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Proceedings of the Chemical Society, Vol. 21, No. 295 |
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Proceedings of the Chemical Society, London,
Volume 21,
Issue 295,
1905,
Page 149-162
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PROCEEDINGS OF THE CHEMICAL SOCIETY. VOl. 21. No.295. Thursday, May 4th, 1905. Professor R. MELDOLA,F.R.S., President, in the Chair. Mr. J.W.Wilkinson was formally admitted a Fellow of the Society. A certificate was read for the first time in favour of Mr. Eric William Campbell, 97, Eatoii Square, S.W. A Ballot for the election of Fellows was held, and the following were subsequently declared duly elected : Arthur Amos, B.A. Leonard Gibbs Killby, E.A. Albert Edward Andrews. William Henry Leek, B.A. John George Baxter. Ernest Isaac Lewis, B.A., B. Sc. Francis George Belton. Peter Mapuire. Edward Shipley Hewett Edwards Ernest Robert Marle, E. Sc. Bre t tell-Vaughan. Francis Grimshaw Martin. Thomas Walter Firth Clark. Reginald Bruce Maughun. William Morris Colles, jun., B.Sc.Edwin Morris. Miles Coup Alfred Mortitner, I3.A. Roger Dodds. Alfons O'Farrelly, &LA. Sydney Dunstan. William Sarginson, B.Sc. Bernard Scott Evans, B.Sc. Frank Shedden, B. Sc. John Greig Ferrier. Charles Stuart Shepherd. FrankStandish Findon, M.A ,B.Sc. William Ewart Speight. Horace Finneniore. Arthur Gordon Spencer, B.Sc. Albert Gillies. Syduey Dockeray Stenni tt, b1.S Archibald Melville Glass, R. Sc. Edmund Henry Stevens. Henry Isaac Gorman. Harold Blytlien Stevens. Ernest Green. Robert Reed Swami, B.Ec. John Griffiths, B.Sc. John William Taylor. Samuel Ernest Groves. George Devenish Thonm, B. Sc. John Hatvthorne. Arthur Walsh Titherley, D.Yc., Arthur LonsdaleHetherington, B.A. Ph.D. James Henry Howgak, B.A.Francis Henry Wall. Sydney A. Kay, D.Sc. 150 Of the following papers, those marked * were read : "76. ''Notes on sodium alum." By John Mello Wadmore. The following experiment was made with the object of gaining infor- mation with regard to sodium alum, the existence of which was affirmed by Zellner, in 1816, and subsequently by Augb (Cornpi!.rend., 1890,110, 1139), but denied by Ostwald (PkzcipTes of Inorganic Cherni&y, English edition, 1902, p. 556). By mixing, in solution, quantities of sodium and aluminium sul- phates in the proportion of their respective formula weights, a sub- stance was obtained, crystallising in octahedra and having the appear- ance of an alum; moreover, the analytical data agreed closely with the numbers calculated for sodium alum, Na2S0,,A12(S0,),,24H20.The solubility of the compound was determined at various tempera- tures and found to be considerable. Thus, 1 gram of water at 10.6" dissolves 1.0711 grams of the crystalline salt. Attention is drawn to the fact that a hot concentrated solution, on cooling, deposits a pasty or oily substance which is slowly transformed into crystalline sodium alum. This paste may possibly be a homo-geneous mixture of anhydrous, or partly hydrated, alum and water. Finally, it is shown that, whilst sodium alum does not effloresce ap- preciably under ordinary conditions, it rapidly parts with about half its water of crystallisation at 50°, but a higher temperature is needed to dehydrate it completely. DISCUSSION.Dr. MORGANsaid that the author's results seemed to agree very closely with those already set forth in a recent patent (G. Dumont, D.R.-P. 141670, Abstr., 1903, ii, 547), both observers having noticed the formation of the intermediate amorphous substance followed by that of a crystalline, non-efflorescent alum. Recently, in a preparation of p-benzoquinone, when a fairly concen- trated solution of sodium dichromate was employed, he had noticed the production of large, well-defined crystals of sodium chrome alum, and he asked whether the author had made any experiments on the formation of this double salt. Mr. WADMORE,in reply to a remark by Dr. Harden, said that there were several objections to the view that the paste might consist of anhydrous sodium sulphate, but admitted that the point required further investigation.As to the possible existence of sodium chrome alum, he had already made some experiments in this direction, and hoped shortly to be able to furnish definite information. 