1NDEX OF STJBJECTS. TRANSACTIONS. 1900. (hIwked T.); and also t o Proceedings of tlie Session 1899-1900, Nos. 213 to 226, Nov., 1899--June, 1900 (marked P.). A Acacetin from Eobiii irc Pseiitlccccicicc aiiJ its acetj.1 derivative (PEIXIS), T., 430 ; P., 1900, 45. Acetaldoxime, spectruni of (HAI~TLEY and Docem), T., 321; P., 1900, 14. Ac?tanilide, action of dry silver oxide and ethyl iodide 011 (Lasum:), T., $37 ; P., 1900, 6, 90. u - ~ILOILO- a i d 2:4-rZi-bromo- and -cliloro-, formation of ( CHATTAWAY and ORTOS), T., 79s; P., 1900, 112. tii-chloro-, action of bleaching powder 011 a hot acetic acid solution of ( CHLL’TThWAY, ORTUX, and HTRT- LEY), rr., 804. substituted nitrogen chlorides from, and their transformation (CHATT- AWAY, OI~TON, ant1 HURTLET), T., 800 ; P., 1900, 125.( l l - , tri-, and tetra-chloro-derivatives of, from substituted nitrogen chlorides (CHATTAWAY, O ~ r o s , and HURT- LEY), T., 800; P., 1900, 125. Acetanisidide, dinitro- (MELDOLA and ~YECHSLER), T., 1172; l’., 1900, AcAh acid, cyano-, ethyl ester, con- stitution of tlie sodium deriva- tive of (THOILPE), T., 923 ; P., 1900, 113. condensation of the sodium deriv- ative of, with ethyl B-isopropyl- acrylate, and with ethyl a- and P-methylacrylates (HOWLES, TIIOKPE, and UDALL), T., 943 ; P.; 1900, 115. 167. Acetic acid, cyano-, ethyl estw, iotlo- and bromo-derivatives of (THOILIT and YUUSG), T., 9 3 6 ; P., 1900, 115. Acetoacetic acid, ethyl ester, constitution of, and action of dry silver oxide and ethyl iodide, and dry silver oxide and ethyl iocloacetate on (LANDER), T., 738 ; P., 1900, 6, 90.l-Acetonaphthalide, 2 : 4dinitro-, action of tin and of iron on (MELDOLA and Eusos), T., 1159; P., 1900, 166. Acetonedicarboxylic acid, oxidation of, in presence of ferrous salts (FESTOS and JOKES), T., 76 ; P., 1899, 224. trimethyl ester, condensation of, to trimethyl orcinoltricarboxylate (DOOTSON), T. , 1196 ; P., 1900,170. Acetotoluidides, o- and p - , substituted nitrogen chlorides and bromides from (CHATTAWAY and ORTOY), T., 789 ; Acetoxime, spectra of (HARTLEP and DOBBIE), T., 321 ; P., 1900, 14. Acetylaconitic acid, ethyl ester (RUIIE- MASK and STAPLETON), T., 804 ; P., Acetylbenzoyl-i-diphenylethylenedi- amine (JAW and MOIR), T., 612 ; P., 1899, 211. Acetyl-chloro- and -bromo-aminobenz- enes (phenyll acetyl nitrogen chlorides and bromides), and their chloro- and bromo-derivatives, transformation of (CHATTAWAT and OHTOX), T., 798 ; P., 1900, 112.Acetylchloroamino-nzo?zo-, -di-, and -t~i- chlorobenzenes (chlorophelzyl acety2 ni- and HUR‘I’LEY), T., 800 ; P., 1900, 125. P., 1900, 102. 1900, 121. tr’0gCn ChlOTidCS) (CHATTAWAY, OICL‘ON,1344 INDEX OF sur:JEcrs. \ -- BODY, PERKIN, aGd YATEX), P., 1900, 106. C,,H,O,, and C18H3405, from the fusion of dihydroxystearic acid with pot- Acetyl-chloro- and -bromo-aminotolu enes, o- and p - (o- and p-toZyZ acety, ititrogcn chlorides and bro?i~irErs) ani their chloro- and bromo-derivative: .I and alkyl fialoids ( L A N D ~ ~ : ) , T., 729 ; Y., 1900, 6, 90. Aluminium chloride, action of, on cani- phoric anhydride (LEES and PEK- (CHATTAWAY and ORros), T., i90 ; P.: 1900, 102.Acetylchloromorphide (SCIIILTYEH and LEES), T., 1024 ; P., 1900, 143. Acetylenedicarboxylic acid, oxidatioii of, in presence of ferrous salts (FEXTON and JOXES), T., 76 ; P., 1899, 244. Acetylenedicarboxylic acid, ethyl ester, preparation of (RUHEMAHN and condensation of, with &ketonic esters and with benzdmidine and with guaiiidine (RUHEMANN and STAPLETON), T., 804 ; P., 1900, 121. action of phenols on (RUHEMANN and BEDDOW), T., 1119; P., 1900, 165. condensation of, with plieiiyl iner- captan (RUHEMANX and STAPLE- TON), T., 1181 ; P., 1900, 168. Acetylpropionylsalicylic acid osazoiie (AUDEN), P., 1899, 231. Acetyltartaric acid, diethyl ester, rota- tion of (MCCRAE and Pmmnson.), T., 1096 ; P., 1900, 161. Acid, C7H,,0J,.from the oxidation of isopilocarpiiie with perinanganate (JOWETT), T., 852; P., 1900, 124. C9H1,0, (two), from the hydrolysis of methyl bromodihydro-+-lanronolate (LEES and PERKIS), P., 1900, 19. CSH,,BrO, (two), from the action of hydrogen bromide in glacial acetic acid on +-campholmtone (LEES and PERKIN), P., 1900, 18. $H,,O, (two), from the action of alkalis on +-campholactoiie (LEES and PERKIN), P., 1900, 18. C,,H,,O,, from u-clibromocamyhor and nitric acid (LAPWORTH and CHAP- NAN), T., 310 ; P., 1900, 4. from the oxidation of tetramethyl- hmiatoxylin (PERKIN and YATES): P., 1900, 108. C1lHIGOJ, and Cl,Hl,O,, from the action of hydrogen cyanide and hydro- chloric acid on camphonic acid ( LAPWORTH and CHAPMAN), T., 450; P., 1900, 56. C,,H,,O,. and C,,,H,.O,.from tlie oxid- BEDDOW), 'r., 1121. C11H1207, C!XIH200w c20H20010? Acids froni ethyl uyanoacetate, niethod of sepnrating the cis and tmns- modifications of (THOIWE), T., 934 ; l'., 1900, 114. fatty, determination of the coiistitn- tion of (CROSSLEY a i d LE SUEUR), T., 83 ; P., 1899, 225. ilibasic, dissociation constants of ( W~LICER), T., 397. iiiorgaiiic, very weak, dissociation coii- stants of (WALKEF. and C'O~~MACK), T.,.5 ; P., 1899, 208. orgnnic, oxidation of, in presence of' ferrous salts (FENTOW and JOSES), T., 69 ; P., 1899, 224. Aconite alkaloids (DUNSTAN and READ), T., 45 ; P., 1899, 206. Aco?