plo sz P.,behaviour of animal substances contailling phosphorus while under-going decomposition 734. -condition of the doubly refractive substance of striped muscular fibre 735. -nuclei of the blood-corpuscles in birds and snakes 740. -paralbumin 722. Pocklington H. optical analysis of beeswax 858. Pohl H. Canadian oil as a solvent for oil-seeds 969. -extraction of animal fats 109’1.Popoff A oxidation of the ketones 1057. -oxidation of isobutyric acid 125. Popp O. ash constituents of the seeds of Acacia nilolica and Hibiscus esw-lentus 429. -circular polarisation of castor oil 388. -excrement of the common bat 424. inuloid a soluble modification of inulin 348. -synanthrose 348. -urea a normal and constant con- stituent of bile 423. Pr ian i c kni ko w J. dimethyl-pseudo-propylcarbinol 1036. Priwoznik L. formation of di-am-monio-zinc chloride in Leclanche’s manganese elements 496. Pnchot and Pierre. See Pierre. P ii Iler R. gravimetric estimation of arsenic 586. Pu tl c h e r C. permanent copying paper for printed matter 971-Raab L. amounts of barium and man- ganese in certain minerals 1177.1238 IKDEY OF AUTHOBS. Rammelsberg C. composition of tan-talic and niobic coqouiich 1013. -hydrated calcium carbonate 801 I om Itath G. babingbonite at Her-bornscelbach in Nassau 1180. -contrihutioiis to mineralogy 506. -identity of auibljstegite with hypewthene 1179. -ilyaite fi-om Nassau 1180. -new locality for monaLite 324. Rat like B. sulpliocarboiiyl chloride and a new sulpiiochloriclu of carbon percliloronietlijlic mcrcaptan 34 4. RsttraF A eti’t~tsof change of cli-mate on the huiiinii ccono111~‘,411. Raun eiilioff and Ger1:~iid. See Qer 1a n d. Rechters C. utilisation of thc residue obtained from roubting iron pjrites 419. Recknagel G. physical characters of carbonic acid 884.Regnnult V. new manometer 482. Reicliardt E. analysis of a cenicnt stone 678. -blood and urine in leukhaemia 421. -modification of Schlii sing’s method of deterniining nitric acid 439. -and Hoehii. See LIochn. Reiclienbach E.,mulberry-leaves from Turkestan 435. Reiman RI. amorphous silicic acid as n1orclant for colouring niattcrs 452. Reiniann X. extraction of aniline colours 861. Reirner K. deriratires of isobutF1-alcohol 12 1. Rerubold G. a derivative of gallic acid 374. Reinsen Ira action of molten potas- sium hydrate on sulphosjbenzoic acid 1052. -new source of para-ouybenzoic acid 369. -oxidation isoineric sulpliosalicylic acids 1052. of toluene-sulphuric acids 1052. -parasulpliobenzoic acid 704.-and Fittig. See Fittig. Re tin Fr. 1i;t.inatoq liii 541. R en ss A. tmo new pseudomorphs, 67”. Re~nolcls,J. E. c(>llnid bodies con-taining mercury. Fnttv ketones 561. Rlieineck H. A. coloriiietcr 1223. v. Richter V. eonditutiou of beiizeiie deiivstires 686 S24. -action of potassium cjanide on bronionifro benzeile 220. of Riciitcra E. prt~i+t:i~iu~i phos-phoric acid by ammonium molgbdate, 157. Ri es s J.,isobutylbenzene mid isobutyl-miisol 220. -P.. action of the second:try currents of tlic roltuic battery on the primary currents and 011 one another 84. Ritter E. blut colouring matter in the bile 1204. Ritthauscn H. mid U. Kreusler leuciiie froin wgetablc proteicles 719. --aspartic and glutainic acids among the clecoillpositiuii-lJroc~Lictsof proteitles 761.Rirot L. E. extraction of gold and silrev froiii tlicir ores 12%. Roberts J. ncw diffusion apparatus for extractiiig plant-juictis 1100. Roscoe 11. E. ranndium 23. -and T. E. Tliorpe measurement of the c1ieiiiic;il intensity of total day-liglit mado at Catania during the total cclipse of Deceinbci-28 1870 1141. RosL),G. isomorphism of sodium ni-trate 11 itli calcspar 197. -G. zircon in the hypersthenite of tlie Radau Vallry near Harzburg 205. -II. oil the sulpho-acids of the niesitglenej 376. R o s en b n s c21 H. remarkable conere-tioiis of clialceclony from Brazil. 327. R o s en gar t eii and 8 t reck er deeompo- sition of caffeidiie by barium hydrate 116.Rossi A synthesis of normal prop91 alcohol from ethyl alcoliol 1030. and Lieben. See Lieben. Rost. See Stotimanii. ROUIC, JZ. tlie artesian well at Roche- fort 1181. -existence of copper in certain waters 1096. Ron-an T e>timationof manganese in spiegeleiseii and ferroinaugiiiese 756. Rudiiow W. dinitraniline 712. Ruclorff F. determination of glacial acetic acid 1093. Rump C. amount of copper in iron 312. S. Sabnnejew A. action of water on nntimonious chloride 662. Sacc RI. gnllic aviel 706. Sti1e t G. spectra of sulphur sclenium and tellurium. 1145. _I ym-trn of tin and its coinpouncle 1147. INDEX OF AUTHORS. 1239 Salkowski H. chrFsanisic acid 555. -constitution of chrysaiiisic acid 920.Sandberger F. litliia-mica in the Fichtelgebirge 11130. Sar n ow C. monochlorocrotonic acid 1046. Saytzeff A. aiid M. bchaviour of normal but31 iodide with alcoholic potash 524. -conrersion of fatty acids into the corresponding alcoliols 225’. -conrersion of snccinic acid into the correspondng diatomic alcohol 810. Schnal E. products obtained from aspartic acid 129. Schacht C. determination of the amount of alkalojids in Peruoiaii bark 1226. Schaffer L. bromal and tlio by-pro- ducts of its manufacture 358. Scheerer H. analysis of co1uniercial tin 9%. -separation of magnesia fyom pot- ash and soda 955. Scheermeuscr F. absorption of gases by soils 851. Sch e i b 1 e r use of aniinal charcoal for the decolorisation of sugar-solutions in polarimetric analysis 763.Schertel b.,chemical changes of silver in treasure-trove found at Hildeaheim 666. Scliertel and Carstanjen. See Car- stanj en. Scheurer-Kestner A. action of hgdrochloric acid on ossein and de- termination of ossein in fossil bones 733. -use of “gtzize ” for the preparation of alkaline silicates 763. Suhiff I€.,constitution of ssculin 700. -determination of colouring matter by spectrum analysis 760. -notes on organic analgsis 9S7. -synthesis of a!kalo‘ids 143. -synthesis of conine 480. -tannic acid 550. Schinz C. chemistry of iron smelting 446. Schlocsing C. cleai*ing of muddy waters 868. -precipitation of muddy matter by weak saline solutions 750.Schmid E. E. desmin 1016. -mesolite 1018. -ITT. action of phosphorus dis-solred in carbon bisulphide on a solution of blue vitriol 953. Schmidt E. A nickel chromate and ammonio-nickel chromate 108. Schmitt R. and H. v. Gehren fluo-benzoic acid and fluobenzene 368. Schneider It. new sulplio-salts 313. -W. constitution of diauiylene 216. Schocnn decomposition of minerals by sodium and potassium 1210. Schonn analjtical notices 580. Schorlemmer C. hydrocarbons of the series CnHm+2,896. -and Dale R. on aui-ine 466. Schott O. volumetric estimation of zinc by sodium sulphiicle 1215. Scliramm H. cxaniimtiori of essential oils 1099. Schrauf A. apatite 1180. -moljbdates and vanadates of lead 500.Schreder J.,oxypicric or styphnic acid 227. Suhreiner Ph. melolontlline 1201. Sc 11 r ii d e r A. valeraldehyde 559 ”06. Schutzenberger P. new class of platinum compounds 1009. Schulte A. influence of quinine on oxidation in the blood 1202. Schulze F. action of sulphur on ben- zene 219. -1,. See Henneberg. P. examination of sugar after treatment with sulphurous acid 762. Schultze W. influence of the second- ary extract-formation in fermenting mashes 1223. Schultz-Sellack A. C. baaicity of uranic oxide molybdic acid boric acid aiid nitrous wid 199. -compounds of sulphuric anhy-dricle 193. -sensitiveness of haloyd silver salts to light aiid connection of chemical and optical light absorption 302. -cliemical aiid mechanical changes of the silver halord salts by light 481.-on the clean surface of fibres of albumin and tannin and their use in photography 1150. -coloured photography 867. Schunck E. antlnafla\ic acid 380. Schwanert. See Limpricht. Sc h w eit z e P P. action of sulphurous acid on certain metals 656. Se c c hi P.,new method of speclroscopic oSservation of the sun 798. Seegen J. determination of sugar and detection of albumin in urine 1095. -excretion of the nitrogen of the albumino’ids decomposed in the body 913. Seely C. A. on ammonium and the dissolution of metals without chemical action 309. 1240 INDEX OF AUTHORS. Selle A. vegetable cement of great ad- hesive power 971. Sellmeier anomalous sequence of colours in the spectra of certain sub- stances 885.Senhofer and Barth. See Barth. Sestini F. absorbent pon-cr of red phosphorus 1005. -derivatives of propionic acid 234. -detection of carbon bisulphide 1090. -reactions of carbon bisulphide 1023. Seward H. estimation of acetic acid in lead acetate 442. Sharples 8. P. on some rocks and other dredgings from the Gull Stream 319. Shepard C. U. meteoric iron of Sears- mont Maine 1180. Sidot T. preparation and purification of carbon bisulphide 799. Siegwart E. application of certain fluorine-compounds to the pi*eparation of frosted glass for photographic pur- poses 166. Siemens C. W. increase of electrical resistance in conductors n itli risc of temperature and its application to the measure of ordinary and furnace temperatures ;also a simple method of measuring electrical resistance 478.Silliman B. composition of perma-nent illuminating gas obtained from the decomposition of petrolcum naph- tha 864. -J. &I. optical examination of the Bessemer flame 97. Silva and Crafts. See Crafts. -and Friedel. See Friedel. Simon and Wibel sarcolactic acid in urine 4.23. Sintenis F. benzylic ethers 909. Skey W. absorption of sulphur by gold and its effects in retarding amalgamation 765. -capability of certain sulphides to form the negative pole of a voltaic circuit 652. -electric conductirity of sulphides and oxides comparcd with that of acids and saline solutions 302.-electromotive and electrolytic phe- nomena developed by gold and plati- num in solutions of the alkaline sul- phides and of sulpburetted hydrogen 481. -electromotive power of metallic sulphides 652. -poisonous principle of the Tutu plant 152. -reduction of certain metals from their solutions by metallic sulphides 604. S mi th J.Denham andE. F. Tesche-macther. See Teschemacher. -J. L. determination of the alkalis in silicates by ignition with lime and sal-ammoniac 442. -L. meteorite of Dandle Alabama 206. __ the Wisconsiu meteoric iron 329. -TT’at s o n distillation of WO~ 1101. -isodinaphthyl 1184. Smjt 11 J. improvements in chlori-metry 1084. Snelus G. J. condition of carbon and silicon in iron and steel 106.So in in ar LI ga E. naphthSlpurpuric acid 238. Sorby H. C. tints of autumnal foliage 184. S or ct L. anomalous dispersion of cer-tain substances 885. Sorokin W. structure of propylene chloriodide 1027. Sp e n c e P. effects of cold on cast iron 445. Sperlich A. and E. Lippmann Bcn- zy1 dioxide and its reaction with amy- lcce 1041. Spirgatis H. on a fossil resin perhaps related to the amber-productng flora 893. Sp r i n g m iih 1 F. iodine-green on alpaca with water-glass 1098. -transparent aniline lacquers and a method of colouring mica 862. -uses of sodium 868. S taedel IT. action of chlorine on ethyl-chloride 696. Stark J. F. analysis of an earth-ball and an intestinal calculus from the horse 425.Starkow IT, toxicology of the benzene group of nitroglycerin nitric acid and sulphuric acid 1078. Stefan J.,motion and equilibrium with special reference to the diffusion of gaseous mist ures 884. Stein W. cobalt ultramarine 860 1221. -constitution of ultramarine 166. -supposed incapability of potash to form ultramavine 451. -theory of the colours of natural objects 1150. Steinbruck mincrai waters of Neu-garoczi near Halle 212. Stelzner C. granulytes of Saxony 807’. Stenhou se J.,nitro-substitittion-com-pounds of the orcins 357. INDEX OF AUTHORS. 1241 Sticht J. C. composition of crude Lartar 867. Stingl J. analysis of a rock and of some incrustations from the hot springs of the Teplitz basin 11’71.-graphite from Stgria 203. S to d cl art E. analysis of chrome iron ore ’762. St r oh e c ker chemical substitution in plants 428. Stohmann Friihling and Rost metamorphosis of albuminous sub-stances in the bodies of ruminants ’728. Stolba F. cleansing of glass vessels soiled with petroleum 972. -coating of metals with nickel and cobalt 972. Streekcr A. behaviour of some diazo- compounds with alkaline bisulphites 1205. -See also Rosengarten. Svenson N. sulphites of copper and silver 1169. Swan action of light on mixtures of alkaline dichromates and gelatin 304. Sy m e J. vulcanised caoiitchouc 970. T. Tamm H. new method of estimating zinc 1214. -new precipitating reagent for cop-per 1091. Tat 1o ck,R.on some sources of error in volumetric anal sis 157. Teschemacher 6.F. and J. Denham Smith estimation of sulphur by barium 1085. Tessie du Motay and Mardchal preparation of hydrogen gas 166. Than C. formation of ozone in rapid combustion 483. Thorns en J. beryUium-platinum-chlo-ride 202. -heat of neutralisation 875. -heat of neutralisation of inorganic and organic bases soluble in water 473. -on the inaccuracy of Fav r e ’and Sil b e rmann’s tliermochemica~l deter- minations made with the mercury calorimeter 8’78. -theory of the molecular motions of gases 884. -thermochemical researches 468. Thompson Sir W. constant form of Daniell’s battery 101. Tborey E. hyoscgamine 405. VOL. XXIV.Thorpe and Morton water of the Irish sea 506. -and Young production of olefines from paraffin by distillation under pressure 342. Tisandicr G. analysis and composi-tion of various manufacturing pro-ducts 762. Toczynski P. platinocyanides and tartrates of beryllium 1013. Tollens B. boiling point and atomic volume of allyl alcohol 346. -conversion of allyl alcohol into acrylic acid 1039. Tow ie’s process for electroplating the interior of metal pipcs 867. Tribe and Gladstone. See Glad-stone. Tr o o st and Hau tc fe uille apparent volatilisation of silicon and boron 997. -heat-phenomena accompany- ing the transformation of nitrogen tetroxide into nitric acid and the introduction of these bodies into organic compounds 871.-spectra of carbon boron silicon titanium and zirconium 1147. -subchlorides and oxychlorides of silicon 998. Tuchschmidt and Follenius solu-bility of carbop bisulphide in alcohol 800. V. Valson C. A. densities of saline solu-tions 987. Varley C. polarisation of metallic surfaces in aqueous solutions 101. Versmann P. chloral hydrate and chloral alcoholate 253. -valuation of chloral hydrate 761. Vierordt K. determination of colour-ing matter by spectrum analysis ’759. -spectroscopic examination of colour-ing matters 602. Vivien A. analyses of molasses 762. Voelcker A. composition and nutri- tire value of the prickly comfrey 1082. -field experiments on root-crops 1083. -productive powers of soils in rela- tion to loss of plant-food by drainage 276.-sugar-beets and bcet-root distills- tion 433. Vogel A. action of dilute sulphurio acid upon starch 226. 40 1242 INDEX OF Vogel A. alkaline reaction of silver o\iile and sil-rer nitrate. 109, -clecxupoaition of silver iodide 313. -fatty constituent of beer-yeast 9-18. -gcrinination of secds 748. huiiiate of aiiiuionia 749. -rednction of cliloride and iodide of silver by 11) drogeii 1009. -H. action of light on red prussiate of potash 303. Togelsang H. a remarkable n-el! 328. Togt and Girarcl. Sce Qirard. To111. composition of Rhine-nater new Kciln 213. -ralnntion of oil-seeds 761. -H. analjsis of a so-called universal manure 854. __ apparatus for the extraction of oil from seeds.868 -~~hotograpliic copying with car-bonate of ammonia 867. -valuatioii of oil-seeds 958. -and H. E ulcnh e rg pliysiological action of tobacco mlieii used as a nnr-cotic. wit11 special reference to the constituent? of tobacco-smoke 1075. Voit I<. tiaaiie-ch:inge in pliosphorus poisoniiig. 