151 *77. Camphoryl-+semicarbazide." By Martin Onslow Porster and Hans Ednard Fierz. CH*N(NHCamp~~M.y2-$-semicar~a~~de, C(0H)-NH2)>C0, obtained byC,H1,< 1 reducing camphorylnitroso-$-carbamidewith zinc dust in dilute acetic acid, dissolves readily in water and crystallises from chloroform in minute, white needles melting at 193'; it has [aID8*6', and forms a definite nitrute, cupinitrate, and anhydride. Condensation with certain aldehydes and ketones takes place very readily, and many of the products have high specific rotatory power ; the following cases are typical : +-Seniicarbazone.x.1'. Solvent. m-Nitrobenzaldeliyde 218" Acetic acid +84" 301' Acetone ................ 21i Chloroform -188 498 Camphorquinone ..... 234 9) -314 1172 Benzaldehyde ........... 223 +421 13189)Furfur aldehyde ........ 222 + 502 1522 Cinnamaldehyde ..... 219 Ether +605 2051 Benzoqninone ........ 197 Acetone -1051 3310 The camphoyyl-$-semicarbazones are characterised by the tenacity with which they retain solvent of crystallisation ; this property accounts for the profound influence on specific rotatory power exerted by various media. The cinnamylidene derivative, for example, has the following values in the solvents mentioned : Solvent.Solvent. 1.1~. Ether ................... + 605" Nitromethane ......... +307" Chloroform ............... 527 Acetone.................. 162 Phenetole .............. 451 Alcohol.. ................ 107 Bromobenzene ......... 438 Acetic acid ............ 96 Carbon disulphide.. .... 331 Pyridine ............... -54 Similarly, the benzoquinone derivative has [a],,-106i0 in chloro- form and [.ID -545' in alcohol. DISCUSSION. Mr. W. ROBERTSONpointed out that the influence of the unsaturated linking on the rotation of optically active compounds was apt to be misinterpreted. The increase due to such a linking depends also on the position of the etbylenic bond; for example, Rupe has shown that menthyl caproate and menthyl hydrosorbate have almost identical specific rotatory power, although one is saturated and the other unsaturated.On the other hand, if the linking is close to the asymmetric complex, or to a phenyl group, the change in rotation is very marked. The PRESIDENTasked whetlier the compounds referred to by Dr. Forster as retaining their solvent of crystallisation with such obstinacy could be made to part with this attached solvent by heating, or whether they decomposed under this treatment. He congratulated the authors on having made what promised to be a most valuable addition to the agents available for the resolution of racemic neutral compounds such as aldehydes and ketones. The possible resolution of camphoryl -$ -semicarbazide itself, referred to by Dr.Forster, bad occurred to him also during the reading of the paper, and he suggested that some naturally occurring Unsaturated open chain aldehyde possessed of optical activity, such as citronellal, might be found to answer the authors' requirements. In reply to the President, Dr. FORSTERmentioned that the solvent of crystallisation is usually removed on prolonged exposure to a, tempera-ture approaching 100' without alteration on the part of the substances ; attempts would be made to resolve the pseudo-semicarbazide on the lines suggested. He agreed with Mr. Robertson that the position of the unsaturated linking has influence on the rotation, but the series under consideration does not illustrate this point so clearly as Rupe's.*78. '' Some derivatives of anhgdracetoneb enzil." By Francis Robert Japp and Joseph Knox. The condensation of benzil with unsaturated ketones has nob hitherto been studied. The authors find that benzil interacts with methyl isobutenyl ketone, CH,*CO*CH:C(CH,),, under the influence of potassium hydroxide to yield P-iso~~l.o~ylideizec~~t~~~~l.c~cetonebe C,H,*C== CHI >CO , slender, yellow needles (m. p. 205.5'). C,H,*C(OH)*C=C( CH,), With the corresponding saturated ketone, methyl isobutyl ketone, on the other hand, benzil condenses to form a mixture of a-isopropyl- C,K,.Cr== C -CH(CH,), cuthy &ace toneben6iI, I \co ,six-sided prisms or c,H,.c(oH)-cH,/ slender needles (m.p. 142O), and P-iso233.oz~~Za12~1/drccconebenxil, I , flat needles (m. p. 161.5O). *79. '6 The dihydrocyanides of benzil and phenanthraquinone. Second notice." By Francis Robert Japp and Joseph Knox. The authors find that when benzildihydrocyanide is treated with cold concentrated sulphuric acid, it yields cEipl~en~lccceta?n~~Ze, (C,H,),CH*CO*NH,(m. p. 167*5-16S0). Japp and Miller (Trans., 1887, 51, 33) obtained, by