~itzcm Nn;UeZZ.us, comparison of the properties of tlie alkaloids from, with those from Japanese aconite (DUNSTAN and READ), T., 63. Acroses, U- a i d B-, from glycollic alde- hyde (JACKSOX), T., 129; P., 1899, 238.Address, presidential (TILoI:I)I~:), T., Aldehydes, compounds of, with iso- cyanides (WADE), P., 1900, 157. aromatic, condensation of, with azodi- carbdmide (YOUNG aud M 7 1 ~ ~ ~ n 1 ) , T., 224 ; P., 1900, 5. action of, 011 derivatives of B-naphth- ylamine (MORGAN), T., 1210 ; Aldehydo-o-aminobenzoic acid, plienyl- hydrazone and semicarbazone of (ELLIOTT), T., 214 ; P., 1899, 243. Alkali nitrites, coloiir of (DIVERS), P., 1900, 40. Blkalis, action of iodine 011 (TAYLOR), T., 725 ; P., 1900, 70. Slkaloids of Japanese aconite and of Acoititum ATapellzcs, comparison of properties of (DUNSTAS and READ), T., 63. of jaboraiidi leaves (JuwE~T), T., 473 ; P., 1900, 49. Ukyl iodides and dry silver oxide, alkylation by means of (LAKDEK), T., 736 ; P., 1900, 6, 90.action of, on incrcuric iotlide-sulph- ides of the fatty seiies (SMILES), T., 160 ; P., 1899, 240. compounds of, with isocyaiiides 555 : P., 1900, 77. ' Y., 1900,171. (WADE). P.. 1900. 157. I1 1- " I L.7 I" "l ation of trimethvlbrazilin (GTT.- I Alkvlstion b; ;uea;is of drv silver oxideINDEX OF SUBJECTS. 1345 Amides, action of dry sil vcr oxide aiid alkyl iodides on (LANDEK), 'l'., 736 ; P., 1900, 6, 90. Anhydro-cis-pentamethylene tricarb- oxylic acid (BOTTOMLEY aiid PEILKIN), 'l'., 304 ; P., 1900, 16. Amidosulphite, forination and decoin- position of (DIVERS and Ocawa:, 'l'. , 327 ; P., 1900, 38. Amidosulphuric acid, production of (DITEIS alla H,~G~L), T., 97s ; P., Ammonia, spectra of (HAWTLEY and DOBBIE), T., 318 ; P., 1900, 14.electrolysis of (SZARVASY), T., ti04 ; P., 1900, 3. solubility of aqueous, in potassium car- bonate solution (NEWTH), T., 775 ; P., 1900, 87. distribution of, between chloroform and water (Dawsos and MCCRAE), 'l'. , 1242; P., 1900, 172. action of dry sulphur dioxidc on dry (DIVERS and OGAWA), T.. 3 2 7 ; Y., 1900, 38 ; (DIVERS), P., 1900, 104. influence of, on the action of nitrifying organisms (WAIXNGTOS), P., 1900, 6 6. Ammonium hydroxinIidosuli)hate, yro- ductioii of (DIVERS and HAGA), T., 689; P., 1900, 71. tliiosulphate, prepamtion of, aiitl action of heat on (DIVERS and Ocawn), aniidosulphite, forination and decom- position of (DIVEIS and O c a w ~ ) , T., 237 ; P., 1900, 38. imidosnlpliite (DIVERS aiid Oc.iwa), P., 1900, 113.snlphites, preparation of, and action of heat on (DIVERS and OGAWA), T., 335 ; P., 1900, 39. trithionate, preparation of, and action of lieat on (DIVERS and OGAWA), T., 335 ; P., 1900, 39. Ammonium organic compounds :- Ammonium cyanate, solid, prepaiatioii aiid lwoperties of (W.hLiim and WOOD), T., 21 ; P., 1899, 209. cynnates, substituted, transformation of (WALKEP, and WOOD), T., 33 ; P., 1899, 209. Amy1 snlphide-mercuiic iodide (SmLes), isoAmylcitraconic acid (LAWRENCE), LsuAmylsuccinic acid, iiieltiiig point of 1900, 147. T., 335 ; P., 1900, 39. T., 164 ; P., 1899, 240. l'., 1900, 156. (LAWREXCE), P., 1900, 156. Anilides, action of hypochlorons aiid liypobromous acids on (CHAT i AWAY and ORI'OS), T., 134, 789, 797 ; P., 1899, 232; P., 1900, 102, 112; (CIIAwAwAY, OKTOX, and Hum- LEY), T., 800 ; p., 1900, 125 ; (AI~M- substitution in (ARMSIROSG), T., 104'7 ; P., 1900, 160.Aniline aiid its hydrochloride, elcctro- lysis of fused mixtures of (Sz~rn- VBSY), T., 208; P., 1899, 194. iiieta-sulphonation of (ARMSTROW ancl BEILRY), P., 1900, 159. Anilinoinduline, B,, 4, electrolytic pre- para tion of (SZM:VASY), T., 307 ; p., 1899, 194. Anisidine, tlinitro-, diszotisatioii of (N ELDOLLA and WECIISLER), T., 1172 ; P., 1900, 167. Annual General Meeting, T., 555; P., Anthranilic acid (o-nr)~ir~obo~:oic ( w i d ) , action of chloroforin and potash 011 (ELLIOTI'), T., 213 ; P., 1899, 243. Apigenin and Apiin, action of nitric acid on (PERKIX), T., 116; l'., 1900, 44. Apigetrin, and nitro- (PERKIN), T., 420; P., 1900, 45. drctostnphglos Uua-icwi, constituents of (PERKIN), T., 424; P., 1900, 45.Arsenic, new snlphide of (AS.$) (SCOTT), T., 651 ; P., 1900, 69. Atmospheric air, estimation of carbon dioxide in (WALKER), T., 1110; P., 1900, 164. Atomic weight of nitrogen (DEAs), T., 117; P., 1899, 213. Azines, formation of, by the decompo- sition of semicarbazones ( KIPPINU), P., 1900, 64 ; (Yovsc and WITHAM), P., 1900, 73. Azo-compounds differentiated front hydr- azone compounds by bromine (ARM- Azodicarbamide, condensation of, with aromatic aldehydes (YOVSG atid WITHAM), T., 224 ; P., 1900, 5. Azoimide, electrolysis of ( SZARVASY), dissociation constant of ( WES r), T., SrROSG), T., 1047 ; p., 1900, 160. 1900, 77. STIZOSG), P., 1899, 243. T., 606; P., 1900, 3. 705; P., 1900, 74.1346 INDEX O F SURJECTS.Azophenine, electrolytic preptrat,ion of (SZARVASY), T., 207; P., 1899, 194. B. Balance Sheet of the Clieinical Society, March, 1900, and of the Research Fund, March, 1900. See Annual General Aleeting, T., 588. Barium chlorate, decomposition products of (SODEAU), T., 137; P., 1899, 157. hydroximidosulphate, production of (DIvms and HAGA), T., 690 ; P., 1900, 71. Benzal-. See Benzylidene-. Benzaldehyde, actiou of, on ethyl-B- iiaphthylaniine (MORGAN), T., 1210 ; P., 1900, 171. action of dry silver oxide aiid ethyl iodide on (LANDEK), T., 746. Benzaldoximee, nati- and s p , curves of the molecular vibrations of ( HAISLEY and DOBBIE), T., 509 ; P., 1900, 55. Benzamide, action of dry silver oxide ";"d ethyl iodide on (LAXDE~L) T., t 3 6 ; Y., 1900, 6. hcrcachloride, preparation and proper- 1900, 176.Benzamidine, condensation of, with the ethyl esters of acetylenedicarboxylic and chlorofumaric acids (RUHEMANS and STAPLETON), T., 809 ; P., 1900, 122. action of, on ethyl phenylpropiolate ties of (hiATTHEWY), T., 1275 ; P., (kJHElMANK and STAPLETON), T., 239 ; P., 1900, 11. o-bromo- aiid -chloro-, nitrogen brom- ides and chlorides from (CHATTAwBY and ORTON), T., 800. Benzene, refraction and magnetic rota- tion of (PEBKIK), T., 267; P., 1899, 237. chloro-, tetrachloride, preparation of (MATTHEWS), T., 1276 ; P., 1900, 176. Benzeneazo-o-dzlromophenol, its acyl de- rivatives and ethyl ether ( HEWITT and ASTON), T., 712; P., 1900, 89. p-bronio-, and its acyl derivatives and ethyl ether (HEWITT and ASTON), T., 810 ; P., 1900, 131.Benzeneazoethyl-B-naphthylamine, p - nitro- (MORGAN), T., 1214. Benzeneazo-o-nitrophenol, preparation, properties, and reactions of, and its acetyl and benzoyl derivatives (HEWITI), T., 99; P., 1899, 229. Benzanilide (SILBEBRAD), 1'. , 11 91. Benzeneazophenol, brominatioii of (HEwI'rr and ASTON), T., 712, 810 ; P., 1900, 89, 131. nitration of (HEWITT), T., 99 ; P., 1899, 229. Benzeneazophenol, p-nitro- and its acetyl aiid benzoyl derivatives, and p-amino-, aid its acetyl derivatives (MELDOLA and WILLIAMS), P., 1899, 196. Benzene-o-disulphonic acid and its salts arid derivatives (ARMSTRONG and NAPPEIL), P., 1900, 160. Benzenoid hydrocarbons, refractive and magnetic rotatioii of (PISKKIS), T., 267; P., 1899, 237. Benzoic acid, oxidation of, in presence of ferrous salts (FEsrrox and JOSES), T., 76 ; P., 1899, 224.hexnchloride, preparation of (MAT- THEWS), T., 1276; P., 1900, 176. Benzoic acid, o-amino-. See Anthranilic acid. na-nitro-, ethyl ester, chloro- a i d bromo-iniide of (STIEGLITZ and SLOSSON), P., 1900, 2. Benzoic chloride, action of, on s-3:6-tli- niethyldihydrotetrazine (SILmait2ii)), T., 1185 ; P., 1900, 169. Benzoin, action of dry silver oxide and alkyl iodides on (LANDER), T., 733; P., 1900, 6, 90. Benzonitrile Jvxachloride, preparation and properties of (MATTHEWS), T., 1273 ; P., 1900, 175. Benzo-y-pyrone ant1 its carboxylic acid (RUHEMANX and S~APLETON), T., 1180 ; P., 1900, 168. Benzoylacetic acid (R~HEMANN and STAPLETON), T., 1180; P., 1900, 168. Benzoylaconitic acid, ethyl ester of (RUHEMANN and STAPLETON), T., 804 ; P., 1900, 121.Benzoyl-s-dibenzyl-i-diphenylethylene- diamine (" di6enzyZn~nurinc 'I) (JAPP and MOIR), T., 608 ; P., 1899, 211. Benzoyl-s-dimethyl- and -s-diethyl-i-di; phenylethylenediamine ( " dimetJ~yZ- aiid ' ' diethyl-amarine ") ( JAPP aiitl MOIIL), T., 608; P., 1899, 211. aa-Benzoylphenylhydrazide, action of heat on (SILBERKAD), T., 1190; Y . , 1900, 169. Benzylanilinesulphonic acids (SbIED- LEY), I?., 1900, 160. Benzylideneazine, formation of (Y ouxa and WrTwm), P., 1900, 73. Benzylidenehydantoin and Benzylidene- imino- and -thio-hydantoin (RUHE- MANN and STAPLETOX), T., 241 ; P. 1900, 12.ZNDEX OF SUBJECTS. 1347 Benzylidene-2-naphthylamine, 1 -bromo - and 1 -chIoro-, and their hydrocyanides and a- and p-nitro-derivatives (h1or:- GAY), T., 1216; P., 1900, 171.Benzylideneneobornylamine ( FORSTER and HART-SMITH), T., 1157 ; P., 1900, 166. Benzylidenephenylhydrazone ( MOE- GART), T., 1210. Benzylidenesemicarbazone, oxidation of Bismuth snlphates (ADIE), P., 1899, 226. Boric acid, dissociation constant of (WALKER and CORMACR), T., 16 ; P., 1899, 208. Bornylamine salts, and their molecular rotation (FOESTER and HAw-Sarrm), 'l'., 1152 ; P., 1900, 166. 8-Bornylhydroxylamine (1-hydroxyl- crminocnniphnne) (FORSTEE), T. , 255 ; P., 1900, 14. Bornyloxamide ( FORSTER and Hanr- Brazilin ( GILBODY and PEPKIN), P., 1899, 241. constitntion of (GILBODY, PERKIS, and YATES), P., 1900, 107. Butanedicarboxylic acids. See :- Diinethylsuccinic acid. Methylglutaric acids. cycZoButanedicarboxylic acid (cis-tetm- iizethy7ene-1: 3-dicnTbozylic acid), forniation of ( BOTTOMLEY and PER- MX), T., 306 ; P., 1900, 16.Butanetetracarboxylic acid, a6-di- bromo-, ethyl ester (LEAN), T., 103 ; P., 1899, 197. wButyl isocyanide (WADE), P., 1900, 157. isoButylbenzene, preparation and pro- perties of (PERKIS), T., 268 ; p., 1899, 237. isoButyric acid, a-bromo-, ethyl ester, condensation of, with ethyl malonates and ethyl cyaiioacetatcs ( LAWREWE), P., 1900, 154. (YOVSG alld WITIIAhf), T., 226 ; P., 1900, 5. SMITH), T., 1155 ; P., 1900, 166. C. Cadmium iodide, combination of, with ammonia in aqueous solution (D,4w~ SON and MCCKAE), T., 1246 ; P., 1900, 173. Calcium chloride, combination of, with ammonia in aqueous solution (Daw- SON and McCK~E), T., 1249 ; P., 1900, 173. hydroxirnidosulphate, production of (DIVERS and HAGA), T., 690; P., 1900, 71.Camphane, 1-nitro-, +-nitro- and its potassium and benzoyl derivatives, 1:l-bromonitro-, 1:l-chloronitro-, and 1:l-iodonitro- (FORSTER), T., 251 ; P., 1900, 13. Camphanic acid, isomeride of ( PERKIN and THOBPE), P., 1900, 152. 4-Campholactone and its isomeride (LEES and PERKIK), P., 1900, 18. Campholide, a-bromo-, its formula and hydrolysis ( LAPWORTH and CHAP- MAN), T., 446 ; P., 1900, 56. dibromo- (LAPwoRrH and CHAPMAI\'), T., 310 ; P., 1900, 4. Campholytic acid and its stereoisomerid?, reactions and structure of (WALKER and CoRarAcIc), T., 374 ; P., 1900, 58. Camphonic acid, its oxime, semicarh- azone, and phenylhydrazones, a d action of bromine and of hydropl cyanide on (LAPWOKTH and CH-IP- Camphonolactone, ~rzm~o- and tri-bronio- (LAPWORTH and CHAPMAN), T., 446 ; P., 1900, 56.Camphononic acid, formation of (L.4r- WOR'I'H), T., 1070. action of bromine and hydrogen cyanide on, and its oxinie (LAP- WORTH and CHAPMAS), T., 452 ; Camphopyric acid a i d anhydride bronio-derivatives of (G~RDNER), P., 1900, 46. Camphor, constitution of (LAPWORTH), vapour pressure of (ALLEN), T., 413 ; P., 1899, 135. Camphor, a-dibromo-, action of fuming nitric acid on (LAPWOKTH and aa'-bromonitro- ( LAPWORTH and CHAPMAN), T., 310 ; P., 1900, 4. cyano-, and its chloro- and bromo- derivatives and their hydrolysis 128. Camphorenic acid, bromo-, formula of (LAPWORTH and CHAPMAN), T., 446 ; P., 1900, 56. Camphoric acid, constitution of (WALKER), T., 390 ; P., 1900, 60. experiments on the synthesis of (PERKIN and THORI'E), P., 1900, 152.Z-isocamphoric acid and its ethyl esters (WALKER and WOOD), T., 3S3 ; P., 1900, 59. Camphoric acids, configuration of (WALKER and WOOD), T., 383 ; P., 1900, 59 ; (WALKER), T., 395 ; P., 1900, 61. MAS), 'r., 446 ; P., 1900, 56. P., 1900, 57. lr., 1053 ; P., 1900, 128. CHAPMA4X), T., 309 ; P., 1900, 4. (LAPWORTH), rr., 1053 ; P., 1900,1348 INDEX OF SUBJECTS. Camphoric anhydride, action of alumin- ium chlcride on (LEES and PERKIN), Camphoronic acid, formation of (LAP- WORTH), T., 1071. Camphoroximeacetic acid and its sodium and bornylamine salts ( FOI~STER and 166. P., 1900, 18. HART-SMITH), T., 1154 ; P., 1900, Cane-sugar. See Sucrose. Carbamide (uren), rate of formation of, from solid ammonium cyanate (WALKER and WOOD), T., 30 ; P., 1899, 209.Carbohydrates, action of hydrogen Deroxide on, in Dresence of ferrous salts (MORRELL and CROFTS), T., 1219 ; P., 1900, 171. Carbon monoxide (carbonic oxide) and oxygen, influence of the nascent state on the combination of dry (RUSSELL), T., 361 ; P., 1900, 42. dioxide (carbonic anhydride), dissocia- tion constant of (WALKER and CORMACK), T., 8 ; P., 1899, 208. estimation of, in the atmosphere (WALKER), T., 1110 ; P., 1900, 164. disulphide, estimation of (RUSSELL), Carbonyl sulphide, estimation of (Rus- SELL), T., 356; P., 1900, 41. Catecholacetic acid (o-hydrozyphen- ozyncetic acid), and its ethyl ester, anhydride and anilide (CARTER and 152. Chemical constitution and fluorescence (HEWITT and PERKIXS), T., 1324 ; P., 1900, 178; (HEWITT), P., equilibrium between hydrogen per- oxide and “ persulphuric acid ” (LOWRY and WEST), T., 955 ; P., 1900, 127, Chemistry, progress of, in Great Britain and Ireland during the 19th century (THORPE), T., 562.Chlorates, decomposition of (SODEAU), T., 137, 717; P., 1899, 157; 1900, 88. Chlorine, evolution of, from chlorates T., 359 ; P., 1900, 41. LA4WREKCE), T., 1222 ; P., 1900, 1900, 3. (SODEaU), T., 137, 717 ; P., 1899, 157 ; 1900, 88. amount of, in rain-water collected a t Cirencester (KINCH), T., 1271 ; P., 1900, 183. Chlorophyll, chemistry of (MARCH- LEWSKI and SCHUNCK), T., 1080; P., 1900, 148. Chrysoidine hydrochloride, bromo. and chloro- (MORGAN), T., 1205 ; P., 1900, 170. Chrysoidinesulphonic acid, chloro- and bromo-, potassium salts of (MORGAN), T., 1205.Cinnamal-. See Cinnamylidene-. Cinnamylidene-2-naphthylamine, 1 - bromo- and l-chloro-, and their hydro- cyanides (MOEGAS), T., 1217; P., 1900, 171. Cinnamslidenesemicarbazone, oxidation of (Y~USG and WITHAM), T:, 230 ; P., 1900, 5. Citrazinic acid, coiistitution of (SELL and Cobalt nitrite, double potassium and sodium salt of (ADIE and WOOD), T., 1076; P., 1900, 17. oxides, hydrated, green- and buff- coloured (HARTLEY), P., 1899, 202. potassium sulphate (MALLET), T., 222; P., 1899, 227. Colour of alkali nitrites (DIVEIS), P., Colouring matters of Arctostaphylos Uvn- w s i , Coriarin myrtifolin, Hcenzn- toxylm cn?npechiantcm, Myrica Gale, B~LZCS i!Ietopium, and Robinia Pseud- nccccin (PERKIN), T., 423 ; P., 1900, 45. of chlorophyll and their spectra (MARCHLEWSKI and SCHUNCK), T., 1080 ; P., 1900, 148.Copper, heat of combination of, with zinc (BAKEIL), P., 1899, 195. Copper chloride, combination of, with ammonia in aqueous solution ( DAW- SON and NCCRAE), T., 1245 ; P., oxide, combination of, with ammonia in aqueous solution (Dawsox and McCns~), T., 1255 ; P., 1900, 173. snlphate, combination of, with ammo- nia in aqueous solution (DAWSON and McCnilE), T.,11243; P., 1900, 172. reaction of solutions of, with mag- nesium, iron, or zinc (CAVEY), P., 1899, 232. sulphovanadite. See Sulvanite. Corinria myrtifolia, constituents of (PERKIN), T., 428; P., 1900, 45. Cresols, o-, m-, and p-, condensation of, with ethyl phenylpropiolate (RUHE- MANN and BEDDOW), T., 984, 1119 ; P., 1900, 123, 165. Iresoxy-. See Tolyloxy-.Jritical constants of diisopropyl and diisobutyl (YOUNG and FORTEY), T., 1126; P., 1900, 165. DOOTSON), T., 233 ; P., 1900, 9. 1900, 40. 1900, 172.INDEX O F SUBJECTS. 1349 Critical constants of n-octane (YOUNG), T., 1145 ; P., 1900, 166. Crotonic acid, ethyl estrr, condensation of, with ethyl oxalate (lAAI’WORTIf), Crystallography of d - and I-isoxmarine (Pope), T., 787 ; P., 1900, 119. q-Cumene (1 :3:4-t,.ieth?JIDciz=ene), refrac- tion and inagiletic rotation of (PEIL- ICIS), T., 267 ; P., 1899, 237. Cuminylidene-2-naphthylamine, 1- bromo- and 1-chloro-, and their hydro- cyanides (XIORGAN), T., 1216 ; €’., 1900, 171. isocyanides, compoiinds of, with alde- hydes and slkyl iodides (WADE), P., 1900, 157. Cymene (1 :4-ntetl~~liso~,rop~Zbe?zrelze) re- fraction ancl magnetic rotation of (PERKIN), T., 267 ; P., 1899, 237.I?., 1900, 132. D. Dehydracetic acid (COLLIE), T., 971 ; P. , 1900, 147. Dehydrocamphoric acid, formation and oxidation of (LIPWORTH), T., 1056 ; Density of the halogens, nitrogen and oxygen a t their boiling points (DRUGMAX and RAMSAP), T., 1228; P., 1900, 172. Deoxybenzoin benzylideneanilines and their hydrochlorides, isomeric ( F ~ a x - CIS), T., 1191 ; P., 1900, 169. Deoxymorphine (SCHRTVER and LEES), Dextrose (d-glzccose, g