946. -utilisntion of wrtxin inoyganic con- stitueiitq in tlie anim:il body 1072. Volharcl J. dccompo-ition of e~anogcn by liydi ocliloric ad in alcoliolic solu- tl011 385. D e Vvij 1;. J.,application of molecular rotation to tlie nilnation of C‘iiiehona barks 857. W Waagc P. iiqe of bromiiic in eliemical and+ 957. Wagner A. estiniatioii of nitric acid 753. -P. TT-~ t er-cult ure experiin en t s Kit 11 maim 1081.Wait z E. Tolumetric determilintion of arsenic 933. Wal die I). new miiicral‘fi.om Buymah 114. Walenn W. H. solutions for electyo-deposition of coppc~ancl bvass 103. Wallace hone-charcoal in sugar re-fineries 868. Wallach O. action of chloral on aniline9031. -and 11-ielielliaus nitration of /3-nnplltllol 333. voii TYa 1t e11 11o fe 11 neiv t 11eimo-elect ric battery of gieat poner 989. AUTHORS. Wa1t ers W. nionochlorinated ethyl chloricle 923. Wal z J. yeduction of siilphuric acid b1 zinc-amalgam 48’7. Wanklyn J. A, analysis of milk 165. -fundamental cliffercnce between the structure of albuniiii and that of cawin 837. W arin gt o n R. estimation of phos-phoric acid in superphosphates 584.-obse~-~-ations on manurep kc. 296. -soluhility of bone-ash phosphate in carbonic water 80. Warren T. estimation of zinc in galvanized iron 161. Wart ha V. lecture experiments ; re-versed flamcs ; decrcase and increase of weight produced by successive oxi- dation and reduction ; burning of magnesium in carbon dioxide 18’7. -reinarb on Ballo’s supposed hy- drate of carbon bisulphide 30’7. -solvents for indigotin 568. Watts ITT. %I.,spectra of carbon 97. Weber R. compound of sulphuric acid with nitric acid 656. Weddige d.,aLr.tion of potassium sulp1i~-drate on benzoyl chloricle 900. Weidel H. new base from extract of meat 716. Weigelt C. aeration of must 458. Weinhold A. rerei*salof sodium lime 185. Weit and Merz.See Merz. Weltzien Karl obituary notice of 622. Vernicke W. peroxides prepared by electrolysis 306. -refraction aiicl dicpersion of light iii silrer joclide bromide ancl chloride 653. Weselsliy P. azo-compountls of yesor-cin 830. -. derimtives of resorcin 227. -on some double cyanides 389. We st p 11 a 1’s process for black-dyeing aiicl loading of silk 971. Wetlierill C. IT. 017 tlie existence of tlie \so-called) compoiind amiiionium ainalgains 491. Wibel F. analysis of a sub-fossilisei hunian thigh-bone 4.24. -golcl from Vancouver’s Island 203. -and Tiingl formation of azurit 200. Wieliclh nus acetyl-deriratiues of ar nioiiia 407. Wi cl e in a 11 n C. iiiipi-oved process extmcting s~lrer ancl gold from t arseniosulphides of lead copper CP.447. ISDEX OF AUTHORS. 1243 Wieland Th. sulphopFrotartaric acid 132. W i e s er H. analysis of eflorescences from Lago d’Ansanto 1177. -analysis of siliceous calamine from Scharley in Upper Silesia i178. -felspar from Blansko in Moravia 11’77. --kicsei-ite from the Hstllstatter Salzberg 1179. Wiesner J. detection of wood-pulp in paper 969. Will H. new coiistitucnt of white mustard-seed 408. Williams R. Douglas sulpho- and sulphonitro-dibromobeiizeiie 1055. -W. 31.)burnt iron and burnt steel 790. Wiinmel Th. melting and solidifying points of fats 45’6. v. Wintchgau ill. Eofinann’s on tyrosine reaction and on some com- pounds of tyrosine and mercury 406.Wi sli c en us (3-iodopropionic acid 235. Wittstein G. C. contamination of iodine with iodine-cyanide 763. I_ estimation of orgsiiic matter and nitric acid in potable waters 754. -occurrence of baryta in silicates 6’74. Wohler F. lecture experiments in illustration of gaseous diffusion 186.. Wolff E. assinillation of clover-hay and mangolds by sheep 1074. Wood C. H. tests Sor chloral hydrate 204. Woodcock R. C. action of normal and acid salts on aiiiinonium salts espe- cially oil ammonium chloride 785. Wreden F. deriratires of camplzoric acid 549. -relations between atomic weights 884. Wright C. R. A. action of hydrobro-mic acid on codeine 404. -opium alkaloids 932. -specific gravity of aqueous hydrio- die acid 655.-specific gravity of aqueous hydro- bromic acid 4%. -and C. H. Piesse oxidation pro-ducts of essential oil of orange-peel 1186. Wroblewsky E. decompositions of isomeric broniotoluidines 713. -cleriratives of metatoluidiiie 563. -dcriratires of ortbotoluidine 1061. I_ isomeric dibromotoluenes 686. -sulpho-acids from orthobromoto-luene 129. Wiillner A. specific heat of aqueous solnt ion s 198. -transformation of the spectra of incandescent gases due to changes of pressure and temperature 483. TVurtz A. action of chlorine on alde- hyde 1056. -and Willm purification of colza oil 460. Z. Zapolsky N. behariour of albuminous matters and ferments ~itli phenol 842. v. Zepharovich V. atacamite crystals from South Australia 1180.-cerussite of kirlibaba in Bukowina 668. -freislebenite and diaphorite 667. Z et t n ow E. chromate of chromic 0x9-chloride 11’70. -compounds of sodium acetate with water 230. Zincke Th. on IL new series of aromatic hydrocarbons 508 688. -ditolyl 510. -two modifications of beiizophenone 832. Zinin N. action of zinc on benzol tetrachloride and other chlorine and bromine products 1041. -on some derivatives of deoxyben- 20111 539. Zinno S. iodosulphuric acid and iodo- sulphates 1164. Z i u r ek disinfection of cesspools and street gutters 971. Zoller P. nutritive and assimilative processes in fungi 12%. -examination of a Himalaya tea 571. Zorn W. action of hydracids on the quinine alkaloyds 931.Von Zotta and Linnemann. See Linnemann. 402

ISSN:0368-1769    

DOI:10.1039/JS8712401225

出版商:RSC    

年代:1871

数据来源: RSC

摘要:

INDEX OF SUBJECTS. Acids chlorinated formation of 551. - diatoiiiic and bibasic monochlo- ridcs of 820. responding alcohols 227. - in the fusel-oil of Eungarian wine 359. - of a mixed character thermal effects of the combinatioii of with bases 980. - produced by oxidation of fermcn- Acoiiitic acid formation of by the action A. - of light connection of optical and - fatty conversion of into the cor- Absorption of gases by soils 853. chemical 302. Acacia nilotica ash-constituents of the seeds of 429. Acetaldehyde-ammonium vapour-den- sity of 707. Acetalchloral hydrate vapour-density of Acetate amylic normal 1034. tation butylic alcohol 125. - and butyrate of calcium distilla- - sulpliazotised 30’7. - of potassium electrolysis of 916.tion-products of a mixture of 3155. of hydracicls on citric ackl 1048. Aconitine ci-ystallised prepayation and properties of 941. physiological action of 948. 707. - propylic normal 1032. sodium compounds of with -of water 230. Acetic acid action of liquid phosgene on - Acridine 708. -- of on phenyl sulpliocyt- Acrolein-a:nnionia decomposition of by Acrinyl sulphocyenate 408. of ozoiie 994. ference between the structure of 338. nate 140. - electrolysis of substituted dcriva- Acrjlic acicl forination of from ally1 dry distillation 537. - estimation of in lead acetate 442. Aesculiii alcohol constitution 1039. of 700 960. tives of 701. - formation of by oxidation of essen- Ail. electrisation of for the production tial oil of orange-peel 1187.- glacial determination of 1093. - anhydride brominated derivatives Albumin and casein fundamental dif- Albite 506. of 231. - ether tribasic 515. Acetobromphenone 258. Acetochloral preparation of from alde- hyde 384. Acetone action of liquid phosgene on - - mercuric chloride on 561. - conversion of into lactic acid 919. Acetone-sulphonic acid 702. Acetophenone derivatives of 258. 338. Acetopipericline-compounds 147. 837. - clean surface of and its use in pho- tography 1151. - detection of in urine 1095. - from fish-roes 968. - new deriratives of 409. - (!gg-) properties of 572. Albuininoiids decomposed in the body excretion of the nitrogen of 943. Albuniinose 1071. Albuininous matters behaviour of with Acetotoluide (nitro-ortho-) 563.plienol 840. Acetyl chloride action of sulphuric acid - substances. See Proteicls. - - conversion of into ethyl al- - Alcoholic fermentation of sodinm acetate 426. and amino- niuin osdate 511. Alcohols amylic constitntion of 1034. Alcohol action of on carbon tetrabro- mide 784. - chlorine on absolute 345. on 125. cohol 228. Acetgl-derivatives of ammonia 407. Acetyl-benzene-alcohol 223. Acetyl-ethyl-dibenzolii 536. Acetylide of copper action of ethylene iodide on 903. - salts on 346. INDEX OF SUBJECTS Alcoliol detection of in chloroform and Alanine 127. chloral hydrate 163. - diatomic formed from succinic Allantoic acid 1200. Allaiiic acid 1198. acid 810. - manufacture observations on the ‘‘ first riuiinings ” from the 1187.- new tcst for 1093. - normal butylic 516. - -radicals direct substitution of for hvdrogen in phosphoretted hydrogen 4b7. Alcohols formation of from fatty acids - insoluble in water and warer simul- taneous distillation of 1029. - new class of 222. - normal ouiclation-products of 901. - thermal effects of the combination Allyl-brucine pentiodide of 400. of with bases 975. - transformation of into the corre- sponding nitric ethers 1036. Aldehyde action of bromine on 133. betmecn 906. 905. - conversion of into acrylic acid 1197. - nitrate 1198. - preparation of by Schlieper’s method 1200. Allanturic acid 1198. Alloy of lead with platinum 202. Alloys on some new 1166.Allyl alcohol on the atomic volume of - boiling point and atomic volume of 346. 227. - chlorine on 253 556 1056. - alcoholate of 513. - con-rersion of into sliloral by in- verse substitution 134. - of the naphthalene group 1057. - preparation of acetochloral from 384. - presence of in the “ first runnings” in the manufacture of alcohol from sngnP-bect 1187. - protocatecliuic new method of preparing 1050. - and sulphaldehyde conipound of Aldehyde-green 142. 603. 383. Alclehydes action of on amincs 957. - compounds of with amides 151. - thermal effects of the combination of with bases 980. Alizarin artificial notes on 1195. - red colour-printing with - b-j-e-product in the manufacture of 535.Alkali determination of in soft soaps Alkaline bases and sulphates thermic researches on the electrolysis of 985. Alkalis determination of in silicates Alkaloid from cinchona-bark 61. 969. 442. Alkaloids action of sulphuric acid on the natural 56. - double salts of containing bismuth 930. - of opium 932 1064. - periodides of 929 598. - in Peruvian bark methods of de- termining the amount of 1217. Alkaloids bynthesis of 143. 1245 Allaiitom and bodies derived therefrom 1039. - tri-iodide of 399. Allyl compounds constitution of - and glycerin compounds relations 696. - group observations on the 906. Allylenc hydriodide structure of 102’7. Amalgamation of silver ores 447. Amalgam 011 the existence of the so-called compound ammonilim 491.Amarinic acid 540. Amblystegite identity of with hypers- thene 1199. Amethenic acid 217. Amides compounds of with aldehydes 151. Amiclobenzoic acid action of carbon bi- sulphide on 238. Amidochromate of potassium 890. Amidonitrobcnzoic (chrysanisic) acid 255. Amidosulphomesitylenic acid 376. Amiclosulphotuylenic acid 253. Amines diagnosis of primary secondary and tertiary 141. Ammonia acetyl-derivatives of U7. - action of on carbon tetrabromide - on a-chloropropionic and /3- 783. iodopropionic acid 1.27. - action of pheuyl on 123. - of on phosphorus 1169. - apparatus for condensing 186. - -bases estimation of typical hydro- gen in 957. - bromocoumarilate 49. - gas absorption of by charcoal under pressure 78.- liquid solubility of alkali-metals in 309. - nitrite and nitrate in solution heat erolved in the formation of 1002. - production of in alcoholic fermen- tation 916. INDEX OF SUBJECTS. Animal substances incineration of 855. - containing phoslihorus beha- viour of when undergoing clecompo- sition '73 4. Anthi*nccne derintives of 13. __ fluorescence of 21. - piqaratioii of from coal-tar pitch and preparation of dye-stuffs froni 1222. Anthraflaric acid 380 1109. - carbamate dissociation-tension of Antlimquinone derivatives of 534. - fluorescence of 22. - salts action of norEal and acid - nitrogen-compounds of 531 533. salts upon '785. Antimonious chloride action of water on Amorphous sulphide of mercury occur- rence of in the mineral kingdom 671.dntiiiionite and antinionrtte of lead Anijl alcohol normal 1033. stantine 1016. 1246 Ammonia salts influence of on the pro- - -salts thermochemical researches ductiveness of land 281. on 1128. - sulphocoumarilate 50. Aminonio-ferrous sulpliate uselessness of for the estimation of chlorine '753. Ammonio-nickel chromate 108. Ammonium 309. - amalgams compound 491. - arsenate 818. - arsenite 819. - caprate 360. 1195. - -brucine biniodide of 400. 662. cr~stalline compounds of €ram Con- Antimony action of on carbon tetra- bromide 784. - examination for '759. Apatite 1180. Aprocmnic acid in mineral waters 921. Arbutin constitution of 960. relative positions of the substituted radicals in 679 824.- cyanatcs 138. - hydrocarbons new series of 508 688. mula of and percentage of gold in 203. Arsenic and arsenious anhydrides re- action of phosphorous chloride on - chloral on 931. - cyanogen on 142. sulphur chloride on in pre- sense of carbon bisulphide 264. - black preparation of oxidised 401. - estimation of as animonio-mag- nesic arsenate 589. - as arscnious sulphide 587. - as uranic pyro-arsenate 593. - examination for '759. - graviinetric estimation of 587. - in hydrogen sulphide 889. - roluinetric estimation of 953. - -constituents of the seeds of the Egyptian Acacia nilotica and Hibiscus - tri-iodide of 399. Amylene a new 1036. - reaction of with benzoyl dioxide 1041.Argemoize mcxicana oil of 154. Amyl-ether cliphenyl:tllophanic 394. Argeiitic bromocouinarilate 49. Amylic ethers normal 1033. - couinariiate 4'7. Amylic gallate 821. Aromatic acids isomerism of 363. - ralerate preparation of by oxida- - coinpounds determination of the tion of amyl alcohol 902. Amyl-strychnine tri-iodide of 399. Analyses of soils real value of 276. Analysis chemical use of bromine in - methods of 153 156. 951. - organic notes on 957. - volumetric sources of error in 156. - nitro-compounds formation of in alcoholic solution,. 222. Arsenic acid behaviour of to hydrochlo- ric acid 661. - of water with the hydotimeter 582. - ethers of 817. - sulphuric acid estimation 439. Arsenical pyrites of Reichenstein for- Anhydrides action of pliosphorous chlo- ride on 491.- formation of 333. Anhydrite 1180. L4niline action of on carbon tetrabro- mide '783. -__ - colours extraction of 861. - uses of 971 972. 1098. Arsenious acid ethers of 817. - lacquers transparent 862. Artesian 13 ell at Rochefort 1181. - methylisation of the plicnyl group Ash-analysis of the cabbage 1208. Animal body utilisation of certain inor- ganic constituents in the 1072. - proteids aspartic and glutamic escdeiitiis 429. As?artic acid occurrence of among the decomposition-products of proteids in 1060. atids obtained from 722. 721. - starch 838. INDEX OF SUBJECTS. Aspartic acid products obtaincd from Atacamite crystals from South Australia 123. Atomic weights of cobalt and nickel 1180.- weights relations between 884. 1006. Atoms theory of the linking of 331. Aurine 466. Automatic thermo-regulator 639. Autumnal foliage tints of 184. Avogactro’s lam 300. Azo-compounds of resorcin 830. Azurite formation of 201. B. Babingtonite 506 1180. Balance-sheet of tlie Chemical Society (1870-71) 628. daric bromocoumarilate 49. .