the action of fuming hydrochloric acid on acicular phenanthraquinonedihydrocyanide, two compounds, ~C,,H,ON (m. p. 241') and C15Hl102N(m. p. 183'). The present authors, from a study of the reactions of these compounds, assign to them the following constitutions : Pheiianthmmiil(m. p. 841"). IIyclrosydihydropheiisntilranil (m.p.183"). Both compounds are capable of interacting also in the tautomeric form, and it is at present impossible to say whether the free sub-stances are lactams, as here represented, or the corresponding lactims. *80. ('A condensation product of mandelonitrile." By Prancis Robert Japp and Joseph Hnox. By saturating a solution of mandelonitrile in absolute ether with hydrogen chloride, Minovici (Beg.., 1899, 32,2206) obtained a com-pound, C1,H,,ON,, for which he gives the melting point 200-203°. The authors show that this compound is identical with a substance melting at 196-197' previously obtained by Japp and Miller (Trans., 1887, 51, 29) by the action of hydrogen chloride on a solution of benzil in alcohdic hydrocyanic acid. They confirm the melting point given by Japp and Niller and regard the compound as 3-keto-2 :5-di-N N N (m.p. 194 1957, whilst by heating with hydriodic acid and red 154 phosphorus it is reduced to 2 :5-diphenyl-3 :4-dih?yclro-l :4-dianine, N "81. '( Action of hydrazine on unsaturated y-diketones." By Francis Robert Japp and James Wood. C. Paal and Heinrich Schulze (Ber., 1900, 33, 3796) have shown that the cis-and tnms-forms of s-dibenzoylethylene, C,H,*CO*CH:CH*CO-C,H,,may be readily distinguished from one another by the greater ease with which the cis-form interacts with hydrazine to form a 1 :2-diazine. The present authors have employed this reaction to ascertain the configurations of some analogous unsaturated y-diketones : ap-di-benzoylstyrene, dibenzoylstilbene, and a-benzoyl-0-trimethacetyl-styrene. One result has been to confirm the configurabions assigned to the different modifications of the two former compounds by Japp and Klingemann (Trans., 1800, 57, 667), namely : cis-Form.ti*cvns-Forni. ap-Dibenzoylstyrene .. . .. . . . . m. p. 129' m. p. 197-198O Dibenzoylstilbene ... . . . . . .. . . in. 1'. 220" in.p. 232' The tram-forms do not interact with hydrazine. The only known form of a-benzoyl-P-trimethacetylstyrene(m. p. 115O) has the cis-configuration. 82. ('The synthesis of substances allied to adrenaline." By Henry Drysdale Dakiq. An account has recently appeared of the production of soine coni- pounds allied to adrenaline (D.R.-P.157300 ;Chem.Gentr., 1905, i, 315), which have also been independently prepared by the author (Proc. Physiol. Soc., 1905). Methylaminoacetyl catechol, CGH,(OH),*CO.CHP*NH*CH~,which is obtained by the action of methylamine on chloroacetylcatechol (Stolz, Ber., 1904, 37,4149), is crystalline and melts at 232'; it forms soluble crystalline salts which are perfectly stable. The solution of the salts are very faintly acid and the base is precipitated by sodium acetate. The base forms finely crystalline derivatives with phenyl- hydrazine acetate and with sodium hydrogen snlphite. 155 Natural adrenaline is generally assumed to be a secondary alcohol, whilst the above synthetical base is to be regarded as the correspond- ing ketone. On electrolytic reduction of the ketone or its bisulphite compound, a base is obtained which is probably not identical with racemic adrenaline.This product forms deliquescent crystalline salts (for example, the hydrochloride and oxalate), the solutions of which are practically neutral, The free base is not precipitated from a solution of its salts by sodium acetate. The hydrochloride gives a precipitate with potassium ferrocyanide on boiling and shows the usual colour reactions of catechol derivatives ;it is unstable in hot aqueous solution, and is very readily decomposed by alkali even in the cold with evolution of methylamine. It has some physiological properties which are closely allied to those of adrenaline. On addition of ammonia in slight excess to solutions of the salts, the free base is precipitated as a white, amorphous precipitate which is very sparingly soluble in most neutral solvents.The base may be kept for some little time suspended in water, but it is extremely unstable when dry, passing rapidly into a brown, insoluble substance with much less pronounced basic properties. This change may be analogous to that observed in the case of o-aminoacetophenone. Owing to experi- mental difficulties, satisfactory analytical data and molecular weight determinations have not yet been obtained. The preparation of a base which is probibly identical with the su1)-stance just described is given in the above-mentioned German patent ; this product is obtained by acting on methylaminoacetylcatechol sulphate with aluminium shavings in the presence of mercuric sulphate, and it is assumed to have the following constitution : HO HO/-\*UH(O H) CH;NH*C H,.