r i y e sugnr), action of potassium persulphate on (MOREELL and CROFTS), T., 1220 ; P., 1900, 172. Diacetylacetone, action of iiiethyl iodide on the sodium derivative of, and orcinol derivatives froin (COLLIE and STEELE), T., 961 ; P., 1900, 146. Diacetyltartaric acid, diethyl ester, rotation of (MCCRAE and PATTERSON), T., 1096 ; P., 1900, 161.Diacylamarines, constitution of (JAPP and ~ ~ o I R ) , T., 632 ; P., 1899, 212. Dialkylamaronium salts, constitntion of (JAPP ancl ~IoIR), T., 615 ; P., 1899, 212. Diazosalicylic acid and chloride and sulphonic acid (AUDEN), P., 1899, 231. Diazotisation, elimination of a nitro- group during (MELDOLA and WECH- SLER), T., 1172; P., 1900, 167. Dibenzoyl-s-dibenzyl-i-diphenylethyl- enediamine ( J A W and ~ ~ o I R ) , T., 608 ; P., 1899, 211. P., 1900, 128. rr., 1024 ; P., 1900, 143. s-Dibenzoyl-i-diphenyle thylenediamine (JAPP and MOIR), T., 611 ; P., 1899, 211. s-Dibenzoylhydrazide (SII~BER~AD), T., 11% ; P., 1900, 169. Dibenzoylsuccinic acid, ethyl esters, nbsor1)tion curves of (HARTLEY and Dibenzyl wlphide-mercnric iodide (SMILIX), T., 164 ; P., 1899, 240.“ Dibenzylamarine.” See Benzoyl-s- dibenzyl-i-diphenylethyleiiedianiine. s-Dibenzyl-i-diphenylethylenediamine (JAPP and MOIR), T., 610 ; P., 1899, 211. Dibenzyl ketone benzylideneanilines and their hydrochlorides, isomeric (F~ascrs), T., 1191 ; P., 1900, 169. Dibenzyllophonium chloride (JAPP and Dibenzyl-B-naphthylamine, and the action of forinaldehyde on (MORGAN), T., 825; P., 1900, 131. Dibornyloxamide (FORSTER and HART- SMITH), T., 1152; P., 1900, 166. Diisobutyl. See Octane. s-Diisobutylsuccinic acids, cis- and trans-, preparation and dissociation constants of (BOSE and SPRASKLISG), T., 1299 ; P., 1900, 184. Diethyl sulphide-mercuric iodide (SMILES), T., 164 ; P., 1899, 240. 2:2 -Diethyldiamino-1:l’dnaphthyl- methane, and its dibenzoyl deriva- tive (MORGAK), T., 827 ; P., 1900, 131.Diethyl-a- and -B-naphthylamines, and the action of formaldehyde on (Mort- GAN), T., 823 ; P., 1900, 131. Diethyltetrahy dro-P-naphthylamine, action of formaldehyde on (MORGAN), T., 824. Dihydroxybutanetetracarboxylic acid, and its 8-lactone (LEAS), T., 10.1, 108 ; P., 1899, 197. Dihydroxylamine derivatives, non-exist- ence of (DIVERS and HMA), T., 437 ; P., 1900, 5-1. Dihydroxylaminesulphonates, non- existence of (DIVERS and H a n ~ ) , T., 437 ; P., 1900, 54. 26-Dihydroxyp yridine-4-carboxylic acid. See Citrazinic acid. 2:6-Dihydroxypyridine-3:4-dicarboxylic acid, ethyl ester (RUHEMANX and STAPLETON), T., 243; P., 1900, 12. Dihydroxystearic acid, action of fused potash on (LE SUEUR), P., 1900, 91.Dimethyl sulphide-mercuric iodide (SMILES), T., 164 ; P., 1899, 240. ‘ I Dimethylamarine.” See Renzoyl-s- dimethyl-i-diphenyle t hylenediainine. DOTME), rr., 49s ; P., 1900, 57. JIOIR), l’., 614; P., 1899, 212.1350 INDEX OF SUBJECTS. aa-Dimethyl-a,-isoamylsuccinic acid, pre- paration and dissociation constant of (BOSE and SPRASKLIRG), T., 1306 ; P., 1900, 184. Dimethylbutanetricarboxylic acid, ethyl ester, action of sodium aud methyl iodide on (PERKIN and THORPE), P., 1900, 152. aa-Dimethyl-a,-isobutylsnccinic acid, and its a’-cyano-derivative (LAW- RENCE), P., 1900, 155. preparation and dissociation constant of (BONE and SPRASKLING), T., 1304 ; P., 1900, 184. Dimethyldiacetylacetone (COLLIE aiid STEELE), T., 961 ; P., 1900, 146.s-3:6-Dimethyldihydro- 1 :2:4:5- tetrazine and the action of heat and of benzoic chloride on (SILBERRAD), T., 1185 ; P., 1900, 169. aa-Dimethyl-a,-ethylsuccinic acid, pre- paration and dissociation constant of (BONE and SPRANKIJNG), T., 1305; P., 1900, 184. Dimethylethylsulphine iodide mercuric iodide (SMILES), T., 162, 1 6 7 ; P., 1899, 240. ad-Dimethylglataric acids (peq~tnne- dicurbozglic acids) (THORPE), T., 933 ; (HOWLES, TIIOKPE, UDALI,, and NEALE), T., 948 ; P., 1900, 116. BB-Dimethylglutaric acid (pentaitc- dicnrboxglic acid), ad-clibromo-, ethyl ester, condensation of, with ethyl sodiomalonate (PERKIN, THOKPE, and WALKER), P., 1900, 149. Dimethylcyclohexanecarboxylic acid (hexalzydroxylic acid) and its isomer- ide (LEES and PEI~KIS), P., 1900, 20.Dimethyl-a- and -8-naphthylamines and the action of formaldehyde on (MORGAS), T., 822; P., 1900, 131. aa-Dimethyl-a,-n- and -iwpropyl- succinic acids, preparation a i d dis- sociation constant of (BONE and 184. 2:5-Dimethylpyrazine, absorption spec- trum of (HARTLEY and DOBBIE), T., 846 ; P., 1900, 129. Dimethylpyrone, action of sodium ethoxide on (COLLIE and STEELE), T., 970 ; P., 1900, 146. action of iodine on the barium and sodium salts of, and its periodide (COLLIE and STEELE), T., 1114; P., 1900, 164. as-Dimethglsuccinic acid and anhydride (PERKIS, THOr:m, and WALKER), 1’. , 1900, 149. SPRAiXIiLING), T., 1305 ; P., 1900, aa-Dimethylsuccinic acids, preparati on and dissociation constants of ( B ~ I S E and SPRANKLING), T., 1204; P., 1900, 184. 3:5-Dimethyl-1:24-triazole, synthesis of, and its hydrochloride and nitrate (SILBEI~RAD), T., 1187; P., 1900, 169.Dimorphism of cyanocamphor and its chloro- and bromo-derivatives (LAI’- WORTII), T., 1059; P., 1900, 128. Diphenacetyltartaric acid, diethyl ester, rotation of (hlCCRAE and PATTEESON), T., 1096 ; P., 1900, 161. as-Diphenoxysuccinic acid, ethyl ester (RUHEhlANK and BEDDOW), T., 1121 ; (RUIIEMAXN and STAPLETOS), T., 1183 ; I’., 1900, 168. Diphenyldiazoxole, preparation and isolation of ( SILBERBAD), T., 1188 ; P., 1900, 169. s-3:6-Diphenyldihydrotetrazine (SIT,- EERRAD), ‘l’., 1188 ; P., 1900, 169. Diphenylethylenediamine, its nitro-de- rivntives, nitrate and mercurichloride (NILLS), T., 1020 ; P., 1900, 127. i-Diphenylethylenediamine (m. p. 120- 121”), action of iiitrous acid on (JAPP and Mom), T., 642.DiphenylFyrimidone (RUHEYANN and Diphenylsuccinic acid, dithio-, ethyl ester (RUHEJIANS and STAYLETON), 3: 5-Diphenyl-1: 2: 4-triazole, preparation and isolation of (SILBERRAD), T. , 1188 ; P., 1900, 169. Diisopropyl. See Hexaue. S-Di-7~- and -iso-propylsuccinic acids, cis- and h n s - (octnneclicnrboxylic acids), preparation mid propcrties of (BOSE aiid SPI?.