- courna-ilate 47. - disulphocoumarilate 53. - bulpliocoumarilate 51. Barium aniounts of in certain minerals 1177. - cobalticjanides 590. - double cyanides containing 389. - estimation of sulphur by 1085. - pyrovanadate 33. - ralerate 1045. Bark Peruvian methods of determining the amount of alkalolds in 1217. Barley-plant observations relative to the life of the 578.Baryta occurrence of in silicates 6’74. - rolumetric estimaiion of 436. Base new from extract of meat 716. Bases C,H, - 7.H2N forniation of secondary monamines by the action of on naphthglamine hydrochloride 1059. - soluble in water heat of neutralisa- tion of 473. Bat excrement of 424. Battery K o h l f u r s t ’ s copper-zinc 480. Beer areometric analysis of 608. Beers consumed in Paris composition of 1224. Beer-jeast fatty constituent of 942. Bees-wax optical analysis of 858. Beet-root distiliation of 433. - distribution of mineral substaiices in 853. - results of manures applied to 854. Benzaniarone 540. Benzene action of sulphur on 219. - -derivatives constitution on 824. - remarks on the constitution of the 686.- group toxicology of 1078. - hexchloride 1028. of 825. 1247 Benzene purification of 219. - series iwinerisiu in 680. - -sulplionic acid 556. - -sulphonic or phenylsulphurous acid froiii sulplianilic acid 8’6. Benzene tetrachloride action of zinc on 1040. Benzenes twice-substituted constitution Benzliyclrj-1-bcnzoic acid 689. Beiizoic acid actlvn of phosphorous chloride and broilline on 552. Benzom 336. Benzoplienone t n o modifications of 832. - chloride action of pvtacsiuin sul- Benzo\ i-benzoic acid 689. phpdrate on 900. - action of sulplinric acid on - use of as a test for alcohol 125. - dioxide and its re-action with amy- 1093. - hydride action of liquid phosgene lene I O? 1. of 1013.on 338. Beiizj-lbe:izene 688. Benzyiic alcohol action of cyanogen chloride on 926. - action of urea-nitrate on 928. Bcnz~lic carbamate 927. - ethe:a 909. Benz~l~deiie-oxamide 151. Beiizjl urca 928. Berjllium platinocyaiiides and tartrates - platiiium chloride 202. Bessenier dame optical examination of 97 98. Betaine of the phosphorus series 1066. Bej ricliite and Milierite 1176. Bile blue colouring matter in 1204. - urea a nornial constituent of 423. Biliary pigments 419. Birds ciiemical relations of tlie nuclei of tlic blood-corpuscles in 740. Bismuth double salts of alkalods con- taining 030. - oxide use of in iiicinerati~~g animal and vegetable sub+mces 855. Bisulpliide of carbon. See Carbon Bi- sulphide.Bisulpliites alkaline beliariour of some cliazo-compounds to 1196. Bisulphite pot assic spontaneous decom- position of 1167. Bitter almond 011 action of iiascent hydrogen on 384. Biwet 716. - and allied compounds 336. Black cummin or Nigella seeds 106’7. - lustre for sugar p q e r 170. INDEX OF SUBJECTS. 1248 Black snake-root neutral crystallisable principle in 409. Bleaching powder determination of - with sulphurous acid B a i 1 e y ' s available chlorine in 751. new process of 452. Blood coinposition of in clijluria 6 $0. - constitution of 574 838. - influence of quinine on oxidation in Bromo-a-sulphothymolic acid 1054. allied substances 1216. - manganese in 1074. the 1202. - of man and mammals contribu- Bromobenxonitrile Bromo-caniphoric anhydride 923.548. tions to thc knowledge of the 736. Broinochrgsene 6'33. - and urine in leukliemia 421. - -corpuscles clieniical relations of Bromocoumarilic acid 48. Bromocodide 404. the nuclei of in birds and snakes - -globules action of carbonic oxide Broinoeouniarins a and B constitutioii on 839. 740. Blue colouring matter in the bile 1204. - from eserine 719. Blue fire 976. Boiling points of organic bodies 483. Bone-ash solubility of phosphates of in carbonic water 80. Bone-charcoal of sugar refineries 868. Bones fossil determination of osseiii in 733. Borates of sodium action of on animo- nium salts 786. Boric acid basicity of 200. Boric acid heat ebolved on addition of ammonia to solution of 1130.Bornesite 915. Boron appzrent volatilisation of 997. - spectrum of 1147. Brass determination of copper in by titration 758. - electro-deposition of 103. Brewing use of glass -resseh in 868. Bromacetophenone 258. Bronial and the by-products of its manufacture 558. Bromethylene-strychi~iiie tri-iodide of 399. Bromethyl-piperidine 1063. Bromide atnylic normal 1034. Bromide of cyanogen heat evolved in - of iodine and bromine action of on the formation of 986. sugar 271. Brominateci derivatives of acetic nnhy- dride 231. Bromine action of on acetic alclchple - action of on carbon bisulphidc 773. 133. - action of heat on 993. 510,1029. - propylic normal 1032. cliloroform 778. - of silver refraction aid clispersion - alcohol normal formation of from of light in 653.- of sodium compound of with cane- But-~lamine 622. butyryl chloride 229. - bromide normal 520 523. __ butjrate normal 528. __ chloride normal 519. cyanide norinal 522. Butjlamines 121. - Butj lene 520. - action of liydriodic acid 011 525. - (PI 41. of 54. Bromocresol 565. Bromodichloride of phosphoryl solidifi- cation of 1162. Rromocliethylin 908. Broiiiocliiiiethpl-protocatec.1iuic acid 830. Bronioinulophtlialic acid 374. Bromonitrobenzene 687. - action of potassium cyaiiide on 220. Bromophenetolsulphuric acid 1040. Bromopicrin decomposition of uiidcr the iiifluence of heat 775. Broinosulphobenzoic acid and its dcrii a- tives 369. Broniosulphotoluenes 1056.Bromotetmcodeinc 404 932. Eromotetra~norphine 932. Bromothymoquinones 3 51. Broinotolnene action of sodium 011 - (ortho-) sulpho-acids obtained from 129. Broinotoluidines decompositions of iso- meric 713. Broiiiotolylacetaniide 564. Brucinc as a test for nitric acid 581. - tri-iodide of 399. Burettes movable holders for 441. Burnt clay as a fertiliser 2'19. iron and burnt steel 790. Butter colouriiig of with carrot pig- ment 968. Butjl acetate normal 521. B~oniine action of on iodoforni 778. - recovery of from residues 784. - UBC of in chemical analysis 950. - use of instead of clilorine for anal-j-tical purposes 581. - Foliiinctk analpis of 436. - -water as a test for phenol and Broniobeiizoic acid 363 826.Bromocoumarin (u) 37. ~ IXDEX O F SUBJECTS. Butyl-ethylic ether normal 520. Butylic alcohol of fermentation acids produced by oxidation of 125. normal 516. - alcohols boiling points of 523. -__ - butyrate prcparatiou of by oxida- tion of butylic alcohol 903. Butylic iodide 520. behaviour of with alcoholic potash 524. Butyrate and acetate of calcium distilla- - chloride 809. -_I tion-products of a mixture of 385. Butyric ztcid 389. - aldchyde conversion of into buty- lie alcohol 517. - preparation of 516. Eutyryl chloride conrwsion of into nor- mal butyl alcohol 229. C. Cabbage ash-analysis of 1208. Cadmium heat of combustion of '793. - oxide influence exerted by the crystallisation of on its lieat of com- bustion 870.- sulphide as a yellow colouring for soap 868. Caffeicline decomposition of by barium hydrate 146. Calamine siliceous from Scharley in Upper Silesia 1178. Calcareous substances such as are found in the organism artificial production of 950. Calcium carbonate hydrated 801. - cobalticyanides 390. - coumarilate 47. - pyroranadate 32. - spectrum of 1149. - valerate 1045. - vanadates 32. Cdlcspnr 506. - and sodic nitrate isomorphism of 197. Calculi urinary 848. Calculus intestinal from a horse 425. Caloriinetric researches Bunsen's 180. Camphor-group new compounds in the 560. - researches on compouiicls be- longing to the 1048. Camphoric acid 817. - deriratives of 548. reaction of with hydrioclic acid 549.Camphoronic acid 1049. Canadian oil value of as a solvent for -__ extraction of oil seeds 969. 1249 Canals (irrigation) nitrous acid in the \rater and mud of 95@. Cane-sugar saline compounds of 269. Caoutchouc of Borneo sweet volatile principle found in 915. - clyeiiig of nith aniline colours 971. - elasticity of '798. - T-ulcaniscd and tenacity of various sorts of 970. Capillary pyrites 1176. Capric acid derivatives of 359. Caproic acid formation of in the acid fermentation of a-heat-bran 545. normal 1034. Caproiie 360. Carbamate of ammonium dissociation- - tension of 1195. - benzylic 927. Carbohydrates formation of pjrocatechin from 226 849. Carbonate of calcium hydrated 801.- on certain causes of differ- ence in the crystals of 670. Carbon bisulphide action of on amido- benzoic acid 238. - action of bromine on 773. certain applications of 1223. detection of 1090. __- - - hydrate of 196 488. - preparation and purification of 799. - reactions of with the hydrates of tlic alkalinc earths 1023. - - solubility of in alcohol 800. remarks on Ballo's supposed hydrate of 304. -~ - solubility of in water 1023. - chloride new derirativcs of 900. - condition of in iron and steel 104. - of the Cranbourne Neteorite 1023. - from decomposition of carbonic oxide by iron 1023. - dioxide absorption of by charcoal under pressure 78. - doubling of the rolume of during its conversion into tliemonoxide by taking up carbon 304.- disulphide. See Carbon bisulphide. - new sulphochloride of 344. - spectra of 97 1147. - sulphobromide 781. - tetrabromide 773. action of alcohol on 784. action of aniline on 782. - action of antimony on 784. - - action of ammonia an 782. boiling point and specific gra- - - rity of 780. formation of in the manu- facture of bromal 559. - INDEX OF SUBJECTS. Carmine spectroscopic characters of the ammoniacal solution of 1096. Carnine a new base from extract of meat 716. Casein and albumin fundamental differ- ence between the structurc of 837. - artificial digestion of by pepsin Chloracetone 921. acid on 125. (lS70-71) 624. 1250 Carbon tetrabromide action of on silver oxalate 782.Carbonic acid estimation of in well water 582. - gas. See Carbon Dioxide. - heat erolred on adding am- Charcoal animal use of for the decolova- under uniform feeding 729. mania to solution of 1130. - influence of marl on the for- mation of in soil 751. - physical characters of 884. - and alcoholic fermentation of so- dium acetate and animonium oxillate 511. - oxide action of on blood-globules - decomposition of by the com- 839. bined action of metallic iron and its oxides '798. - water solubility of bone-ash phos- phates in 80. Carbonjl chloroplatinite 1011. - cyanide attempts to prepare 900. 731. - constitution of '732. - decomposition of by heating Fith glacial acetic acid 733.Cast iron dry process for estimation of silicon in 1212. Castor oil circular polarisation of 388. Cellulose 543. - composition and digestibility of the substance associated with in the fibre of meadow hay 576. - formation of pyrocatechin from - function of in the structure and 226. developnient of plants 575. - and lignin comparatire nutritive value of 575. Cemented work colouring of 451. Cement vegetable of great adhesive power 971. Cements examination and composition Cement-stone analysis of found near Jena 6'78. Cerite metals 494. of 1097. Cerium chloride electrolysis of 496. - separation of from lanthanum and - oxides 4~95. - salts 496. didpmium 494. Ceruleolactine 10 14. Cerussite 668. Cesspools disinfection of 971.Chalcedony remarkable concretions of from Brazil 327. Chamomile oil blue 258. Change of material in the adult sheep tion of sugar-solutions in polarimetric analysis 763. - effects of pressure on the absorption of gases by 76. Chemical dynamics a law in 1123. - intensity of total day-light mcasure- meiit of a t Catania during the total eclipse of December 22 1870 1141. - motion absolute magnitude of (March 30 1971) 609. 628. 300. - Society anniversary meeting of - balance-sheet of (1870-71) - donations to the library of - proceedings at the meetings of - substitution in plants 428. 163. (1870-71) 605. Chloracetamide 150. Chlorncetic acids action of sulphuric Chloial action of on aniline 931. - dcoholate action of phosphorous - pentachloride combination on of 255.with alcohols and - conversion of into aldehyde by in- amides 267. - - crotonic 557. - verse hydrate substitution analysis 134. of 254. - and chloral alcoholate 253. Chloral hydrate detection of alcohol in - estimation of the value of 444. - physiological action of 748. - tests on the for quality 254. of 134. - -ethyl-alcoholate action of phos- pliorous pentachloride on 696. Chlorate of potassium action of heat - upon 1152. chemical actions exerted upon - 1151. - valuation of 761. by rarious substaiices 1156. - intimate action of substances which assist the decomposition of Chloret hyl-oxide 5 13. 362. - benzene 258.Chlorethylidene-propionic acid products obtained by boiling with milk of lime Chlorhydrin of silicic ether 918. IYDEX O F SUBJECTS. Chlor,de arnvlic normal 1033 - bLItJllC 839 - of caibon new derivatiFes of - of cyanogcn action of on benzghc 900 - of ethyl action of chlorine on 696 - of lime and hyarochloiic acid action of 985 of on moiphine 265 - propylic 808 - and oithoyaiiadate of lead 34 - of sochum abnorindl crystals of 1178 - - aqueous density and expansi bihty of 1127 - compound of mth cane sugar 270 - formation of transparent cubes of 310 - hydrated fiom Etna 1173 - of silver reduction of by hydrogen - refraction and dwpersion of 1009 - of triethyl silicic acid 918 light in 6s3 Chlorides action of pho-phorus chloride - of s111co11 990 - of sulphurj 1,489 Chlorimetry iinpi ovements in 1084 Chlorinated acids formation of 551 Chlorine action of on absolute alcohol 345 - action of on aldehyde 556 1056 - action of 0-1 ethyl chloride 696 - action of on liydrocyanic acid m alcohohc qolution 136 - actim of on various bo&es of the 3 carbon series and on the isomeiides - of trichlorhyilrin determination 1190 of available in - heat evolred i n the formation - ieactioii of 137 alcohol 926 197 Chloranitiobeiizene heat evolved in the foririation of 874 Chloroiiitiosulpliate of giycei yl 907 Clilor oujttli) 1 tiicliloiethylidene 255 Chloiophenolsulphoiiic acids 240 - action of concentiated rutnc acid on 244 Chloroplithalic acid action of sulphunc acid on 125 Chlorophjll and some of its derivatives - on action 491 of s iilphui ic acid on 01 ganic Chloiovaleialdehj Cliolic acid action de of 560 melting caustic containing oxygen 125.1190 Chlorotetracodeine 405 932 Chloi otetrainoi pliine 932 potash on 382 - action of phosphorus chloride on bleacliing pon dei 751 858 - group spectra of bodes belonging ChLomowulfeiiitea 501 Chiomometry 183 - constitution gron t h of maize in solutions desti- - Chrysanisic acid 1034 of 555 920 149 Chryscne 692 Chrysenequinone 693 Clirj sohjdioqwnone 693 Chyluiia co tiposition of blood in 740 Cznufiiga racein osa neutral crystahsable principle i n 409 Ciiichoii~~ bai k application of molecular rotation to the estiination of 8a7 - new alkaloid fiom 61 use of polarised light for the Taluation of 1095 Cinchonine sulphate product obtained - by heating m t h hydrochloric acid 931.on 778 - detection of alcohol in 163 - effect of a curient of moist air on - nitration of 611 1201 Chloiopicrin formation of by nitration of chloroform 641 Chloi oplatinite of cai bonyl 1011 a Chloropropionic acid action of am- moiiia on 127 Chloiopiopyleiie identity of as prepared from acetone 01 from ally1 iokcle 381 Chromate of chiomic oxychloride 1170 - of potash action of on thckening materials 1223 Chiomates action of on ammonium salt> 787 - of nickel 108 Chrome peen analysis of 442 Cliroine 11011 ore analj sis of 762 - cleiivatire obtained by heating Cliiomiuin compounds on cei tain 890 pot,mium &chromate TI ith nitiic acid to 1144 tute of 1082 - uselessness of ammonio ferious sul- phate for the estimation of 753 - volumetric estiniation of 436 Chlorite family 206 Chlorobi omiodhydi in 907.Chloiobromonitrin 907 Chlorocodidc 404 Chlorocrotonic acid 1046 Chloiocouniariii ( a ) 43 Chlorocournarins a and @ constitution of 64 Chloro &codeine dimorphine 932 1251 Chlorofoim action of broinide of iohne IST)EX OF SUBJECTS. 