\-/ If this is ccrrect, the formula for natural adrenaline will require modification, but the author is of opinion that the available evidence is insufficient to determine whether the synthetical base is a secondary alcohol or whether it possesses another of several possible alternative structures.Homologous bases of similar chemical and physiological propertieb have been obtained by the electrolytic reduction of ketonic base.; obtained by the action of various amines on chloroacetylcatechol. 83. ''Methylation of p-aminobenzoic acid by means of methyl sulphate.Preliminary Note." By John Johnston. By means of methyl sulphate, a practically quantitative yield of p-methylaminobenzoic acid may be obtained from p-aminobenzoic acid in presence of water. This compound is identical with that obtained by the action of methyl iodide on p-aminobenzoic acid, and melts at 144-145'. The melting point of the acid prepared by Houben (Ber., 1904, 37,3978) is given as 228-229', and the melting point of the acid prepared by Jaffd (Ber., 1905, 38, 1208) is given as 1Xi-I56'. Methyl p-methylaminobenzoate was prepared and melts at 75-76". p-Dimethylaminobenzoic acid was prepared by the further action of methyl sulphate on the monomethyl derivative; it melts at 235-236' and is identical with the product prepared by Michler (Ber., 1876, 9, 401).The process of methylation cannot be carried further by means of methyl sulphate in aqueous solution, the best method for the prepara- tion of the trimethyl derivative being that described by Michael and Wing (Anzer. C'hem. J.,1887, 7, 195). 84. ''The atomic weight of nitrogen. Preliminary notice." By Robert Whgtlaw @ray. Many workers have pointed out that the atomic weight of nitrogen deduced by means of Avogadro's law from the relative densities of the pure gas and oxygen lies very near to the number 14.000 (Leduc, Aim. Chiw2. Pl~ys.,1898, [vii], 15, 5). When the two gases are compared under conditions in which this law may be considered to be strictly correct, the maximum value ob-tained lies below 14.010 (Guye, Conapt.rend., 1904, 138, 1213 ; Payleigh, Phi2. Tg-am.,1905, A 204, 351). The value 13,990 derived in a similar manner from nitrous oxide is also very close to these (Guye and Pintza, Compt. rend., 1904, 139, 677). The researches of Stas, however, lead to a totally different number, namely, 14.055, and the two sets of experimental results, if accepted, lead to the conclusion that either (1) the law of Avogadro is not true for gases containing nitrogen, or (2) the relative weight of the atoms of nitrogen and oxygen is not a constant. To throw light on this point, a careful study has been made of nitric oxide and the atomic weight of nitrogen has been deduced : (1) from the relative densities and coinpressibilities of nitric oxide and oxygen, 157 (2) from the decomposition of nitric oxide by means of finely divided nickel.In an earlier notice (Proc., 1903, 18,66) the weight of a litre of nitric oxide was stated to be 1.3402 grams under normal conditions (lat. Paris), Since then, a much more elaborate purificution of the condensed gas has been carried out in order to free it absolutely from the last trace of nitrogen, and the mean of 10 new experiments gave 1.3406 grams for the weight of a litre at 0' and 760 mm.