\NKLING), T., 654; P., 1900, 71. Dissociation constants of alkyl-substi- tuted succinic acids (BOSE and SPRASGLIXG), T., 667, 1298; P., 1900, 72, 184. of normal saturated dibasic acids (WALKER), T., 397. of azoimide (WEST), T:, 705; P. , 1900, i4. of campholytic and isolauronolic acids of cainphoric acid aiid its deriva- tives (WALKER), T., 396 ; P., 1900, 61. of carbon dioxide (WALKER and CORMACK), T., 8 ; P., 1899, 208.of dehydracetic acid ( WALKE~L), 1’. , 971 ; P., 19Q0, 147. of hydrocyanic acid (WALKER and STAYLETOX), T., 239; P., 1900, 11. T., 1183; r., 1900, 168. (WALIiEIt), T., 399. CORhlACK), T., 1 5 ; P., 1899, 208.INDEX OF Di-o-, - / / L - , a d -y-tolylethylenediamines, their nitro-derivatives, nitrates, and niercurichlorides (MILLS), T., 1020 ; P., 1900, 127. E, Elaidic acid, formation of, aid action of dilute nitric acid on (EDMIED), l’., 1899, 190. Electrical conductivity of acids, ap- l’aratus for measuring the P., 1899, 208. of azoimidc (WE~T), T., i 0 7 ; P,, 1900, 73,. Electrolysis of the nitrogen hydrides and of hydroxplarnine (SZ.LKVASY), T., 603 ; P., 1900, 3. of f~isecl mixtures of aniliiie and its Iiydrocliloride (Szanvasr), T., 208 ; P., 1899, 194.Electrolytic dissociation of vcry weak inorganic acids ( WALKEC and Cox- XACK), T., 5 ; P., 1899, 208. preparation of induline dyes (Szilii- Ellagic acid from various taniiiii niattc~ s Equilibrium between hydrogen peroxide and yersulphnric acid ( LOWRY and WEST), T., 9 E i ; I)., 1900, 127. Ethanedicarboxylic acids. See :- Metliylmnlonic acid. Succinic acid. Ethenyll?.iaminonaphthalene and its isomelide and their salts, and acyl-, methyl-, and phenylazo-derivatives (NI~LDOLA and EYSON), T., 1169; l’., 1900, 166. Etherification, inhibiting efyect of, 011 substitution in phenols ( ~ ~ R J I ~ ’ ~ ’ ~ : O S C ; mid LEWIS), P., 1900, 157. of B-naphthol derivatives ( D.L\-Is), T., 33 ; P., 1899, 210. Ethers, formation of, by means of dry silver oxide and alkyl haloids (LASIIEH), T., 729 ; P., 1900, 6, 90.Ethoxycaroaic acid and anhydride (PEiuiIs, THORPE, aiid WALKER), P., 1900, 149. 2-Ethoxypyridine, 3:5:6:4-t?.ichloro- amiiio- (SELL aiid Doorsos), T., 4. Ethyl iodide, action of, 011 mercurous nitrite (RAY), P., 1899, 239. Ethylacetoacetic aoid, ethyl ester, action of dry silver oxide and ethyl iodide on (LANDEB), T., 741 ; P., 1900, 6. Ethylbenzene (phe?~gZetl~n?ze) refraction and magnetic rotation of (PERKIS), T., 267 ; P., 1899, 237. VOL. LXXVII (WALKER :i11d c‘uIihi.iCli), T., 5 ; WY), ‘r., 207 ; Y . , 1899,.194. (l’EIXIS), T., 483. SUBJECTS. 1351 Ethyldiacetylacetone (2) (COLLIE and Ethyl-B-naphthylamine, action of benz- aldehyde on (MORGBS), T., 1210 ; P., 1900, 171.hydrochloride, action of fornialdehyde on (Moncas), T., 828 ; P., 1900, 131. Ethylisopropylacetic acid. See Heptoic acid. Ethylisopropylmalonic acid and its etliyl ester (CEOSsLEY and LE S r E U R ) , T., 83 ; P., 1899, 225. STEELE), ‘r., 970 ; P., 1900, 146. I?. Ferrous cyanide, coiistitution of ( BROWS- ISG), T., 1236; P., 1900, 172. Fluorescein, nitro-derivatives, prepara- tion and constitution of (HEWITT and PECKINS), T., 1324 ; P., 1900, 178. Fluorescence and chcmical constitution (HEWITT and PERKISS), T., 1324 ; P., 1900, 178 ; (HEivITT), P., 1900, 3. Formaldehyde, formation of (PESTON), T., 1297 ; P., 1900, 148. condensation of, with ethyl malonate (BOTTOJILEY and PERKIS), T., 294 ; P., 1900, 16. action of, on aniines of the naphthal- ene series (MORGAN), T., 811 ; P., 1900, 131.Formylanilide, o-bromo- and -chloro-, nitrogen bromides and chlorides from (CIIAITAWAY and ORTOS), T., 800. Fumaric acid, cliloro-, ethyl ester, coii- densation of, with benzamidico and guanidine (RUHEJIASN and STIPLETOS), T., 808 ; P., 1900, 122. action of sodium phenoxidc on ( RL-IIEMASS and UEDDOW), T., 1123 ; P., 1900, 165. Furfuraldehyde, estimation of (COK- Furfurine, an isomeride of (MILLIXUTON IIACIC), ‘y., 990 ; P., 1900, 166. and HIBBEKT), P., 1900, 101. G. Galactose, oxidation of, by hydrogen peroxide (MORRELL and CROFTS), T., 1219. Gas, liquefacticn of a, by “ self-cooling ” (NEWTH), P., 1900, 87. Genistein and its methyl and ethyl ethers and their acetyl derivatives and deconiposition products ( PERKIN and HORSFALL), T., 1310 ; P., 1900, 182.4 z1352 INDEX O F SUBJECTS. cl-Glucose. Set: Dextrose. Olncoeidee from parsley (PERKIN), T. Glutaric acid (n-pyrutarlcwic acid propanedicarbozylic acid), formatior of (BOTTOMLEY and PERKIN), T. 300 ; P., 1900, 16. bromo-, ethyl ester, action of alcoholic potash on (BOWTELL and PEHKIN), P., 1899, 241. Glyceric acid, oxidation of, in presence of fyrons salts ( FENTON and JONES), T., r2 ; P., 1899,224. Glycollic acid, oxidation of, in preseiicc of ferrous salts (FENTOS and JONES), T., 70 ; P., 1899, 224. Glycollic aldehyde, formation of a- and B-acrose from (JACKSON), T., 129 ; P., 1899, 238. degradation of (FEXTON), T., 1294 ; P., 1900, 148. Glycollic aldoxime (FESTON), T., 1296 ; P., 1900, 148. Glycollonitrile, acetyl derivative, pre- paration of, and action of amnioiiiacal silver oxide on (FENTON), T., 1297 ; Y., 1900, 148.Glyoxaline-red, formation of (RUHE- MANX and STAPLETOX), T., 809; eraminee, presence of invertase in some plants of the (O’SULLIVAK), T., 691 ; P., 1900, 61. Guaiacol, condensation of, wi tli e thy1 phenylpropiolate (RUHEMASS and 168. Guanidine, condensation of, with the ethyl esters of acetylenedicarboxylic and chlorofumaric acids ( RUHE- MAKN and STAPLETON), T., 805; P., 1900, 122. action of, on ethyl phenylpropiolate (RUHEMAKK and STAPLE~ON), T., 242 ; P., 1900, 12. 