1252 Citric acid action of hydrobromic acid 1 Combustion Colunibites composition fhrnaces 438. of 1013. Ciiichonine tri-iodide of 399. on 1047. Clay burnt use of as a fertiliser 279.Clays iinprorcincnt of refractory for glass-niakiiig 868. Clem a i d unclean surfaces in yoltaic action 990. Climate effect of change of on tlie huuian ecoiioniy 411. Clorcr-hay as~imilatioii of by sheep 1074. L- percentage of fat and wax in 1193. Cod estimation of sulphur in 1089. - gases enclosed in 899. Coal-tar cresols of 531. Coating of metals with nickel and cobalt 072. manufacture of 1100. Cobalt atomic weight of l@O6. - coating of inetds with 972. - existence of in certain waters - detection of by soilium sulplio- - new precipitating reagent for 1091. - plates corrosion of by silver ni- cpnate 580. - effect of black oxide of in facilitat- ing the decomposition of potassium cldorate 1155. - testing for with potassium ferri- cyanide 757.Cobalticpnicles 389. Cobalt-ultraniariiie S60 1221. Cochineal colouring matter of 912 - spectroscopic characters of the am- moiiiacal solution of 1096. - testing of 601. Cockchsfers pi*epamtion of melolontliiiie fr0111 1201. Codeine action of hj-drobromic acid on 404. - amorphous 56. - products obtained fi*om by the long continued action of hjdrobromic acid 932. Ccerulein and Ccerulin 833. Cokc estimation of sulphur in 1089. Cold alleged action of in rendering iron and steel brittle 167 444. Collo‘id bodies containing mcrcuy 561. Colorinieter 1223. Colonred tissues of plants action of elec- tricity on ’796. Colouring matter blue in the bile 1204. - blue derived froin cserine - of cochineal 912.719. - matters new class of 833. - matter and oxalic acid recovery of from the wash-waters of maclJer in - of turmeric 152. garancin making 7fi8. - matters estiination of by spectrum analysis 602 759 760. Colours of iiatural objects theory of 1150. Comfrey prickly conipositioii and nutri- tire value of 1082. Compensation method measureinelit of 1083. the internal resistanre of voltaic bat- teiaies by the 649. Conciuctors electromotire force of induc- tion in liqtud 651. Cones use of porous hollow as filters Conine spntliesis of 143 400. Copper amount of in iron 312. - determination of in bmss by ti- tration 756. - electrodeposition of 103. - E l k i n s t o n ’ s improvement in tlie 1096. - sulphites 1169.trate 1008. - suplioseecl native 115. - ~olumetric estimation of 594. - -zinc battery K o h l f u r st’s 480. - and zinc alloy of Cu3Zn 1167. CopFing paper perrnaiteiit for printed matter 971. Coriarin mscfolin or Tutu plant poison- ous principle of 152. Coridine in tobacco-smoke 1077. Cotton cloth waterproofing of 767. - ioclised 967. Coumarilates 47. Couinndic acid 45. Couniarin constitution of bromo- nncl - dibromicle 37. chloro-derivatives of 53. - new derivatives of 37. Corn influence of food on the production of milk in the 414. Cream of tartar estimation of in wine - di chloride 43. 1211. Crcatinc growth of maize in solutions containing 1081. - hyclrocliloride preparation of from uriiic 9@2.Crenic acid in minors1 waters 921. Cresol action of liquid phosgene on 338. Cresol of coal-tar 531. Cresolsulpliurous acid 828. Cresyl-nn y litli~~lamine 105 9. - -1iurpuric acid 239. Crons t ed t i t e 9. Crotonic chloral hydrate 557. Cryptopine 1065. Crystallisations from borax 804. - from microscosmic salt 803. INDEX OF SUBJECTS. Cuniidic acid 240. Cupric oxide effect of in facilitating the decoiuposition of potassium cliloratc - sulphatcs formation of basic 1. - sulphate reaction of with potas- 1152. - valerate 1045. sium iodide 581. Cuprite formation of 208. Curarine chemical detection of 600. Curcumin 152. Cuticular substance 576. Cyanacetic acid electrolysis of 701. Cyanacetone 921. Cyanate of potassium isomeric 391.Cyanates aromatic 138. - heat evolved in tLte formation of 984. Cyanetlzine homologue of 397,. Cpnic and Cyanuric ethers compounds under pressure ’19. - ethers ncm class of 136. intermediate between 392. Cyanides double 389. Cyanide propylic normal 1032. Cyanmethinc 397. Cyanoform 901. Cyanogen absorption of by charcoal - action of on aniline 142. - Dibroinobenzene action of on triphenyl-panicline Dibromobenzoic acid 119. 363. Dibromocoumarin ( a ) 39. - chloride action of on benzylic 143. acid in alcoholic solution 388. in the 982. Cyanuric acid reaction of 140. D. Dambonite 811. Daniell’s battery constant form of 102. Daylight measurement of the chemical intensity of total a t Uatania during the total eclipse of December 22 1870 - alcohol decomposition 926.of by hydrochloric Dibromonitrobenzoic Dibromonitrosulphobenzene acid 364. 1056. - series thermochemical researches Dibromorthotoluidine 1062. Dibromopyrene dibromiclc 691. - ($1 $2. Dibromotliymoquinone 351. Dibromotoluenes isomeric 686. Dibutylamine 122 523. Dibutyloxamide 121. Dibutyraldine 401. Dicarbonyl-platinous chloride 1012. Dicarbopyridenic acid 144. Dicarbosyl-sulpliocarbaiiide 238. Dichloracetin 907 Dichloracctone (so-called) 1027. Dichloraldehyde action of phosphorus pcntachloride on 11’30. Dichlorallylene 557. - formation of from ti*ichlorocrotonic acid 233. Dichloranthracene 14. - action of sulphuric acid on 15.Dichlorethyl oxide 514. Dichlorhydrin oxidation-products of sulphur on the existence of lite 667. Diarnylene constitution of 216. Dianisol 123. Diapliorite 667. Diazo-compounds behaviour of to alka- line bisulphites 1196. Diazoresorcin hydrochloride 830. Diazo-resorafin 830. Dibcnzyl urea 928. Dibroniacetic acid formation of in the manufacture of bromal 539. Dibromamidobenzoic acid 365. Dibromanthracene 15. - action of sulphuric acid on 19. Dibroniicle of coumarin 37. 1141. Dechenite 502. Decoloration of flowers and leaves by electric discharges 881. Dehydration and its importance to vcge- table life and to fermentation 331. Delta of the hhsissippi geology of 675. Densities of liquids 94. - of saline solutions 987.Density of elements compared with that of their oxides ’798. - of some solutions 1125. Deoxybenzo’in derivatives of 539. Ieosycocleine 404. lesclo’izite 502. lcsmin 1016. 1253 letonating substances explosive force 496. of 644. Dextrin occurrence of in the lungs of the porpoise 426. - preparation of pure 1099. Diaruido-anthi-aquinone 532. Dismmonio-zinc chloride. formation of in LcclanchB’s manganese elements Diamonds occurrence of in xanthophyl- 1028. - preparation of 908. Dichloricle of coumarin 43. -of 1163. Dichloriodliycirin 907. Dichloro-dibromopropylene 558. INDEX OF SUBJECTS 1254 Dichloromononitrophenols 251 . Dichloropiperonal action of hot water on 939. Dicliloropipcronal chloride 938.Diclilorphenolsulplioiiic acids action of nitric acid on 1112. Dicliroism of iodine rapour 993. Dichromates alkaline and gelatin action of light on mixtures of 304. Didymium separation of from cerium lanthanum and yttrium 494 495. Diet and exercise effect of 011 the elimi- nation of nitrogen 412. Diethl-diacetamide 816. Diethyl glycollate 908. Diethylphosphine 715. Dicthylphosphine 569. - protocatechuic acid 829. - pyrom techin 830. Diffusion apparatus new for extraction of plant juices espccially of the sngar- beet and sugar-cane 1100. - process S ch ul t ze’s cold 1100. Digestion artificial of casein by pepsin - gaseous 186. 731. Djglycollamic acid 361. - constitution of 236. Diglpcollic acid 361. - constitution of 236.Dihyclro-tetl azo -re+orufin nitrate 831. Dilactamic acid 12% Di-amido-hFdroxy1-anthraquinone 534. Dimethylaniline and its homologues formation of 1061. Dimetliplbenzene ,509. Dimetl yloxybenzoic acid 704. Dimetliylphosphine 835. Dimethylpi~otocatccliuic acid 829. Diinethy1pseudoprop;vl carbinol 1035. Dinas-stone manufact Lire of 1099. Dinitro-ncettoluicle 681. - acridine 711. - aniline ‘712. - unthracene 222. - anthraquinone 532. Dinitrobenzeiic heat evolved in the for- mation of. 873. - heat of combustion of 871. Dinitrochlorophenetol 2 h5. Di~iitrochlorophenols 244 245 24’7 11 13. Dinitrodibromh y drin ery thritic 811. Dinitroclichlor~iydriii erythritic 811. Dinitrocliliydroxy1-anthrxquinone 535.- heat of combustion of 871. Dinitronaphthalene 695. Dinitropararoluidine 683. Dinitropjrenc 690. Dinitrotoluene derivatires from 680. - heat of combustion of 871. Dinonyl ketone 360. Diorite 112. Diovgbenzoic acid 82’7 828. I)iosytIi~moyuinone 353. Diplienyl-alloplianic ethers 394. - derivatives of 1053. - -binret 395. Diphenylene oxide 123. Diplicii~liiietliane 508 688. Diphenj lsulphocarbaniitle decomposition of by nitrous acid 267’. Dipropjl ketone (butj-rone) 386. (‘ Discharge ” process recorery of tartaric and oxalic acid from the residues of the 172. woiinds 769. Disinfecting dressing for stinking - porn clers containing carbolic acid application of 1223. Disinfection of cesspools and street gut- Dispersion anomalous 884.ters 971. - of light in silver iodide, bromide and chloride 653. - slx,ctroscopic phenomena produced by 798. Dissociation in aqueous solutions of ferric chloride 662. - -tension of ammonium carbamate 1193. Distillation of mixtures of liquids insolu- - theory of 880. - observed simultaneous in 97’5. of water and certain ble the one in the other phenomena alcohols insoluble in water 1029. - of mood 1101. Disnlplianthraquinnnic acid 20. - fluorescence of 22. Disulpl iide of ethyl 904. - of palladium 313. Disulphobenzoic acid 828. Disulphodicliloraiithracenic acid 16. - - oxidation of 20. Disnlphocouinarilic acid 52. Disulplioclibromaiithracenic acid 19. - oxidation of 20.Disulphohyclrazate of potassii ni 30’7. Disulplioplienylic acid 1055. Dithionate of lead crystalline form of 1180. Ditotyl 510. Donations to the library of the Chemi- cal Society 624,. Doubly refractive substance of striped niuscular fibi*e condition of the 735. Drainage loss of plant-food in soils re- - -water composition of from plots sulting from 276. of land differently manured 286 291. Dredgings from the Gdf Stream 319 INDEX OF SUBJECTS. Dressing composition of a French for calico 969. Drought of 1870 effects of on some of the experimental crops at Rotham- sted 430. Dulcite artificial formation of 810. Dyeing black and loading of silk 971. - wool amaranth colour with fuch- sine 971. Dye-stuffs preparation of from anthra- cene 1222.Dynamical theory of gases elementary deduction of the fundamental equa- tion of the 884. Dynamics chemical a lam in 1123. Dynamite explosive force of 648. - use of for breaking up lsrgc cast- ings 772. - and its use in war 771. Dynamites mrious 769. E. Earth-ball froin a horse 425. Eau de Labar,.aque as a substitute for chloride of lime in discharging Turkey red 172. Egg Iona - albumin nuclear structures 5’72. in the yolk of - Epidote from composition 5. of 11’72. the hen’s 746. Eggs preservation of 866. Efflorescences from Lago d’Ansanto analysis of 1177. Electric conducting power of metallic ‘ - 186. peroxides prepared by 306. - of phtlialic acid 917.- of potassium acetate 916. - of substituted derivatkes of acetic - and sulphicles discharge oxides decoloration 302. of leares Eserine Erjthrite new compounds blue colouring of 811. matter ob- and flowers by 883. - triliispmt of salts by 882. - resistance in conductors increase of with rise of temperature and - measurement sparks decomposition of 478. of phospho- Ethers and acids of arsenic 820. and arsenious acids retted hydrogen by 306. Electricity action of on the coloured tissues of plants 796. - new method of obtaining from me- chanical iorce 101. Electrisstion of air and oxrgen for the production of ozone 994. Electrodeposition of copper and brass solution for 103. Electrolysis of alkaline bases a i d sul- phates thermic researches on 985.Electrolysis of chemical compounds - arsenite 818. ’703. tained from 119. Essential oils examination of 1099. Ether tribasic acetic 515. - derivatives of polyatomic alcohols 817. - dipheiiplallophanic 394. - isodicyanic 395. - new class of cyanic 136. Ethyl alcohol formation of from acetS1 -_I chloride 228. synthesis of normal propyl - thermal effects of the combi- alcohol from 1030. nation of with bases 976. - arsenate 817. - - bases separation of by means of oxalic ether 262. - capritte 360. - chloride action of chlorine on - chlorine-derivatives of 512. 696. 726. acid 701. 1255 Electromotive and electrolytic pheno- mena dereloped by gold and platinum in solutions of alkalme and hgdric s d - - force on contact of different metals phides 481.99. - - of induction in liquid conduc- tors 651. - pover of metallic sulphides 652. Electroplating the interior of metallic pipes 867. Electro3tatic induction and decompo- sition of water relation between 101. Electrothermic methods of analysis and synthesis 155. Elements considerations on the system of 483. - density of compared with that of their oxides 798. - relation of the spectral properties of to their physiological properties 1078. Embrithite from Nertschinsk compo- sition of 671. Energy Voltaic thermic researches on 1134 1136. Eosite 500. Epichlorliydrin action of sulphuric acid on 125. EpioxyphenFlhjdrin 1040.Ergot chemical composition of 724 Erucic acid action of fused potash on INDEX OF SUBJECTS. 1256 7 glycerate 908. Ethyl chloride monochlorinatecl 923. - gallate 821. - iodide action of pliosphinc on - effect of a current of moist Fats 1198. aniinal extraction of 109'7. 569. tion of 872. of 513. - snlphicles 904. 1177. scale 930. water 1027. 903. - structure of 1027. - sulphetliers of 1189. F. - miouut of digestible in fodder Fat determination of in soft soaps 969. - air nitrate on 197. heat erolvcd in the forma- - 476. ineking and soliclifjing points of - o d e chloro-substitution products - regetable elementary composition - pnrification of 459 460. of 1192. Fatty acids in the fusel-oil of Hungarian - wine constituents 359.of beer yeast 942. - ketones 561. Fcecling change of material in the adult sheep nnder uniform 729. Belspar from Blaiisko in Moravia Fermentation acid of wheat-bran 545. ' - trinitro-orcinate 358. Et1i-j-lbrucine periodides of 399. Eth~lcinchonine tri-iodide of 399. Ethyldiacetic acid action of phosphorous pentachloride on 812. Ethyldibenzoin 536. Ethyldibutj 1 oxanlate 122. Ethylene bases 141. - preparation of on the large - alcoholic and mode of nutrition of - bromide decomposition of by - the yeast production plant 426. of ainmonia in - ioclide actionof on acetylicle copper - carbonic and alcoholic of sodiium 916. acetate and animoniLini oxalate 511. - new theory of 89'7.of fruit 836. - -dipei.idyl-diauiiiie 1063. - -dilactainic acid 12'7. - -1actaniic acid 127. - -lactic acid piirification of 361. - -protocatecliuic acid 1031. Ethyl-ether c1iphenylallop'7a~ie7 39 4. Ethylic-eth~lcliacetnte action of ainmonia on at high ternperaturcs 816. Eth~-lidenc-lactic acid 546. Ethyl-lactic acid 127. E t h j lox.