(lat. Paris). On correction by means of Berthelot's formula, 30.005 was obtained for the molecular weight of the gas, and hence the value 14.005 for the atomic weight of nitrogen. The accurate analysis of izitric oxide proved a matter of difficulty ; iron wire absorbed only slowly all the oxygen and yielded traces of a gas condensable in liquid air which was probably cyanogen.With copper, the reaction was incomplete. Finally, it was found that the decoaposition by means of finely divided nickel, discovered by Sabatier aad Senderens (Compt. re?zd., 1892, 114, 1429), was an absolute one and capable of being carried out with great accuracy. Before an experiment, the nickel was heated to bright redness in a vacuum to expel hydrogen and traces of moisture. The nitric oxide was decomposed in the same bulb in which it was weighed and the nitrogen was afterwards absorbed in a bulb containing charcoal and cooled in liquid air. In this way, n complete analysis of -the gas was made. The nickel oxide was found to contain traces of nitrogen, which were only expelled after heating to redness in a vacuum for a considerable time.Six experiments were made, and the mean value for the atomic weight of nitrogen was found to be 14.006. This number is possibly R little too low and more aiialyses are in progress. 85. ''The methylation of gallotannic acid." By Otto Rosenheim. The rediscovery of the optical activity oE gallotannic acid rendered untenable the generally accepted formula for digallic acid put forward by Schiff (compare Rosenheim and Schidrowitz, Thms., 1898, 73, 875 and 885, and Proc., 1899,14, 67), as this configuration does not contain an asymmetric carbon atom. It was thought that the study of the methylation products of this substance and their subsequent hydro- lysis might provide a clue as to its constitution.In view of the recent publication of Herzig and Tscherne (Bey., 1905, 38,989), and as the author of the present coinmunication is unable to continue the work, a short statement of the results already obtained seeins justified. It was found that methyl groups could be int'roduced into the gallo- 158 tannic acid molecule with the greatest ease by means of methyl sulphate. In alkaline solution, the reaction takes place in the cold, and a white, amorphous substance is obtained, the yield being about 100 per cent. of the gallotannic acid. The product may be purified by pouring its alcohol or acetone solution into water ; it begins to melt at 95-98’ and is decomposed at a higher temperature, giving off carbon dioxide.It is insoluble in water, easily soluble in acetone, pyridine, or benzene, and resembles the parent substance in being dextrorotatory; a 2 per cent. solution in acetone shows a rotation of 20’ in a 100 mm. tube. The analytical data indicate the formula C,,H,,O,, according to which the substance is a pentamethylgallotannic acid, but owing to the amorphous nature or^ the substance its purity cannot, as yet, be guaranteed, and the numbers obtained are only approximate. The compound obtained by Herzig and Tscherne, by means of diazo- methane, gave numbers agreeing with the formula C2,Hlo07(O*CH,), or C,,H,O,(O*CH,),. From the products of acid hydrolysis, two optically inactive sub-stances are isolated, which are both soluble in ether and may be separ- ated by fractional crystallisation from water.The less soluble sub- stance crystnllises in long needles (m. p. 164’) and was recognised as trimethylgallic acid, whilst the more soluble compound, which was obtained in sinall, acicular crystals (m. p. 187O), was identified with the dimethylgallic acid prepared by Herzig and Pollak (Monatsh.. 1902, 23,:700). Assuming the validity of the old gallotannic acid formula, these re- snlts seem to agree with the following constitution : OMe OMe OMe /*--\. 0.CO./-\.()&I e,\r/ \-*/ CO,H OMe which again! however, does not account for the optical act#ivity of the substance. 86. ‘‘The interaction of hydrogen sulphide and sulphur dioxide.” By William Robert Lang and Charles Macdonald Carson.When hydrogen sulphide is passed into an aqueous solutioii of sul-phur dioxide for several periods of from two to three hours 011 succes-sive days, a milky solution is obtained which is termed Wackenroder’s solution (Wackenroder, ‘‘On Pentathionic Acid,” ArcL PJ~urin.,1846, 48, 272, 140; Berzelius, Juhresbericht, 1847, 27, 36). This has been investigated by Debus (Tra1zs.,i21888,~53, 278), who proved the pre- sence therein of sulphur, and sulphuric, trithionic, tetra thionic, and pentathionic acids, and probably hexathionic acid. The salts of these acids were examined by Hertlein (Zeit.p7igsil%aZ.Chem., 1896, 19,287), who described methods for their separation and their physical pro-perties.The explanation given by Debus for the formation of the polythionic acids is that tetrathionic acid is a direct product of the reaction of hydrogen sulphide on sulphurous acid, and that the other acids are formed from it by various subsequent- reactions. In order to investigate