416 ; P., 1900, 44. P., 1900, 122. STAPLETON), T., 1180; P., 1900, H. Haematoporphyrin, actioii of bromine on (MARCHLEWSKI and SCIIUXCK), T., 1091 ; P., 1900, 149. Hematoxylin (GILBODY and P’BHKIS), constitution of (PEeK1,I- and YATES), Hn.niatoxyZo?L cccmpechia?turn, constitu- ents of (PEKKIN), T., 426 ; P., 1900, 45.Halogens, specific gravity of the, a t their boiling points (DKUGMAK and lLi,\rsaY), T., 1838 ; P., 1900, 172. P., 1899, 241. P., 1900, 108. Eeptanedicarboxylic acide. See : - Heptoic acid (a-isopropylbutyric ncitl, cth?ilisop?.opyZncetic acid) and its derivatives, preparation of (CROSSLNY 225. its ethyl ester, amide, anilide, and toluidide (CKOSYLEY and LS SuEuu), T., 93 ; P., 1899, 225. a-bronio-, ethyl ester, actioii of clietliylaniline on (CROSSLEY and LE SUEUR), T., 95 ; P., 1899, 225. Heptoic acid (aSB-triinetkyZb~6tl/1.ic acid) Y-cyano-, ethyl ester (THOIWE and YOUKG), T., 939 ; P., 1900, 115. Hexahydro-xylic acid. See Dimethyl- cyclohexanecarboxylic acid.Hexamethylene. See cycloHexaiie. Hexane (diisopropyl), preparation, vapour pressures, specific volumes, and critical constants of (Yorsc: and FORTEY), T., 1126 ; P., 1900, 165. cycZoHexane (hexnmcthy Zem), spectrum of (HARTLEY and DOBBIE), T., 846 ; P., 1900, 129. and mono- and di-chloro-, refraction and magnetic rotation of (YOUXG and FORTEY), T., 372 ; P., 1900, 44. Methylisopropylglutaric acids. Tetramethylglutaric acids. and LE SUEUK), T., 89 ; P., 1899, Hexanedicarboxylic aoide. See :- Dime t hyle t h y lsuccinic acid. 8- isoPropylglu taric acid. Trimethylglutaric acid. Hexanetricarboxylic acid. See Dinietliyl- butaiietricarboxylic acid. sgcZoHexene (telrnlzydrobe?~~nc), spec- trum of (HARTLEY and DOBUIE), T., 846 ; P., 1900, 129. Bexenoic acid (B-isopropylacrglic acid), ethyl ester, condensation of, with ethyl sodiocyanoacctate (HOWLES, TIIORPE, and UDALL), T., 943; P., 1900, 115.Homocamphanic acid, formation of (LAPWOKTH), T., 1066 ; P., 1900,128. z-Homocamphoramio acid, forination of (LAPWORTH), T., 1061 ; P., 1900, 128. Komocamphoric acid and its bromiiia- 1900, 128. a-bromo-, and its diethyl ester, action of bases on (LAPwOirrH), T., 1066 ; P., 1900, 129. Jomocamphoric dianilide ( LAPWOHTH), Xomocamphoronic acid (LAPWOI~TH and bromination of (LAPWORTH a i d CHAPMAN), T., 452 ; P., 1900, 56. ti011 (LAPWOlLTII), 1’. , 1053 j P., T . , 1063. CHAPMAN), l’., 309 ; P., 1900, 4.INDEX OF Hydrazine, clcctrolysis of (SZARVASY), T., 605 ; P., 1900, 3. Hydrazinosalicylic acid (ACDEN), P., 1899, 231. Hydrazoic acid.See Azoiniide. Hydrazone-compounds differentiated from azo-compounds by bromine (ARMSTROSG), P., 1899, 243. Hydrindamine chloro- and bromo- camphorsulphonates and c i s - s - camphanates, isomeric (KIPPISG), T., Hydrobromic acid (hylrogcn bromitle), preparation of p r e (Scorr), T., 648 ; P., 1900, 69. Hydrocyanic acid (hgrldroyciL cycmide), preparation of (BKOWNISG), T., 1235 ; P., 1900, 172. coiistitntion of (WADE), P., 1900, 156. dissociation constant of (WALKEI:. and CORJIACK), T., 15 ; P., 1899, 208. Hydroferrocyanic acid, constitution of', decomposition of, in air, actioii of heat and of ether on (B~LOIVSIXG), T., 1233; P., 1900, 172. decomposition of (ADIE and BROWS- IXG), T., 157 ; P., 1899, 226. Hydrogen bromide. See Hydrobromic acid. cyanide.See Hydrocyanic acid. nitride. See Azoiniide. 861 ; r., 1900, 51. Hydrogen peroxide, equilibrium between l'ersulphuric acid and ( LOWRY and WEST), T., 955 ; P., 1900, 1?7. action of, on carbohydrates, 111 pre- sence of ferrous salts (I\foRi:ELL 171. interaction of, with sulphnric acid (LOWRY and WEST), T., 950; P., 1900, 126. Hydrogen tetroxide, Bach's ( h A 1 - Hydrogen sulphide, dissociatioii coii- stant of (WALKER and CORJIACK), T., 14 ; P., 1899, 208. estimation of (RUSSELL), T., 354 ; P., 1900, 41. Hydroxyamidosulphatea, decoiiiposition of, by copper sulphate (DIVEKS and HAGA), T., 978; P., 1900, 147. o-Hydroxybenzoic acid. See Salicylic acid. Hydroxybenzylidene-2-naphthylamine, l-bromo- and l-chloro-o- and -p, and their hydrocyanides (MORGAN), T., 1216 ; P., 1900, 171. a-Eydroxycamphopyric acid (GARD= a-Hydroxyhomocamphoric acid, laotone CKOFI'S), 'r., 1219 ; P., 1900, STROSG), P., 1900, 134.XER), P., 1900, 46. of. See Homocamphanic acid. SUBJECTS. 1353 Hydroxylamine, spectrum of (HAKI'LEY and DOBBIE), T., 321 ; P., 1900,14. electrolysis of (SZARVASY), T., 608 ; P., 1900, 3. action of, on ethyl plieiiylpropiolate (RUHEMASX and STAPLETUS), T., 240 ; P., 1900, 11. hydrochloride,. gradual decomposition of, when impure (DIVERS and HAGA), T., 978 ; P., 1900, 147. 1 -Hy drox y laminocamphane (B- boriLy1- 1'. , 1900, 14. Hydroxymethylquinoxaline (RuILE- MASS and STAPLETUX), T., 249 ; P., 1900, 12. 