-osalylchloride 820. Ethyl-phenyl ketone oxidation of 1058. Etliy1-phosp1iine7 715. Ethyl-quinine tri-iodide of 399. Eugcnol 704. ' Euosmite distinction of from rosthor- iiite 1175. Ernporation and condensation of solid bociics length of time required for 879. Exalb nniin 107 1. Excrement of the common bat 424. Exercise effect of on the elimination of nitrogen 412.Expansibility of some solutions 1125. Expansion of gases rariations in the - of liquids 96. coefficient of 475. Explosive force of gunpowkr and other detonating substances 644. Extmet of meat iiem base from '716. Eudiometer with iiiovable spark wires 304. - - phenomena considered in relation to clehyclration 336. Ferments behaviour of with phenol 840. Fermenting mashes influence of second- ary extract formation in 1223. Ferric chloride dissociation in aqueous - coumarilate 48. solutions of 662. - h~driltc 497. - iodates 108. Peri-icyaiiide of potassium action of - light on use 303. of as a test for cobalt nickel and manganese 757. Ferromanganeee estimation of man- ganese in '756. Fcrtilising inntters necessity of adding thein to the land in qunntitics larger th:m those which are removed in the cl'ops 252.Filters use of porous hollow cones as 1083. Fire red grrcn and blue 970. Fire-elaj s 9GO. '' First Rnnnings ') from the alcohol nimiufacture observatibns on 1187. Fish-roes nlbuniin from 968. Flames rererscd 187. Flesh-juice of Phocmm comin~iiiis 426. Flour exaiiiiiiation of 16& 858. Flowers decoloration of by the elcctric diselinrge 883. Fluobenmne 368. INDEX OF SUBJECTS. - 21. Fluobenzoic acid 368. Fluorescein 911. Fluorescence 482 798. Gases absorption of by soils 853. - of anthracene and its derivatives - ltutornatic thermoregulator for use 1257 sidered with especial reference to the diffusion of 884.in the preparation of 639. - comprcssibility and dilatation of - effects of pressure on the absorp- of peppermint oil 154. Fluorescent solutions colour of 992. Pluorescin 834. Fluorine-compounds application of cer- tain to the preparation of frosted glass for photographic purposes 166. Fodder amount of digestible fAt in 1192. Food influence of on the production of - supplies of Paris during the late milk in the cow 414. alcohol 343. siege 459. Formic acid conversion of into methyl - - synthesis by means of nascent - tion resulting and refractive from power the explosion of 133. of Formulae structural 331. Fossil bones determination of ossein in - simple spectra of 991. - spectra of incandescent 483.- resin perhaps related to the amber- - theory of the molecular motions of producing Flora 892. Francolits from Cornwall 3. Freezing of water 795. Freislebenite 667. Fruit fermentation of 836. Fuchsine djeing wool amaranth-colour - refraction-relations of 884. with 371. 1219. - unequal heat-conducting power of 859. 733. Fungi nutritive and assimilative pro- cesses in 1205. Furnace temperatures measurement of by increase of electric resistance in conductors with rise of temperature 4’78. G. Gahnite 115. Gaize use of for the preparation of alka- line silicates 763. Galactin 1071. G-allein 699. - and Gallin 833. Gallic acid a derivative of 374. - formation of 706. - oxidation of by electrolysis 300.918. - ethers 821. Gallin ’700. Galvanic battery. See Voltaic Battery. - elements apparatus for the eonve- nient arrangement of certain combi- nations of 884. Gasems mixtures force of detonating - motion and equilibrium con- VOL. XXlV. 874. tioii of by charcoal 76. - elementary deduction of the funda- mental equation of the dynamical theory of 884. - enclosed in coal 899. - internal motion of 797. -law of Dulong and P e t i t relat- ing to 300. - molecular volumes of 300. - relation between chemical composi- nitroglycerin method of determining 884. - variatims in the coefficient of ex- 298. pansion of 475. Gas-washing and gas-absorption appa- ratus 797. Gaultheria-oil constitntion of 959. Gelatigenous tissues occurrence of in invertebrata 849.Gelatin and alkaline dichromates action noplastic work ’767. - relief-forms silvering of for galva- of light on mixtures of 304. - solubility of in glycerin 724 Gelatiniforoi matter 1071. Geraniol 261. Geranium oil Indian 261. Germination of oleaginous ‘seeds 1207. of seeds experiments on 748. Gilding of silk 450. Girona resin distinction of from ros- ..- thornite 1175. Glass frosted preparation of by means of certain fluorine compounds 166. - silvering of 859. - vessels soiled with petroleum cleansing of 972. use of in brewing 868. Gluconic acid 547. Glucose-containing sugars examination - of 91. Glucosophosphoric acid 924. Glue for paper labels on bottles 971.Glutamic acid occurrence of amongst the decomposition-products of pro- teids 721. 4 P IXDEX O F SUBJECTS. 125s Tzmatolin $37. h i i i ~ t o i ~ l i i i 541. 1mmtoi)orpIij rin 737. Ia3llloolll.olllcl~en 738. I ~ i i i o ~ l o b i n constitution of 739. Glycerate of ethyl 908. Glycerin antl alljl conipounds relations between 906. - some deriratives of 907. - derirntives C311jC1J i>oineris111 of 907. __ clcconipo~i~ion of in t h e n c e of o-ygen 738. - distillation and boiling point of F4. - thermal eKefects of tlie combination of nit11 bases 9 7 6 Glycerj 1 cliloronitrosi~lphnte 907. Glycocl~olic acid iml)roved iiietliod of &I> coiili!osition antl digestibility cf the substance adsociatecl with cellulose in the fibre of 576.percent:ige of fat ancl wax in 11%. I c a t of combnstion of cadmium oside influence of ciystallisat ion upon 8'70. - of m:ignesium. indium cnd- mium and zinc '793. - of iiiagnesiuiu and zinc 6-13. - -conducting pov er of gases 298. obtaining 382. Gljcollate diethylie 908. GI~-collic acid on a n aroinafic 375. Gold ahsoi*pti,m of sulpliur by 765. __ in arsenical pj-rites of Iteichea- stein 203. - and silrer iml)roI-ccl proccss of cs- tracting from the :irseiiio>.ulpliitles of lend copper Src. -147. -~ R i v o t ' s proc*ess of extracting from their arcs 1219. - from T-ancou~cr's Islancl 203. __ -rub! gltis~ 972. Granites of Scotland aiid Donegal 208. Graiiuljtes of Snsoiiy 807. Grape-seed oil 703.Grape-srigar dccoiiipo~i'io:i of by cupric oside in alkaline holii:ioii 914. Grapliitc froin Stpria 2'33. Green fire 970. Grccnstone 112. Gnniacuiii tincture of as reagent 581. Guanidine prcparation of 263. Guanitlines spthesis of substhitecl 143. Guanine in the urine of tlie heron 81.5. Gulf-strcain rocks and ot!ier dreclgings from 310. Giunbelite 325. Guni tlierinal effects of the combinations of n-ith bnses 975. Gun-cotton 1'71. __ explosi~e force of G i 8 . - heat erolycd in tlie forniatioil of 8i3. Guiipo"rdcr esplosire force of G 6 4. Guttn-pcrclia cl-~ tiiig of 11 it11 aiiiline- colo~irs 971. Gypsuin of Wascan-ciier 1180. H. IIsematin action of reducing agents on - sulpliiiric acicl on '736.- - clikengaged in the reactions of me- tallic oxides effect of calcination on 869. - evolved or absorbed in the solution of socljiiin phosphate containing clif- fcrent quantities of u atcr of c r j stalli- sation 1131. - in the combination of alcoliols n itli bases 976. - in the formation of aqueous - in tlie formation of various solutions 1'74. nitrogen compounds 6 G . - influence of on tlie eTrolution of osjgcii by watcr-plants 1080. - ncn facts concerniiig the cominuni- - of ncutralisation 875. cat1011 of 112s. of bases solublc in water 4'73. - plienoinena accoiiipanjing the transformation of nitrogen tetrosicte into nitric ncicl ancl the introtluctioii of t h e bodies into organic colri- -__ poun(ls 871.- specific of saline solntioiis 468. Hen's egg nuclear structures in the J olk of '716. Herbnceons regetables. See T'egctables. Hcroii. gii,iiiiiie in the urine of 84%. Hc~n11;r-tlroplitIi~lic acid 373. Hesaiiiitl:ill,uni~ii-sulpliuric acid 410. Heslij tlropj rmc G91. Hcxiotlillc of amFlbruciiie 400. Hibiscus escdrntzts ash-constituents of the heeds of 4'79. IIiiiinla~ a tea 571. 11 o fin a n n's t j rosine reaction 406. JIorse analysis of an eartli-ball and in- trst:iial calculus from 425. Hnmm econoiny effect of change of cliinate on 111. Humate of ammonia 73.8. Huniitr. crystnlliiie form of 506 HT~YXC~,IB action of on tlie quiiiiiie a1- lido ds 931. 737. - bc\lia\ iorir of I\ lien trentecl n-it11 pl1 ospl 1 or0 I I s cliloricle containing frec ~'llo.phorlls 73s.- lpi*epr'ntioii of from crystals oj h:miiin '736. IXDES OF SUBJECTS. Hy Jrioclic acid specific gravity of aqae- ous 6 5 . HJ d ro - a c rid ine 7 1 I. - insoluble 712. Hydro-amido-tetrazo-rcsorufin hgdro- 1027. chloride 831. Hytl~obeiizoiii 38 4. ITydrobroiiiic acid action of on citric acid 1047. - action of on oxide of tricthyl- pbosphine 637. - specific gravity of aqucous 486. Hydrocarbon C7Hi4 and its derivatives Hjdrocarbons chemical structure of some non-saturated 214. - new modes of formation of 895. - series of aromatic 505 688. - of the series CnlSn + 2 researches 011 896. HJ drocldoric acid action of on osscin - action of on oxide of triethyl- 733.’ pho;pliiiie 63 5. aqueous density and expun- -__ - beliaviour of arsenic acid to- sibility of 1127. pansion of 95. fl+-ocotarnine 1065. Hydrocpnic acid action of chlorine on hi alcoholic solution 136. - aqlieous formation of urea by decomposition of 1067. - - tlicrmal effects produced in the €ormation and decomposition of 982 HSdro-tliazo-resopufin liydrocliloride 830. Hydro-electric forces measurement of 101. Hyclrofluoric acid estimation of free I ~ y d r o p i action of on iron o d e 103. - wards 661. spccific heat density and ex- Ice calorimeter 180 643. Igaqnriiie 409 Illuminating gas composition of perma- nent ohtained from the decomposition I. of petroleum naphtha 864. Ilmenium (?) constitution of compounds Ilsemanite a new molybdenum salt 1173.Ilraite of Nassau 1180. Inciiiei-iltiiig aiiiinal and vegetable sub- stances new method of 855. Iiidigotin new solrent for 268. - solvents for 568. Indium 664. - atoiiiic weight of 182. - heat of combustion of ’793. specific heat of 189. 854. - action of on nitric acid 885. - action of nascent on bitter aimond - chloritle gaseous analysis of by oil 384. inl’ans of iron 156. - gas pwparation of 16%. - p r ~ ~ ) a i ~ ~ i t ion of pii1-e p Iiosphore t t ed 305. - sulpliiilc coiitaining arsenic 889. iodi:lc by 1009. - e-timation of in preaeiice of carbon diositlc 583. - teluperatwe of dccoil;positioii of 859. ammonia bases 957. - rolumetric estimation of typical in Tods(es.ferric 108. Iodacctauiide 160. I Iodeth$ene-propionic acid products ob- -- Iiiii!oLd a soluble modification of inplin 348. Iiirrrtebrata occurrence of gelatigenous tissues in 849. acids 911. sition of 149. 1259 Hydromellitic acid products obtained by heating with sulphiwic acid 372. Hydropipero’in action of acetyl chloride on 934. - action of nitric acid on 935. Hydropyromellitic acid products of dis- tillation of 373. Hydroquinones red phthalein formed by heating with phtlialic aiid sulphuric Hytlrothpoquinone 351. Hydotimeter water analysis with the 583. Hy<lroziiicite of Auronzo 893. Hpsciiie 149. Hyoscinic acid 149. H-j-oscyaniine preparation and compo- Hypersthene identity of amblystegite Wltll 1179.- iridescent lamin% in 1174. Hypersthenite zircon in 205. Hypobromite of sodium estimation of urea by means of 162. Of) 807. I - Iucluctioii electromotire force of in liquid conductors 651. Infusorinl silica use of 764. Inorganic constituents utilisation of certain in the animal body 1072. liiosite. occurrence of. in the lunm of Iiitestiiial cdlculus from a horse 425. 4 ~ 2 INDEX OF SUBJECTS. Iron OYCS separation and utilisatioil of - osidation of 198. - and its oxides decomposition of obtained from roasting 449. - salts the cause of sterility in peaty soils 279. - smelting chemical phcnomena of sium iodide 591. water and mud of 930. Isobiurct 396. Isobntylanisol 221. Isoliydrobenzo’in 385.Isohychpipero’in 935. Isomeri5in in the beiizcne series 680. Isomorphism of sodic nitrate and calc spar 197. Isonitrilcs new mode of forming 13’7. 1sophth:~lic acid 826. - transformation of bromobeii zoic acid into 367. Isotetrachloro - diacetone - cyanhydrin Isosulpliocyanate of potassium 391. 922. J. Jaulingite distinction of from rosthor- nite 1175. Killas 110. 12 60 tained by boiling with milk of lime phosphoric acid in 1219. ‘Iodide amylic normal 1034. - of cyanogen heat evolved iu the - oxide action of hydrogen on 103. 362. of copper 903. - formation of ethylene of 985. action of on acetylide cttrbonic oxide by thc joint action of - of potassium reaction of with cu- - 79s. pFritcs utilisation of the residue - propylic normal 1032.pric snlphate 581. - of silver decomposition of 313. - reduction of by hydrogen - refraction and dispersion of light in. 653. - 446. volixmetric estimation of by potas- - of sodium compound of with canc- Irrigation canals nitrous acid in the 1009. sugar 272. Iodine action of on insoluble sulphides - chloride of 197. 885. nide 763. - contamination of with iodine-cya- Isobutylbenzene Isobntylic alcohol 220. derivatives of 121. - detection of in the form of metallic Isocyanate of potassium 391. Isobutyric acid oxidation of 126. iodides 1084. - -green on alpaca with a-ater-glass Isodinnphthyl 118 4. Isoclicpnic ethers 392. - 1098. vapour dichroisni of 993. - volumetric analysis of $36.Ioclised cot’on 967. Iodobenzoic acids isomeric 702. Iodochromate potassic 801. Iodoform action of bromine on 7’78. ,d Iodopropionic acid 235. .__- action of ammonia on 127. Iodosulphates lnteo- and rosco-cobaltic derivatives of 1169. Iodosulphuric acid and iodosulphates 1164. _I Iridescent laminsr in hypersthenc 1174. Irish sea water of 506. Iron action of water on 103. alleged action of cold in rendering brittle &4. - -amount burnt 790. of copper in 312. - condition of carbon and silicon in silicon in 1212. - estimation of sulphur in 159. - estimation of phoq3horus in 159. of 167. - galranised estimation of zinc in - 161. and manganese alloys of tlicir production and application to the - cams meteoric 1180.three masses of 1020. - from Wisconsin 329. K. - 106. dry process €or the estimation of Kaolins comparative pyrometric valua- - effects of cold upon the strength Ketones tion of fatty 450. 561. Ketones oxidation of 1057. Kiescritc 1179. L. manufacture of steel 169. - meteoric from the desert of Ata- - conversion of acetone into 919. Lactic acid 127. - froin flesh 362. - formation of from sugar without fermentation 546. 1016. dioxide influence of in facilitating the decomposition of potassium clilo- INDEX OF SUBJECTS. Lactic acid heat produced by the com- bination of with bases 980. Lactonic acid 547. Laud conditions of fertility of 278. Lantanuric acid 1200. Lanthanum separation of from cerium didymium and yttrium 494 495.Lanuginic acid 381. Laudanine 1064. Laudanosine 1065. Lead alloys of 1166. - antimonite and antimonate crystal- line compounds of from Constantine - basic pyroranadate 34. - chloride with lead orthovanadate LTight sensitiveness of haloid silver-salts - -printing improvements in 1100. L i p i n and cellulose comparative nutri- tive value of 575. - function of in the structure and to 302. development of plants 575. - Lime prerention plants 1209. of injury from the pre- sence of in brick clay 765. - use of as manure 278. Limestone oil-bcariiig of Chicago 674. Linen materproofing of 767. Liquid conductors electromotive force of induction in 651.Liquids of low boiling point condensa- tion of 441. _I_ phenomena observed in the distilla- tion of certain mixtures of insoluble the one in the other 975. - specific heats densities and expan- sions of 94. - thermo-electric action of 476. Lithia-mica occurrence of in the Fichtel- gebirge 1180. Lithium minerals behaviour of before the spectroscope 312. - solubility of in liquid ammonia Litkiophorite 205. 310. Luminous tubes with exterior electrodes 1141. Liineburgite 326. Lung enormous proportion of earthy matter in a human 424. Luteo-cobaltic iodosulphate derivatives Lutidine in tobacco-smoke 1077. of 1169. 1880. 