this, the reaction was effected, not in solu-tion, but in the presence of a very little moisture, without which the gases do not interact. A large flask was surrounded with snow, a little moisture blown in, and the two gases then passed in at about equal rates for from two to three hours. A heavy yellow deposit, formed in the body of the flask, but not in the neck, was probably due to condensation of water having taken place only on the colder portions of the glass.This yellow material resembled ordinary sulphur, was dry to the touch, and quite brittle. On treatment with cold water, a milky liquid was obtained and the substance became stringy; this product, when boiled with water, was rendered soft and elastic. Deposits formed by the above methods at different times, on being heated to 100" for an hour, lost from 25-30 per cent. by weight, and on estimating the sulphur compounds contained in them (as sulphuric acid) the amount never exceeded 1 per cent. Weighed quantities of the yellow material were allowed to remain in both open and closed tubes for several days at temperatures below O', but no change was noticeable in any case. When heated at loo", the same loss of weight was observed as before; the presence of hydrogen sulphide could in no case be detected.Since the residue, after heating, contained more than 99 per cent. of free sulphur, it may be concluded that the polythionic acids were present in extremely small amounts. Several quantities of the yellow material were next placed in stoppered bottles at the temperature of the room. After one day, the sulphur had become pliable and elastic and mas covered with an oily liquid having an acid reaction, while a strong odour of sulphur dioxide was perceptible on removing the stoppers. The amount of this liquid seemed to increase after the second day, and this was proved to be the case on estimating the sulphuric acid present in quantities which had stood for one and two days respectively, and which had afterwards been heated at 100'.This liquid was then obtained in larger quan- tities, and was found to have a sp. gr. usually above 1.35, and to correspond with what is commonly called pentathionic acid, and which Debus showed to be a mixture of polythionic acids. Around the neck of the bottles, while below O', colourless crystals had formed : these were in such small amounts that their composition was not determined, 160 although, on warining, they gave off sulphur dioxide and left a deposit of sulphur. It would appear from the above experiments that the action of gaseous hydrogen sulphide on gaseous sulphur dioxide produces first sulphur and water according to the equation, 2H,S +SO, =S, +2H,O, with sulphur dioxide present in the sulphur in considerable quantities.The last two substances slowly interact at comparatively higher tem- peratures, giving rise to polythionic acids. An attempt was made to investigate the action of anhydrous liquid hydrogen sulphide on liquid sulphur dioxide, but the drying of the gases was probably not thorough enough. About 5 C.C. of liquid hydrogen sulphide were collected in a thick-walled glass tube surrounded by a freezing mixture, dry sulphur dioxide passed in until the volume of the mixed liquids measured some 15 c.c., and the tube then sealed at the blowpipe. A slight yellow deposit was formed where the tube was sealed. After one day, a thin yellow film had formed at the upper part of the tube which gradually increased, and when the tube was opened after one meek there was found in the bottom a solid lump of sulphur covered by a clear liquid.This liquid, when allowed to evaporate, gave off sulphur dioxide and left n small quantity of water containing dissolved sulphur dioxide. Methods for the detection and estimation of the different polythionic acids which will, it is hoped, enable the composition of the oily mix- ture of acids to be accurately determined are at present being investigated. di87. The formula of cyanomaclurin.” By Arthur George Perkin. Although cyanomaclurin bears a close relationship to catechin, C,,H,,O,, and analyses of its derivatives were in harmony with the suggestion that it was isomeric with this substance (Proc., 1904, 20, 171), it is now found by exhaustive analysis of the compound itself purXed in various ways that the formula C,,H,,O, is to be preferred.Consequently its derivatives are to be represented as follows : acetyl cyanomaelurin, C,,H70,(C2H,0), ;benzoylcyanomaclurin, C15H706(C7H50)5 ; benzeneazocyanomaclurin, C15HloOG(C6H5N2),,and acetylbenzeneazo-cyanomaclurin, C,,H70,j(C‘,H,N2)2(C2H,0),. ADDITIONS TO THE LIBRARY. 