1081. Malting without germination 458. Mammals blood of 736. Mammoth proportion of ordinary soluble osseiii in the bone of a 734.uses of 868. - 34. rate 1155. - molybdates and vanadates of 500. - orthovanadate 54. - oxalate calcination of 1157. - and platinum alloy of 202. - vanadates 33. Leaden bullets melting of by impact on iron plates 798. Leadhills new mineral from 500. Leads of the Upper Hartz composi- tion of 604. Leaves decoloration of by electric dis- charges 883. - green colour of 654. - transpiration of watery fluid by 850. Lecture experiments 186 187 304. Leidenfrost’s phenomenon 974. Lerp-aniylum and lerp-manna 543. Leucine compound of with cupric oxide - behavionr of with the nitrates of 720. mercury 720. - obtained by heating serum albumin with water 733. - from vegetable proteids 719.Leuklmmia blood and urine in 421. Library of the Chemical Society dona- tions to the (l870-71) 624. Light-absorption connection of optical and chemical 302. Light action of on inixtures of alkaline dichromates and gelatin 304. - on red prussiate of potash - from clouds constant colour and intensity of 183. - effect of on halo’id salts of silrer 303. - influence of on the evolution of 481. oxygen by water-plants 1080. - refraction and dispersion of in sil- Manganate of potash preparation and Man blood of 736. ver iodide bromide and chloride 653. 1261 M. Magdala-red dyeing of silk with 1223. Magnesia separation of from potash and soda 955. Magnesium burning of in carbon dioxide - heat of combustion of 643 793.- oxychloride hydrate of 1168. - sulphate springs of Hungadi JBnos near Ofen 1021. Magnetic pyrites 326. Maize water-culture experiments with INDEX OF SUBJECTS. ?vfeta,lg di~solntion of rrit!iout chemical actlcll 309. - retluctioii of fmm soliitioii by 1 3 1 ~ - tallic sulpliidcq a d relation of this to ~feta-ortlio-tolglenc-dininine 565. RIctnstsiiiiic cliloritle formation of 03G. JLet:itliioli2.clrobeiizoic acid 371. 3Ietatolylacct,amide 564. ?iIctatduidine deritntives of 563. 6%. 3Ictcoric iron three inasses of 1020. - f ~ o m tlie desert of Atacaiiiz 1180. - froin Wisconsin 320. Meteorite (Crsnbourne) carbon from 1023. - of Daiirille in Alabama 206. - tl:c Fraiiklin from Alabama 320. - of Searsiiiont YIaine 1180.Meteorites geology of 808. - meta?iiorphium in 503 504. __ mineral constitriciits of 116. - nrsenate 818. - arsenit,e 819. - caprate 360. - iodide action of phosphine OH 569. ___ trinitro-oreinate 358. ~let~li~lheiizoplieiiorie 689. RIetli! lbrucine pentiodide of 400. MetIi~-lbrucinc tri-iodide of; 399. Mctliplcinclioniiie and -cinchonitlinc tri- iodides of 3!19. Metli) lcliplien~-laniiiie 10G0 1197. X k t l i ~ lene iotlitles prepratioii of 10%’. Bictlij-1-et her dipli cnrlalloplianic~ 39 4. Rlcth~letli~lcne-s~~Ilphin-nitratc 1189. phenyl-group in bIctlirlisatioii of t!:c aniline 1060. RIctli~-lijctliioiiic acitl formation of 533. Mctliglplienrl ketone oxidation of 1037. nIctlij-lplio~pliiiie 835. ilIetlir.ldtr~-eliniiie tri-iodide of 399.~ (~)iid~wse(l 1 1 ~ 1 ~ ~ Mica iiietliod of colonring 862. Milk :uialj sis of 165. - composition of aiicl plp:ir:,tioig t ~ f art i fi c-i al tc (Xi. 165. - coiistitntion of 838. - iiiflucnce of food 011 the ~ I ’ O L ~ L I I of iii the cow 414 __ +iigar in a I egetable juice 91.3. 1262 Manganese amount of in certain mine- i d s 11’77. - in the blood 1074. - estimation of in spiegeleisen and - ferromanganese oxides effect 756. of in facilitating the natil tlie occitri*cnco c state 604. of such inetds in tlic - tlicrino-electric action of 476. decomposition of potassium chlorate b~ - salts growth of maize in SOlUhlS Metmiit Mctzmidobenzoic ro-ortlioaccttoluicle ncicl 365.683. heat 1155. - -ortliotoluicline 683. containing 1081. - tc sting for with potassium ferri- ~\.leta-ortlio-tolLtrlciie~i~ii~ine 653. cyanide 757. Manganous valerate 1045. Mangolds assirnilat ion of by slieep 1074. Mannite thermal effects of the coinbi- nation of with basw 977. Manometer for high pressures of gases 482. Manure analysis of a universal 85 4. Manures modification of composition of by soils 293. Marl influence of. on the forination of carbonic acid and nitric acid in soils 751. - usc of as manure 278. Meadow-hay assimilation of by sheep 1074. - percentage of fat mid wax in 1193. 3Ietiijl alcohol conrersioii of formic acid Meat-extract new base from 716. into 313. Melaphyres of the little Calpathians 321.Mcllitic acid 3’7’2. Melloplianic acid 372. M elolonthine 1201. Melting p i n t s of organic bodies appa- ratus for estimating 9’7’3. - and solidifying points of fats 476. Menegliinite new locality of 671. Mercaptan perchloromethylic 344. Mercurous coLiniarilute 48. Mercury apparent expansion of 483. - collo’id bodies containing 561. - occurrence of amorplious sulphide of in the niiiieral kingdom 671. Mesitylene sulpho-acids of 376. Mesolite 1018. R~cta-iodotolueiie 682. Metaldehjde presence of in the ‘‘ first ruiinings,” obtained in the manufac- ture of alcoliol from sugar-beet 1188. Metallammonias and Metallaninlines 189. Metallic oxides. See Oxides. - vanadates 28. - vapours reversal of the lines in the spectra of 1142.Metals action of sulphnrous acid on ccr- - coating of with nickel and cobalt ?tIilleritr 11 7fi. tain 656. 972. ,l.linerRl lien froiii Leadhdls 500. INDEX OF SUBJECTS - manures and ammonia salts dif- Motion Monzonite and a new equilibrium mineral species witli special 1178. Mineral new from Burmah 114. ferent effects of as fertilisers 283. reference to %he diffusion of gaseous Mineralogical notices by N. 8. Maske- l y n e a n d W. Blight 1. Morm 884. mixtures red compound obtained by heat - Mineral waters. See Waters. Minerals amounts of barium and man- pliui-ic acid 912. 1263 ing with plitlialic anhydride and sul- Morphine ace rate decomposition of in - decomposition of by sodium and ganese in some 1177.potassium 12 10. Mississippi Passes mud-lumps of the 675. tallisable sugar in the generation of - action of chioride of lime and hy- drochloric acid on 265. - action of nitrous acid on 264. - action of zinc cldoride on 264. - part played by salts and uncrys- - and strychnine determination of Molasses analysis of '762. in presence of one another 443. solution 148. Mucin of the submaxillary gland 949. Mud of irrigation canals nitrous acid in 454. Molybdate of ammonium precipitation of' small quantities of phosphoric acid 1092. by 157. Molybdatcs of lead 500. - determination of in plumbic Molybdic acid basicity of 199. molybdate 758. - recovery of from residues -~ ntilisation of for the colour- iiig of silk 867.Monacetorosaniline 1062. Monamines secondary formation of by the action of bases having the formula CnHan-7.Hpn 1059. Monazite 324 506. Monethylphosphine 115. Monobenzyl urea 928. Monobromobenzoic acid 363. transformation of into isoph- thalie acid 367. Monobromophenetol 1040. Monobromothymoquinonc 352. Monobromotoluenes action of sodium -__ on the t,wo isomeric 684. Monochlor-athoxyl-ethylene 515. Monoehlorhydrin of glycol action of sul- phuric acid on 125. Monochlorides of diatomic and bibesic acids 820. Monochlorinated ethyl chloride 923. Monochloroerotonamide 1047. Monochlorocrotonic acid i046. - chloride 1047. Monochloro-dinitrophenols 249. Monochloro-monorritrophenoIs 849. Monoehlorotetracrylie acid 813.Monoethylphosphme 569. Mononitro-anthracene 222. Mononitroehrysenc 693. Mononitronaplitl~alene 695. Monitrorcsorcin 831. Moiiosul~hodiphenylic acid 1053. Moiioxybcrizoyl sulphur urea 571. Montcbrusite 892. hlonticellite 506. 950. Muddy matter precipitation of by weak saline solutions 750. Mud-lumps oi the Mississippi Passes 675. Mulberry leaves from Turliestan 435. Murexid spectroscopic characters of the ammoniacal solution of 1096. Muscular fibre striped condition of the doubly refractive substance of 735. - tissue nutrition of 574. Must aeration of 458. Dilust a d detection of turmeric in yellow - oil practical observations on 835. - seed white new constituent of 761. 408. N. Nadorite 11'78.Naphthalene group aldehyde of the 1057. Naplithazarin 355 356 698. a-Naphthol colours 911. Naphthol compounds 1041. @-Naphthol nitration of 355. Naphthol reactions of with oxalic acid phthalic chloride and pyromellitic acid 1042. Naphthylamine hydroeliloride action of aniline and toluidine on 105Y. a-Nap~ithylcarboxylic acid oxidation of 920. Naphthyl cpanate 139. - -phenylamine 1039. - -purpuric acid 238. - -urethane 139. Nephrite 324 673. Neutralisation hcat of 875. Nickcl. atomic weight of 1006. - eh,*omate 108. INDEX OF SUBJECTS. S264 - Nickel determination coating of metals of by with the 972. battery - 1091. separation of from zinc 955. - testing for with potassium ferricya- nide 757.Nicotine amount of in snuff and tobac- 1008. co 1075. - not present in tobacco smoke 1077. Nigella seeds or black cuinmin 1067. Niobic acid crystallised from borax 806. - compounds composition of 1013. Niobium constitution of compounds of 807. Nitrate of allantoh 1198. - of silver alkaline reaction of 109. - corrosion of copper plate8 by - of soda loss of by drainage 292. Nitrates origin of in potable waters 62. Nitrtttion of chloroform 641. Nitric acid action of on the dichloro- phenol-sulphonic acids 1112. - action of hydrogen on 885. - oxides heat evolved in formation - comparative experiments on - supplied to the soil as manure and not recovered in the crop 577. the delicacy of the sulphate of aniline and brucine reactions for 441.7- compound of with sulphuric - acid 656. detection of by means of bru- cine 581. - estimation of in potable Nitroglycerin explosion of 347. - explosive force of 647. 184. - heat phenomena accompany- ing the transformation of into nitric acid and its introduction into organic compounds 871 872. I_ heat evolved in the formation of - estimation of 753. - heat-phenomena accompany- waters 754. ing the introduction of into organic mation of in soil 751. - influence of marl on the for- compounds 871. - - modification of Schloesing’s method of determining 439. - ethers formation of from the cor- - toxicology of 1078. - responding heat alcohols evolved 1036. in the formation Nitronaphthalenes Nitro-metaiodotoluene 095.682. mation of 872. of 871. Nitrification natural 1000. Nitrite of silver action of heat on 85. Nitro-acridines ’710. - -anthracenes 222. Nitrobenzene heat of combustion of 871. 873. Nitrobenzoic acid heat evolved in the formation of 8’74. Nitropyrene 690. Nitroresorcin 831. - heat evolved in the formation of Nitxotoluene Nitrosulpliomesitylenic heat of combustion acid 3% of 871. 871. - -orthotoluidine 563. Nitro-orthoacetoluide 563. Nitrous acid action of,on morphine 264. - -action of on the so-called sulpho-ureas 267. action of on urea in aqueous Nitro B-parabromotoluene-sulphonic acid 1055. Nitrochlorophenols constitution of 24 8. Nitrochlorophenolsulphonic acid 3 3 20.Nitrochrysene 693. Nitro-compounds aromatic formation of in alcoholic solution 222. Nitrodibromotoluene 1062. Nitrodichlorophenol 24f3. Nitroethal 1036. Nitrogen of manure accumulation of in the soil 284 - of the albuminoi’ds decomposed in the body excretion of the 943. - -compounds heat evolved in the - in coal 899. - conjugated compounds of pentato- formation of 645. - effect of diet and exercise on the mic 483. elimination of 412. - group spectra of bodies belonging - heat evolved in the formation of to the 1144. - 1001. loss of by drainage 284. - as nitrates and nitrites in drainage waters 291 295. of 1002. - tetroxide absorption spectrum of 872. - method of determining the gtms - and various dynamites 769.- resulting toxicology from of the 1078. explosion of 1219. Nitroglycol 1036. Nitromannite heat evolved in the for- Nitronaphthalene heat of combustion of - - basicity of 200. solution 265. - - existence and action of in soil 852. IWDES OF SUBJECTS. 1266 O d e s of cerium 495. - effect of wtrious metallic in faci- litating tlic clecoinposition of potassium clilorate by heat 1155. - metallic electric conductivity of - influence of the calcination of 302. eoine on the heat disengaged in their reactions 8G9. Oximiclo-dihyJrosr1 -nnthraquinone 53 4. O s j ~ a ~ l l ~ l i o r i c anhydride 549. Ospunphoronic acid 1050. Ox! chloride chromic chroinate of 1170. - of magnesium hydrated 1168.- of phosphorus new 1160. - of zircoiiiuin 1000. Oy-chlorides of silicon 1000. Oxygen electrisation of for the produc- tion of ozone 991. -influence of light and heat on the e-rolution of by water-plants 1080. - intimate action of substances which assist the ci-olut,inn of from potassium chlorate 1151. - Mallet’s process for the preparation of 859. Ovyhjdrogen light 9‘72. OxTlepidin. 537. OxFpicric acid 227. Osjthpoquinone 352. Ozonc forniation of in rapid combustion 483. - production of by elcctrisation of air and oxygen 994. P. Painting ground for stereochromic pic- tures 1222. Palladium disulphide 313. - and lead aLlojs of 1166. - place of in the electrical series - subsulphide 315. 318.Palm-oil analysis of 762. Paparerme 1065. - action of zinc chloride on 265. Paper-labels on bottles glue for 971. Para-aeculetin constitution of 960. Parabromo-mctanitrotoluene 681. - -metatoluidine 681. 8-Yarabromosul~hotoluene 1055. Parachloro-metanitrotoluene 680. Parafin of high melting point 1183. ___ production of olrfines from by dis- tillation under pressure 346. Parzffim 896. Paraioclo-metmiitrotoliL~ii~~ 681. __ -metatoluidine 681. Pnralbuinin ’722. Paraldeliyk presence of in the “ first runnings ” obtained in the nianuf’ac- ture of alcohol from sugwr-beet 1187. Para-nieta-tolylenediamine 565 683. - -ortho-tolj lenedianiine 565 683. P x a o \ pbenzoic acid new source of 363. P;iraeiill)liobeiizoic acid ’704,l Ptwatolu Itline deriratires of 681.Psrvoline in tohacco-smoke 1077. Peat examiliation of a wyy compact Swetlisli 2 11. Peaty soils sterility of clue to the pre- sence of ferrous sdpliate and iron pyrites 279. Pentacliloretliyl oxide 51 5. Pentachloride of phosphorus. See Phos- phorus pent2cliloride. Pentiodides of the allialo’ids 400. Pcppcrinint oil fluorescence of 154. Pepsin 733. __ artificial digestion of casein by 731. Peptones 410. Perch loro nie t 11~1-m ercaptan 3 44 Yeriotlicles of the dkaloids 929. - of quinine bases 39s. - of the strychnine bases 399. Pernianganate of potash preparation mid uses of 868. Peroxitles prepared by electrolysis 306. Persen p-ati.ssimn 727. Peru g~iiii as tliivkening material fo printing 768.Peruyian bark. See Ba k. Petroleum 1021 1025. - oils influence of sunlight on 1025. - production of in dmcrioa 868. Petroleums from Russia physical pro- perties and heat,ing powers of 453. Yhenetolsiilphonate of potassiuiii action of broiiiine on 1040. Phenol action of on ammonia 123. of liquid phosgene on 337. - heliaviour of albuminous matters ancl ferniexts with 840. - bromine-water as a test for 1216 - colours 910. - transformations of 122. Phenols thcrnial effects of the combiita- -__ tion of with bases 978. Phenolsulpiionic acid from sulphanilic acid 826. Pheiijlaininonium colsalticyanide 390. Plienyl-benzyl ether 909. Phenjlene-diamine new 562. Ylienylenic etlicr 123. Phenj l-g~uup in aniline rnethylisatioil of the 1060.- -liycl~-oxyls a reaction of free 959. I’henj lie clicj anate act,ion of pheliol on 391. Pheqlic ethers 1(%0. 1?;D%S OF Plienpilic sulphocyanate action of acetic acitl on 140. - ~allthi~1nidc 267. Plicn~.loricle-disul~~liuric acid 125. P1 ienylpur puric acid 2 39. Plieiiyl,ull.,h:ii,ic acid conditution of 959. P1ienylsull)liurous acid from sulpliaiiilic acid b X . Pheiirltric.tliide stnnnic 22.5. Plienpluretlianes formation of 138. Plilorogliicin yellow coinpound obtained by heating xith phtlialic anliyitride and salpliuric acid 912. Phocmzn commimis flesh-juice of 4.26. Pholerite 10. Phosgenc action of liquid on some or- g m i c conipoLinds 337. Phospliates of bone-ash solubility of in carhonic n-ater 80.- their effect in promoting the dc- relopwent of fungi in potable waters of sotliuni action of on aimnonium salts 787. Pliospliatc of sodium containing dif- ferent quantities of water of crystalli- sation anionnt of heat evolved or absorbed in tlic solutioii of 1131. - ’71. Phosphates soluble causes of high and lorn estimations of 586. Phosphine action of on the iodides of ethyl and methyl 569. microco>mic salt 803. Phosphozirconic acid crpstallised from microcosmic salt 803. - clerlvatiws of corresponding to Photography coloured 867. -~ on zinc-ethyl 668. etliylaiii ine and cliethylaruine 7 13. - primary axid secondary of the nietliyl series 83-1. Phosplioniobic acid crystalliscd from electric sparliq 306.microcositiic salt 804. Phosphorettecl animal substances beha- viour of when undergoing clecomposi- tion 734. - hydrogen decomposition of by - direct suhtitution of alcohol- raclicals for hydngen 111 407. - preparation of pure 300. - substance in pus 744. Phosphoric acid estimrttivn of 441 58.1 58 4. - new method for the separa- tion aiid utilisation of in iron ores 1219. - 1wec;pitatioii of small quanti- ties oS by ainluoiiiuni inoljbtlate 157. - retention of by soils 203. - titration of by uraiiiuin solu- ticn 733. - bromide reaction of with sodium hroinosulpliobenzoate 370. P~iospliorous acid esaiiiiiiatioii for 5’59. 1267 ;UB JEC T S. Nio~pliorons chloride action of on anhy- d d e s mll cliloridcs 491.Phosphorus action of arumoiiia on 1153. - bronze SGO. - ba.o. 568. - dissolved in carbon disulphide action of on a solution of blue vitriol 953. - estimation of in pig iron steel and malleable iron 159. - csanmiatioti for ’759. - new osycliloride of 1160. - pentacliloride action of on chloral- ethyl-alcoholate 696. - action of on dichloidde~yde 1190. -~ action of on opthobronioben- zoic acid 1055. - poisoning tissue-cliaiigc in 946. - qiiantivalcnce of 552. - rcciprocd transformation of tlie two allotropic states of 1157. - retl absorbent power of 1005. - series betaine of the 10G6. - sulpliobroinide 1163. - trichloride decomposition of by water 660. Phosplioryl trichloride and broino&chlo- ride soliclificatio~i of 1162.Phosphostannic acid crystallised from - copj iiig of dran ings by 86’7. - use of ulbuiuin and taiinin in 1151. Pliotolitliograpliic process new 1099. Phthalein of hydroquinone 911. - of resorcin Y U . Phthalic acid electrolysis of 917. - chloride reaction of with naphthol 10 Bd. Picoline occurrence of amongst the pro- ducts of the dry- distillation of acrolem- arriiiionia 539. - osidatioii-products of 144. - in tobacco-smoke 1077. Picrate of potassium explosive force of 648. Picric acid thermal effects of the con- binat,ion of with bases 979. Pigments blliwy and urinary 419. Piperidine derivatives of; 1063. Pipwine and its cleconiposition-procluct 4 researches on the comtitution of 9s k.Piperonal action of nascent hydrogen on 934. - phosphoric chloride on 938. Piperonyl alcohol 936. Pipcronylic acid action of barium liy- (Irate dilate hydrochloric ctcicl and water on 937. INDEX OF SUBJECTS. 1268 Piperonylic acid action of nascent hy- drogen on 936. - action of phosphoric chloride - synthesis of 1050. 2'76. on 939. Plant-food loss of in soils by drainage - its state of combination in the - -juices new diffusion apparatus for extracting 1100. Plants action of electricity on the - chemical substitution in 428. coloured tissues of '796. soil 277 296. - distribution of potash and soda in Platinic chloride action of sulphurous 851. acid on 891. Platinocyanides of beryllium 1013. Platinocj auide potassic reaction of with thallious carbonate 461.Platinum-compounds new class of 1009. - and lead alloy of 202 1166. - spongy effect of in facilitating the Propargylic ether 527. decompodtion of potassium clorate 1154. Plunibocalcite from Carinthia 204. Plumbic hi-omocoumarilate 49. - coumarilate 48. Plumbostib from Nertschinsk composi- tion of 671. Polariscope 441. Polarization (electric) of metallic surfaces in aqueous solutions a new method of obtaining electricity fi-om mechanical force 101. Porpoise flesh-juice of 426. Potable water development of fungi in 66. ' - waters origin of nitrates in 62. Potash retention of by the soil 293. - -salts use of as manure 279. - separation of from magnesia 955. - and soda distribution of in plants 851.- supposed incompatibility of to form ultramarine 451. Potassium-allantoi'n 1200. - bisulphite spontaneous deconiposi- - amalgam 890. tion of 1167. - bromocoumarilate 49. - chlorate. See Chlorate potassic. - coumarilate 47. - cjanate isomeric 391. - decomposition of minerals by - hydrate action of molten on sulph- 1200. - iodide reaction of with cupric sul- oqbenzoic acid 1052. - iodochromate 801. p$ate 581. Potassium-palladium sulphopalladate - salts compounds of with cane- 317. sugar 270. -and sodium salts sterility caused by excess of in soils 280. - solubility of in liquid ammonia of 1082. 310. - sulpho coum arilate 51. - sulphocganate isomeric 391. Plirenitic acid 372.Prehnomalic acid 372. Pressure effects of on the absorption of gases by charcoal 76. - and volume changes of produced by chemical combination 975. Prickly comfrey (Xymphytzcm asperri- nazcm) composition and nutritive value Productiveness of land conditions of 278. Productire powers of soils in relation to loss of plant-food by drainage 276. Propionamide 234. Yropionanilide 234. Propionic acid derivatives of 234. - aldehyde preparation of 1030. Propionyl chloride conversion of in to normal propyl alcohol 229. Propyl alcohol normal conrcrsion of propionyl chloride into 229. - normal synthesis of from ethj lie alcohol 1030. - bromide 523. - chloride 808. - propionate qreparation of by oxi- dation of propyhc alcohol 903.Propjlene chloriodide structure of 1027. - compound 808. Propylic ethers normal 1032. Propgl-methyl ketone 385. Proteids action of water on '731. - decomposition of by bromine and water 1069. - metamorphosis of in the bodies of ruminants '728. - occurrence of aspartic and gluta- mic acids among the decomposition- products of 721. - relation of to the carbohydrates - vegetable leucine obtained from '719. 1069. Protocatechuic acid constitution of 827 829. formation of from piperonjlic acid 937. - preparation of from oxyben- -___ zoic acid 829. - aldehyde new method of preparing 1050. INDEX OF SUBJECTS. Protopine 1065. Prusaiates. See Ferro- and Ferri-cya- nides. Pseudomorphs two new 672.Puddling furnaces working of ordinary compared with that of the Siemens’ regenerative furnace 446. Punamu. See Nephrite. Pus chemical composition of 744. - corpuscles chemical composition - and serum origin and ulti- 841. Pyrene 11’7 690. of 742. mate fate of 745. Putrefactive processes and disinfection - -quinone 691. Pyridine constitution of 145. - in tobacco smoke 1077. Pyrites capillary 1176. - magnetic 326. Pyrocatechin green liquid obtained by heating with phthalic and sulphuric acids 912. - formation of from cellulose and Rock-salt formation of 310. - Cornish 110. - production of from carbohydrates Rosaniline constitution of 835. other carbohydrates 226. 849. Pyroelectric properties of topaz 669. Pyrogdlic acid oxidation of by electro- lysis 918.Pyromellitic acid reaction of with naph- Pyroretinite distinction of from ros- thol 1042. thornite 1175. on 931. Quintanes 1026. Q* Quartenylic acid 814. Quartz-bricks manufacture of 1099. - -porphyry analysis of 1171. Quinine alkaloyds action of hydracids of on oxidation in the - bases periodides of 398. -influence blood 1202. R. Ralstonite 1019. Red colour printing with artificial aliza- - prussiate of potash. See Ferricy- rin 603. - fire 970. anides. Reinsch‘s process distinction of deposit obtained in from salts of mercury 161. 653. 1269 Refraction and dispersion of light in silver iodide chloride and bromide Report of the President and Council of the Chemical Society (&larch 30 18?l) Resin fossil perhapy related to the 609.amber-producing Flora 892. - rosthornite a new fossil 1174. Resistance electric. See Electric resist- ance. - measurement of the internal of volt& batteries by the compensation method 649. Resorcin azo-compounds of 830. - colours 911. - derivatives of 22’7. Rhubarb detection of turmeric in pow- dered 761. Rock from Botallak Cornwall 111. Rocks analytical researches on with reference to their constituents absorb- able by plants 429. Root-crops field experiments on 1083. Rose-naphthalene or Magdala-red dyeing of silk with 1223. Roeeo-cobaltic iodosulphate derivatives 1193. of 1169. Rosthornite a new fossil resin 1174. Rubidine in tobacco-smoke 1077.Rue-oil synthesis of 387. Rufiococcin 913. Ruminants metamorphosis of albuminous substances in the bodies of 728. Rye-grain proportion of fat and wax in Rye-straw proportion of fat and wax in 1193. S. Saccharate of sodium chloride 5’72. Sal-ammoniac from Vesuvius 1016. Salicin constitution of 960. Salicylic acid heat produced by the com- bination of with bases 980. Saline solutions densities of 98’7. Saliretin 540. Salt-plants 1209. Salts action of normal and acid on ammonium salts 785. - influence of on the crystallisation of sugar 456 457. - transport of by the electric dis- charge 882. Sandbergerite 32’7. Sandstone variegated of the eaztern rim of the Thuringian basin 209. ISDES OF SUBJECTS.12 70 Saponite 326. Sarcolactic acid 546. - in urine 423. Saussurite 324. Secondary estract formation influence of - nionaniines. See Monamines. in fermenting maalies. 1223. Seeds apparatus for tlie extraction of - germination of 748. oil from 868. - oleaginous germination of 1207. - rarious percentage of fat in 1193. Selenium new facts about 660. - spectriim of 1145 1146. - sulphiclc 995. Selenoraleraldeli~cle 560. Senna Alesandriaii purgative l>riiiciplcs of 1068. Sericic acid 380. Serpentine convcrsion of into tadjerite 505. - from Tom 5 . - from the Lizard 113. Serpeiitiiious rock ilIllciiheniot Cornvall 112. Serum albumin decomposition of by licating with r a t e r ‘733. - of pus origin and ultimate fate of 745.Sesquicarbonyl chloroplatiiiite 1012. Sewage-niannre probable effects of when appliect by irrigation 297. Sliccp assimilation of meadow-hay clorer- ha^ and niangolds b ~ 10’74. - clianoe of material in the aclult under uniform feecling 7%). Siemens’s regeneratix-e fwmace coin- parison betmen the TI-orkitig of aiid that of tlic ordinary piiclclling iunince 416. Silica infworial usc of ‘76-l.. Silicates alkaline use of gaize for the preparation of ’7G3. - determiiiation of alkalis in 4 12. - occuiwnce of baqta in 674. Silicic acid aniorplio~i~ 3s mordant for - ether clilorhr~lriii of 918. colouring matters 152. - ethers recluctioii-prodricta of 103’7. Silicium-dietli;rl~lil~~i~~~tliiii 1038. - -diethylhetoiie 1( )38.- -dietliylkctoiiics ether 1038. Silicoheptyl ether 1039. Silico-niolybclic acid pellom precipitate containing 159. Silicon alqxireiit T-olatilisation of 99’7. - chlorides of 9LU. - condition of in iron and steel. 107. - dry poces9 for the estiiiiatioii of in caat-iron wrought-iyoii and steel 1212. - oxychloricles of 1000. ~ Silicon sprctrnm of 1147. subcliloriclcs of 998. - 3uhfluoricle of 999. Silico1)ropionic a cid 918. __ ctlier 1038. Siliceous calamine from Scharley in Upper Silcsia 1178. Sill silwring and gilding of 450. - Wcstphal’s process for dyeing black and loading of 971. Silkx orin disease 435. Silver nctioii of moist ultrainarine on 9‘70. - atomicity of 529. - brittle 499 - chloride rccluction of i n the wet wa) 498.and iodide rednction of by 115 drogcll 1009. - nncl gold improved process of ex- -__ -__ tracting from arseniosulpliicles of lead Copp?r &c. 447. Rivo t’s process for extract- ing from tlieir ores 1219. - Iialo~cl salts changes in produced b j liglit 481. - iodide bromide and chloride re- fraction and dispersion of light in G33. - decomposition of 313. - lacquer French 868 969. - new method of refining 448. - nitrate recovery of from the silver bath 500. - nitrite action of heat on 85. - ores Kriinclie’s method of aiiial- ganiat ing 447. __ ortlioTniiailate 35. - o d e am1 nitrate alkaline reaction of 1(19. - residues melting of 9’72. - sensitiveness of haloid salts of to liglit 306.- sulphites 1169. - treaeurc-troi e cheinical changes iiiidergone by some fouiiU a t liildcs- liciiii GG6. - I aiiadxtes 35. Sill el-iiig of gelatin relief-forms for gal- nmopla4c work 767. - of glass 859. - of S l l k 450. Sinnpi1.i lie 408. Slate Cornish 111. SnaLe? cheiiiical relations of the nnclei Soap > ellow colouring of bJ caclinium of bloocl-corpuscles in 740. sulpliicle 868. determination of fat ancl alliali in 9j9. Soda a i d potash clistribation of in plants 831. ISDES OF SUBJECTS,. Soda separation of from magnesia 955. Sodium acetate compounds of with nater 230. - action of on the two isomeric k o - nobromotoluenes 684. - amalgam 890. - action of on oxalic ether 820 908.- bramocoumarilate 49. - chloride abiiormal crystals of 1178. - aqueous density and expansi- bility of 11.27. - formation of transparcnt cubes of 311. - IiTdrated from Etna 1173. - specific heat density and ex- - coumarilate 4'7. - - Sacellarate of 572. paiision of 90. - decomposition of minerals by 1210. . - line rerersal of 185. - nitrate and calcspar isomorphism of 197. - orthoranadate 29. - phorphate containing different quantities of water of crj stallisation amount of heat evolved or absorbed in the solution of 1131. - pyroranadate 31. - salts compounds of with cane- sugar 270. - solubility of in liquid aninionia - specific heat density and cx- 309. pansion of aqueous 95 1126. - sulplio"o"ii'arilate 50.- sulphopalladate 313. - uses of 868. - Taiiaclates 29. Soil analyses r e d ralue of 276. - iiiflumce of marl on the formation of carbonic acid and nitric acid in 751. - nitrous acid in 852. - reclaimed from the Haarlein Lake in Holland composition of 280. Soils absorption of gases by 833. - productive powers of in relation to loss of plant-food by drainage 276. - retention of potash arid pliosplioric ahid by 293. Solutions aqueous heat evolred in for- mation of 473. - density and expansibility of some 1125. - saline densities of 957. - saliiie specific heat of 468. - in sulpliicle of carbon specific heat of 96. Sorbite 1043. 1271 specific gravities lecture apparatus for 482. - heat.See Heat. - of aqueous solutions 798. - of liquids 94. of saline solutions 468. 3pectra of bodies belonging to the nitro- gen and clilorins groups 1144. - of carbon boron silicon titanium and zireoiiiuin 1147. - of iiicandeseent gases 483. - of metallic vapours rerersal of the lines in 1142. -___ - of simple gases 991. - of sulphur selenium and tellu- rium 1145 1146. - of tin and its compounds 1147. - of Uranus and spectrum of comet I. 1871 note on 885. Spectroscope use of for tlie qnmititative estimation of colouring matters 602. Spcctroscopic cliaracters of the ammo- niacal solutions of carmine coclfiiieal and other substances 1096. - observation of the sun 798. - phenomena produced by dispersion '798.Spectrum aiialysis appiicd to the quanti- tative estimatiofi of colouring matters 759. - use of a reflector in 857. - of calcium 1149. Sphalerite occurrence of thallium in 312. Spiegeleisen estimation of manganese in 756. Staiinic acid from borax 804. Stearic acid recorery of from oieic %id 972. Stannic cliloride spectrum of 1148. - ~heiiyl-trietliide 225. - sulpliide hTdratecl 957. - triethide reactions of 223. Starch 5-13. -action of dilute sulpliuric acid in Starch animal 838. - -syrup and starch-sugar manufac- ture of 458. Steel allrged action of cold in rendering brit tlz 444. - cast combination of tlie Besse- 226. - burnt 791. iner and Martin psocesses for the mauu€acture of 6ij-l.. - condition of carbon and silicon in 106.