11. By Ptcrclmse. Blyth, Alexander Wynter, and Blyth, Meredith Wynter. Foods : their composition and analysis. With an int roductorg essay on the history of adulteration. 5th edition. pp. xxv + 616. ill. London 1903. (Recd. 19/4/05 .) Castell-Evans, John. Physico-chemical tables.Vol. I. Chemical engineering and physical chemistry. pp. xxxii +548. London 1902. (Recd. 19/4/05.) Collins, Henry F. Tho metallurgy of lead and silver. Part I. Lead. Part 11. Silver. 2 vols. pp. xvi+ 368, xvi + 352. ill. London 1899, 1900. (Recd. 19/4/05.) Davis, George E. A handbook of chemical engineering, illustrated with working examples and numerous drawings from actual installa- tions. 2nd edition. 2 vols. pp. xvi + 531, vii -k 526. ill. London 1904. (Recd. 19/4/05.) Findlay, Alexander. The phase rule and its applications, toget her with an introduction to the study of physical chemistry, by Sir Williani Ramsay. pp. lxiv+ 313. ill. London 1904. (Xecd. 19/4/05.) Foster, Sir Clement Le Keve, and Haldnne, J. S., editom. The investigation of mine air: an acconnt by several authors of the nature, significance, and practical methods of measurement of tlie impurities met with in the air of collieries and metalliferous mines.pp. xii + 191. ill. London 1905. (Recd. 19,'4/05.) Julian, H. Forbes, and Smart, Edgar. Cyaniding gold and silver ores. A practical treatise on the cyanide process. pp. xx +405. ill. London 1904. (Recd. 19/4/05.) Lehfeldt, It. A. Electro-chemistry. Part I. General theory. Including a chapter on the relation of chemical constitution to con-ductivity, by T. s. Moore. pp. ix + 268. ill. London 1904. (Recd. 19/4/05.) Lunge, George. Coal-tar and ammonia. 3rd edition. pp. xvi+ 929. ill. London 1900. (Recd. 19/4/05.) Mellor, J. W. Chemical statics and dynamics, including the theories of chemical change, catalysis, and explosions.pp. xiv + 528. London 1904. (Red 19/4/05.) Redgrave, Gilbert R.,and Spackman, Charles. Calcareous cements : their nature, manufacture, and uses, with some observations upon cement testing. 2nd edition. pp. xviii + 310. ill. London 1905. (Recd. 19/4/05 .) Young, Sydney. Fractional distillation. pp. xii + 284. ill. London 1903 (Reccl. 19/4/05.) HI. Pamphlets. Mingaye, John C. H. Notes OD, and analyses of, the Mount Dyrring, Barraba, and Cowra meteorites. (From the Records Geol. Survey, 1V.S. Wales, ’7, 1904.) &lingaye, John C. H., and White, Harold P. Analyses of leucite basalts, &c., and olivine basnlts from New South Wales. (From the Records Geol.Survey, N.X. Vales, 7,1904.) Shaw, G. W. California olive oil; its manufacture. (Univ. of California, College of Agriculture Bulletin, No. 158.) Sacramento 1904. Twight, E. H., and Ash, Charles S. Contribution to the study of fermentation. (Univ. of California, College of Agriculture Bulletin, No. 159.) Sacramento 1904. Waidner, C. W., and Burgess, G. K. Optical pyrometry. (From the UX.Bureau of Xtnnda?-ds,Bulletin No. 2, 1905.) Woods, C. D., and Mansfield, E. R. Studies of the food of Maine lumbermen. (U.S. Ijept. of Agric. Ofice of Experiment Stations, Bulletin No. 149.) Washington 1904. RESEARCH FUND. A Meeting of the Research Fund Committee will be held in June next. Applications for grants, to be made on forms which can be obtained from the Assistant Secretary, must be received on or before Monday, June 5th; 1905.At the next Meeting, on Wednesday, May 17th, 1905, at 5.30. p.m., the following papers will be communicated : “ The chlorination of methyl derivatives of pyridine. Part I. 2-Metshylpyridine.” By W. J. Sell. ‘I The absorption spectra of uric acid, murexide, and the ureides in relation to colour and to their chemical structure.” By W. N. Hartley. “ Further studies on dihydroxymaleic acid.” By H. J. H. Fenton. ‘‘ The thermal decomposition of formaldehyde and acetaldehyde,” By W. A. Bone and H. L. Smith. ‘‘ The synthesis of formaldehyde.” By D. L. Chapman and A. Holt, jun. “The influence of light on diazo-reactions. Preliminary notice.” By K. J. P. Orton, J. E. Coates, and, in part, F. Burdett. R. CLAP AND SONS, LrD., BREdD ST. HILL, E.C., AND BUKOAY, SVFFOLK.
ISSN:0369-8718
DOI:10.1039/PL9052100149
出版商:RSC
年代:1905
数据来源: RSC
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