- dry process for the estimation of silicon iu 1218 Stereochromic pictures painting-ground for 122s. Straw application of to paper-making 768 INDEX OF SUBJECTS. ‘‘ Sucrate of hydrocarbonate of lime,” Sulphonateotide 56. responding diatomic alcohol 810. solution of 1127. - determination of in urine 1095. - influence of certain salts on the Sulpho-ureas so-called decomposition of by nitrous acid 267. Sulphovaleraldehyde 560. Sulphoxyazotinate of potassium 308. Sulphoxybenzoic acid action of molten 140. - of pofassinm isomeric 391. Sulphodibromobenzene 1055. Sulphoform 901. Sulphomaleic acid 131. Sulpho mor phide 5 6. Sdplionitrodibromobenzene 1055. Sulphopnlladates 313. Sulphopseudouric acid 1058.Sulphosalicylic acids isomeric 1052. Sulpho-salts on some new 313. Sulphotoluene from bromosulphotoluene of 91. 1272 Street-gutters disinfection of 971. Striped muscular fibre condition of the cioubly refractive substance of ’735. Strontium cohalticyanidcs 390. - sulphocoumarilate 52. Strychnine bases periodidcs of 398. - and morphine determination of in presence of one another 443. - oxethyl compounds 148. Styphiiic acid 227. Subchlorides of silicon 998. Subfluoride of silicon 999. Submaxillary glands mucin of 949. Substitutiori chemical in plants 428. Subsulphide of palladium 315. Succinic acid conversion of into the cor- applied to the purification of cane- juice 170. Sugar examination of after treatment with sulphurous acid 762.- density and expansibility of aqueous cryetallising power of cane- 457. - raw centrifugalising of 458. - -beets and beetyoot distillation 433. - -solutions use of animal charcoal of 96. for the decoloration of in polarimetric analysis 763. - specific heat density and expansion Sugars containing glucose examination Sulphaldehyde and aldehyde compound Sulphanilic acid 377 825. of 383. Sulphate of sodium aqueous density and expansibility of 1126. Sulphates of the alkalis thermic re- searches on the electrolysis of the 985. - basic cupric formation of 1. Sulphazotinate of potassium 308. Sulphazotised acid& 30’7 659. Sulphethers of ethylene 1189. Sulphide of hydrogen estimation of in presence of carbon dioxide 582.- of mercury amorphous occurrence of in the mineral kingdom 671. - of selenium 995. Snlphides capability of certain t o form the negative pole of a galvanic circuit 652. - insoluble action of iodine on 887. - metallic electric conductivity of - action of on organic chlorides - action of on opianic acid 378. 302. - electromotive power of metallic -__ action of on the natural alka- cene 15. - -ureas 5’70. loicls 56. containing oxygen 125. - aqueous density and expan- sibility of 1125. 652. - of palladium 313. Sulphites of copper and silver 1169. Sulpho-acids formation of 173. - of the mesitylenes 376. - of orthobromotoluene 129. Sulphobenzoic acid 131. Sulphobromide of carbon 781.- of phosphorus 1163. Sulphocarbonyl chloride 344. Sulpliochloride of carbon 344. Sulphocoumarilic acid 49. Sulphocyanate of acrinyl 408. - phenylic action of acetic acid on 120. potassium hydrate on 1062. Sulphur absorption of by gold and its effects in retarding amalgamation 765. - -black fast 1223. - chloride action of on aniline in - chloride reaction of with phos- presence of carbon bisulphide 264. phorous chloride 491. - estimation of by barium 1085. - in coal and coke 1089. - in cast iron 159. - dichloride on the existence of 1163. - ores roasting of 449. - spectrum of 1145 1146. S ulph ure t t e d diphen ylallophan ic am y 1- ether 394. - ores roasting of 604. Sulphuric acid action of concentrated on hzeinatin 736.- action of on dibromanthra- cene 19. - action of on dichloranthra- IX‘DEX OF SUBJECTS. Sulphuric acid compound of with nitric acid 656. - concentration of 868. - estimation of in waters 439. - molecular heat of hydrates of 195. - new volumetric method for - organic derivatives of 552. determining 436. - recovery of nitrous acid in the - reduction of by zinc amalgam manufacture of 1100. 487. - specific heat density and ex- pansion of 94. - toxicology of 1078. - anhydride compounds of 193. - and sulphurous anhydrides reac- tion of with phosphorous chloride 491. Snlphurous acid action of on certain metals 656. - action of on platinic chloride 891. - Bailey’s new process of bleaching n ith 452. examination for 759.- Sulphuryl chlorides 489. - -hjdroxyl chloride 490. Sulphgdrate of potassium action of on benzojl chloride 900. Sun new mcthod of spectroscopic kob- servation of 798. Superphosphates estimation of phos- phoric acid 584. Supersaturated solutions new method of preparing 619. Sweet volatile principle found in the caoutchouc of Borneo 915. Symphytuna aspewimwn composition and nutritire value of 1082. Synanthrose 348. Syntheses by means of nascent formic acid 897. Synthesis mcthods of 155 156. VOL. XXIV. T. Tadjerite black colouring matter of 329. - conversion of serpentine into 505. l’annic acid nature and constitution of 5 50. Tannin clean surface of and its use in photography 1051. - estimation of in catechu &c.’i%Z. - estimation of in oak-bark 594. - use of for the prescrration of wine 1099. Tantalic compounds composition of 1013. Tartar composition of crude 867. 1273 Tartaric acid heat produced by the com- bination of with bases 981. recovery of from the residues of the (( discharge ” process 172. Tartrates of beryllium 1013. Tartrophthalic acid 374. Tea from the Hinialajas 571. Tellurium spectrum of 1145 1146. - Temperatures ordinary and furnace measurement of by increase of electric resistance in conductors with rise of temperature 478. Terpiii hydrate vapour-density of 70’7. Tetrabutyraldine 401. Tetrabromide of carbon. See Carbon Tetrabromide 773. Tetrachlorethane produced by the ac- tion of phosphorus pentachloride on dicliloralclehj cle 1191.Tetracliloretlijl oxide 514. Tetraclilorocouruarin 45. Tetrachlorocrotonjlene formation of from crotoiiic chloral 234. Tetracrylic arid 815. Tetrachloro-diaeetone-cyanhydrin 922. Tetrah~drophthalic acid 3’73. Tetranitro-acridine 711. - dphenyl 509. Tetraphenj l-ethglene 119. Tetrasodium vanadate 31. Tetrazo-resorcin nitrate 831. - -resorufin nitrate 831. Tctrethj-larsoniuin tii-iodide 929. Tetreth~lphosl~lionium tri-iodide 929. Tetrethylstibonium tri-iodide 930. Tetrolic acid 815. Thallium new double salt of 461. - occurreiice of in sphalerite 312. Thermal effects of the combination of alcohols with bases 975. Thermic researches on Toltaic energy 1134 1136.Thermochemical researches on the am- inoniacal salts 1128. - in the cpnogen series 982. - 011 the electrolysis of the alka- line bases and of the sulphates of the alkalis 985. - determinations inaccuracy of F a v r e and Silbermann’s made with the mercury calorimeter 876. - -electric action of liquids and metals ~~ 476. - battery of great power 989. forces measurement of 101. Thermometers comparison of mercurial and air 483. Thermo-regulator automatic 639. Tliickeniiig material< action of potassic chromate on 1223. Thigli-bone analysis of a subfossilised 421. 4 Q ISDES OF SUBJECTS. 1274 Thio-acctanilide 567. Thioaniline 566. Thio!iy~lrobvoinobenzoic acid 371. T h i o n ~ l clilori ic reaction of with phou- pliorous chloriclc.191. TliioauIpliocarLnnilide 567'. l'liiotoluidine 567. lliree-carbon serics action of elllorhe on r i various bodies of the 1190. Tliyinoc,rmene 353. Tliyiiiol action of liquid phosgenc on 338. __ derimtires of 330. Tlirinoqiiinone 351. Ti; action of chlorine on heated 956. __ aiid its conipou~ds spectra of 11 17. _I - ancl h~clrocltloric acid action of 011 limn at in '7 3G. ob-ervations made during the snsly- sis of commercial 956. Tissne-change in phosphorus poisoning 9 16. I_ Titanic acid crj stnllisntion of 200. Titaiiiuin spectruni of 11 17. Tobacco pliysiologicnl action of wlien u>ed as a iiarcotic 1075. snioke constitwiits of 1075. Tolane coiiipouiids 510. Tolneiie-cleriratires determiiiatioii of the clitniicol positions in some 680.__ -sulpliuric :tcicls ositlatioii of 1052. Tolnicline (nitro-oitlio-) 563. __ (ineta-) derirsti\Tes of 563. T o l q lene-dianiines . Sze TolIlene- dia- min(~s. To131 c p n a t e 139. Tolvlriic.-dinmines isomeric 5fi5 683. ~oyJ-1 plienyl-ammonium cobalt icj mide 390. - -urethane 139. T o p z . p)-i*oelrcat ric properties of 669. Toxicology of tlie bmztwe-group of ni- troglycerin nitric acid and sulpliuric acid 1W3. -__ Tribasic act tic ethcr 515. Tribromotolume 1( 'GB. Tribroiiiortl~ot oluitliiie 1062. Tribntylamine 122 523. Tri-iotlicles of tlle n1Lalo (14 399. Trichlor:wetates met dlic 1043. Trichloracetic aci(1 232. preparation of 812.Tricliloretliyl oxid(> 51-1. Trichlorliydrin action of chlorine on the isomerides of 1190. Trichloride of pliosphorus clecomposi- tion of by vat er 660. __ of p110-11lioi~~-l solidification of Tric.lilorobriizclic :icid forumtion of from 1162. clirjsaiii>ic acid 555. ~~icliloroerotoiiarnide 233. Criclrlorocrotonic acid 233 558. I'richloyocrot onic aldehyde 557. ~richlorocrotony1 chloride 233. rriethidc stannic 223. Criotlryl-carbinol 1035. rrietll; lpliospliine action of 1iydrochIo- ric :md lirclrobroniic acids on oxide of 635. - preparation and properties of the oxide of 629. rrietli yl-silicic acid chloride of 918. rrietliSla~ilpliiiie periodide of 930. rriglycollamic acid 361. constitution of 236. I'rigond pyramids law of in circular __- polarising substances 1180.l'rinirthyl-carbiiiol 1035. l'rinitro-orcinic acid 358. __ -resorcinic acid 358. I'rinkerite 1179. I'ripli"iv1-biuret 395. Triplicii~l- guaiiidine action of cyanogen ~ on 113. Tri\ulphide of ethyl 905. Tri~ulpliosyazate of potassium 308 660. Tritliionic acid new mode of formation of 658. Tumwyic colonrino. matter of 152. detection of ?n powdered rhubarb and ~ ~ l l o w mustard 761. Trwneri t e 324. Tut (I plant (Com'aria ruscfolia) poison- ous priiiciple of 152. Tyrosine compounds of with mercury U. 406. -reaction - obtained by heating casein with glacial aretie acid 733. Hofmann's 406. Ullinannite 1179. L7tramarine action of moist on silrer 970.__ constitution of 166. __ notcs on 970. - supposed incapability of potash to forin 451. Unibelliferone 832. Uranic oxide basicity of 199. Uranium residues method of working up 586. - solution titration of phosphoric acid by 7'53. Urea action of nitrous acid on in aqueous solution 265. - beiizrlic. 928. - e s t i i k i o n of by sodium hypobro- mite 162. INDEX OF SUBJECTS. Urea nitrate action of on benzylic alco- hol 928. - a normal constituent of bile 423. - production of by the decomposi- tion of aqueous hydrocyanic acid V Valeraldehyde 539 706. - -ammonia 70’7. Valeraldbe 706. Valerate ainylic preparation of by oxi- dation of amyl alcohol 902. Valerntes normal 10-$5. Valerie acid normal 1043.- acids on the different 126. Vanadates of lead 500. 1067. Ureas (sulphur-) 570. Uric acid group researches on the 1058. Urinary calculi 848. - pigments 419. Urine determination of sugar and detec- tion of albumin in 1095. - of the heron guanine in 848. - in leukhemia 421. - preparation of creatine hydrochlo- ride from 912. - sarcolactic acid in 423. Ursus spelceus proportion of ordinary to soluble ossein in a bone of 734. - metallic 28. - order of stability of 36. Vanadinite 502. - artificial 34. Tanadium action of iodine on 28. - determination of in soluble vana- dates 28. - metailic 23. - oxydibromide 26. - oxytribromide 24. - researclieson Part 111 by H. E. Roscoe 23. - tribromide 26. Vanadyl dibromide 26.- tribromide 24. Vapours metallic reversal of the lines in the spectra of 1142. Variscite 1015. Vegetable parchment preparation of 861. - protcids leucine obtained from 719. - occurrence of aspartic and glutamic acids among the decomposi- tion-products of 721. - substances incineration of 855. Vegetables herbaceous metamorphoses and migrations of the proximate prin- ciples in 57’7. Vermillion manufacture of 170. 1136. 1275 Vinyl-piperidine 1063. Viridine in tobacco smoke 10’77. Vivianite 6. Voltaic action observations on clean and unclean surfaces in 990. - batteries measurement of the inter- nal resistance of by the compensation method 649. - battery action of the secondary currents of on the primary currents and on one another 884.- influence exerted in the by the size of the plates 881. - energy thermic researches on 1134 Volume changes of produced in chemical combination 975. Vohimetric analysis sources of error in - estimation of sulphuric acid baryta 156. chlorine bromine and iodine 436. W. Water action of on antimonious clilo- - action of on iron 103. ride 662. - action of on proteids ’731. - and certain alcohols insoluble in water simultaneous distillation of 582. 1029. - analysis with the “ hydotimeter,” - analysis sulphuric acid estimation -from the coal measures of West- ville Pu’ova Scotia 176. - of crystallisation in salts estimation in 439. of by Hofmann’s vapour-density method ’707.- of drainage See Drainage. - for feeding boilers analysis of 762. - freezing of 795. - of 11s clration opt,ical evidence of the nature of 183. - of the Irish Sea 506. - of irrigation canals nitrous acid in - 950. of the Rhine near Koln 213. - -culture experiments with maize 1081. -glass neutral use of for wool washing 860. - - reactions of 492. - relation between decomposition and electrostatic induction of 101. Watering streets with saline solutions Water-plants influence of light and heat 968. on the evolution of oxygen by 1080. INDEX OF SUBJECTS. 1276 the Euganian Hills Padua 1021. Waterproofing of linen and cotton 767. Waters analyses of from the Mudlump - clearing of muddy 868. Springs of the Mississippi Passes 676.- exiitence of copper in certain 1096. - mineral from the cold springs of - from Forge-les-Eaux crenic Xanthamide,. phenylic 26’7. - and apocrenic of Keugaroczi acid in 921. near Ealle 850. 212. matter and nitric acid in 754. - 66. origin of nitrates in 62. Watery fluid transpiration of by leaves Websterite occurrence of near Brighton Weight decrease and increase of pro- duced by successive oxidation and reduction 188. - potable estimation of organic Xyloiclin lieat evolved in the formation Xylene 509. - of potable development of fungi in Xylyl 873. cyanate 139. in 667. Xylyl-urethane 139. in 746. 408. 1211. of 359. 1179. Well remarkable a t Delft 328. - -water estimation of phosphoric Yttrium separation of from lanthanum acid in 582.and didymium 495. Wheat-bran products of the acid fer- mentation of 545. White lead analysis of 762. White mustard seed new constituent of Wine estimation of cream of tartar in Zinc chloride action of on morphine - Hungarian fatty acids in fpsel-oil - chloride action of on papaverine - use of tannin for the preservation - and copper alloy of Cu3Zn 1167. - estimation of in galvanised iron Wines apparatus of Giret and Vinas t of 1099. for heating with 8 view to their pre- servation 1100. Winkworthite 320. Wood distillation of 1101. - -pulp detection of in papep 969. Wounds Bottger’s disinfecting dressing Wool dyeing amaranth-colour with - new brilliant green for 861. fuchsine 9’71. - -waslling and dyeing 1223. - crystallised use of neutral water-glass for Zirconia Zirconium oxychloride from of borax 1000. 804. 568. - spectrum of 1147. 159. - h a t of combustion of 643 793. - new method of estimating 1214. - separation of horn nickel 955. - volumetric estimation of 755. - volumetric wtimation of by sodium sulphide 1215. - -ethyl action of phosphine on - -white analysis of 762. Zircon in hypersthenite 205. for 769. 860. BARRISON AND 80NS PRINTERS IN ORDINARY TO HER MAJESTY Sl! YARTIN’B LANE. Wrought-iron dry process for the esti- mation of sdicon in 1212. Wulfenite 501. x. Xanthophyllite occurrence of diamonds Y. Yeast estimation of the mineral consti- tueiita of 855. Yeast-plant nutrition of 426. Yolk of the hen’s egg nuclear structures Z. 264. 265.

ISSN:0368-1769    

DOI:10.1039/JS8712401244

出版商:RSC    

年代:1871

数据来源: RSC