2-Hydroxyisonicotinic acid, 6-chloro-, aiid &amino- (SELL a i d DoowoN), 'l'. , 236 ; P., 1900, 9. o-Hydroxyphenoxyacetic acid.See Catecholacetic acid. /ri-Hydrox y phenox yace tic acid ( tcso 1'- ~ ~ ~ L O Z C L C C ~ ~ C acid), and its silver salt and aiiilidc (CARIXR and LAWILESCE), T., 1222 ; l'., 1900, 152. p-Hydroxyphenoxyacetic acid ( p i 7 d - ncclic m i d ) and its aniline salt and anilide (CAxmit and L.IWHENCE), T., 1222 ; P., 1900, 152. a-Hydroxypropionic acid. See Lactic acid. 2-Hydroxypyridine, 3:4.5:6-tetmchloro- (SELL and D o o ~ w s ) , T., 772. Hydroxypyrimidinecarboxylic acid, amino-, ethyl ester of (RUHENANN awl SI'APLETOA), T., 808 ; P., 1900, 122. Hypobromous acid, action of, on aiiilides (CiIa.rr.-rwAY ancl OIXON), T., 789, 797; P., 1900, 102, 112; (AKMWROXG), T . , 1047 ; P., 1900, 160. action of, 011 tliacetyl-?,t-plienylene- dimiine (MOI:GAX), T., 1203 ; l'., 1900, 170.Hypochlorous acid, actioii of, og nnilides ( C H A ~ ~ . \ W A Y and O i : . r u s ) , T., 131, 789, 797 ; P., 1899, 232; P., 1900, 102, 112; (ClIATrAWAY, OmoN, ancl HURTLEI.), T . , 800 ; P., 1900, 125 ; (ARYSTI{OSG), T., 1047 ; P., 1900, 160. action of, on diacetyl- and dibenzoyl- nt-phenylenediamine ( MOILGAS), T., 1203 ; l',, 1900, 170. ~~,lJdl.OX!J~Ct?~Li?lC) (FORSTEI:), T., 255 ; I. Imidoaulphites (DIVEI.S and OGAWA), P., 1900, 113. 4 2 21354 INDEX OF SUBJECTS. Indene, new syntheses of (KIPPISG an( HALL), T., 467 ; P., 19q0, 54. Induline dyes, electrolytic preptiratio1 of (SZARVASY), T., 207 ; P., 1899 194. Invertase, presence of, in some plant! of the Gramineze (~'SULLIVAN), T. 691 ; P., 1900, 61. Iodates and hypoiodites, cstiinatioii o (0~1'0s and BLACKM.~~), T., 830 I'., 1900, 103.Iodine atom, confignration of the KIP^> ING arid PETERS), P., 1900, 62. action of, on alkalis (TAYLOIL), T., 725 ; P., 1900, 70. 1Jehaviour of, with mercuric oxide (ORTOS and BLACKMAN), T., 835 ; P., 1900, 104. Iodine monochloridc, reaction of, n ith alkalis (ORTON and BLACKMAN), T., 830 ; P., 1900, 103. J. Jaborandi leaves, alkaloids of (JOW ~ m ) , Jaborine (JOWETT), T., 473 ; P., 1900, 50. Japaconine, preparation, composition, properties and salts of (DUNSTAN and READ), T., 58; P., 1899, 207. Japaconitine, extraction, coniposition, properties, hydrolysis, salts, and physiological action of ( DUNSTAN and READ), T., 47 ; P., 1899, 206. Japbenzaconine, ireparation, propertics, hydrolysis and salts of (DUESTAX and READ), T., 65; P., 1899, 207.T., 478 ; P., 1900, 49. L. Lactic acid (i-etibylidenclnctic acid, a- hydroxypropionic wid), oxidation of, in presence of ferrous salts (FENTON and JONES), T., 71; P., 1899, 224. Lactone, C10H1602, from the bromination of homocamphoric acid (LAPWORTH), T., 1063 ; P., 1900, 128. Laevulomannan from Phytelephns macro- ccwpa, and its dibenzoyl derivativc (BAKER and POPE), T., 696; P., 1900, 72. isoLauronolic acid (LEES and PERKIX), and its stercoisomeride, reactions and structure of (WALKER and Coa- MACK), T., 374 ; l?., 1900, 58. Lead chlorate, decomposition of (SODEAU), Liquefaction of a ga.; hy " self-cooling" P., 1900,18. T., 717 ; P., 1900, 88. (NEWTH), P., 1900, 87. Luteolin, constitution and cliniethyl ether of (PERKIN), P., 1899, 242.and its methyl ethers, decomposition products and salts of (PERKIN and HORSPALL), T., 1314; P., 1900, 181. M. Magnesium potassium and magnesium rnbidium snlphates (MALLET), T., 219, 223 ; P., 1899, 227. Magnetic rotation. See Photochemistry. Malic acid, oxidation of, in presence 0 1 ferrous salts (FENTON and JONES), T., 75 ; P., 1899, 224. Malonamide, action of nitrosyl chloride on, and of hydroxylamine on its ciibromo-derivative ( WIIITELEY), T., 1040 ; P., 1900, 145. Malonic acid, ethyl ester, condensatioii of, with formaldehyde (BOTTOM- LEY and PERKIN), T., 294 ; P., coiidensation of the sodium deriva- tive of, with ethyl aa'-dibromo- BB-dirnethylglutarate ( PERKIN, THORIJE, and WALKER), P., 1900, 149. action of dry silver oxide and ethyl iodide on (LANDER), T., 743 ; P., 1900, 6, 90.Manganese potassium sulphate (h'iALLET), T., 221 ; P., 1899, 227. Mannogalactan from Strychnospolatorim and its dibenzoyl derivative (BAKER and POPE), T., 696; P., 1900, 72. Manures estimation of potash in (ADIE and WOOD), T., 1079 ; P., 1900, 17. Memorial lectures : Victor Meyer (THORPE), T., 169 ; P., 1900, 33 ; Bunsen (ROSCOE), T., 513 ; P., 1900, 84 ; Friedel (CILAFTS), T., 993 ; Nil- son (PETTERSSON), T., 1277. !-Menthol, action of dry silver oxide and ethyl iodide on (LANDER), T., 731 ; P., 1900, 6. Mercury, vapour deiisity of (BAKER), T., 648 ; P., 1900, 68. Mercuric iodide, action of, on alkyl sulphides (SMILES), T., 163; P., 1899, 240. oxide, action of iodine on (ORTON and BLACKMAN), T., 835 ; P., 1900, 104. lderouroua chloride, vapour density of dried (BAKER), T., 646 ; P., 1900, 68.iodide (RAY), P,, 1899, 239. nitrite, action of, 011 ethyl iodide (HAY), l',, 1899, 239. 1900,16.INDEX OF SUBJECTS. 1355 Heeitylene (1 :3 : 5 - t r i ? ~ e t l ~ y Z b e n ~ ~ ~ ~ ~ ) , re- fraction and magnetic rotation of (PERKIN), T., 267; P., 1899, 237. Mesityl oxide ( m t h g l isobziiexgl ketoize ; iso;uropylicEesieacetone), condensation of, with ethyl sodiometli~lmnIoiiate (CROSSLEY), P., 1900, 90. Mesoxamide, oxiine of, and its salts ant1 ncetyl and ethyl derivatives, and thc action of nitrous acid on (WIII ~EIXY), T., 1040 ; P., 1900, 145. Metahemipinic acid (GII~BO~Y and PERKIS, and YATES ; J’ERRIS and YATEY), P., 1900, 107. Mqrtal-ammonia compounds, natnro of, in aqueous solution ( DAWSOS and ~IIcCEAE), T., 1239; P., 1900, l i 2 .Methane, nitro-, action of alkalis and ainnionia on (DUNSTAS and Gor.1,~- ISG), l’., 1262 ; P., 1900, 1’74. Methazonic acid, preparation, constitrr- tioii and reactions of (DEWTAX and GOULDIKG), T., 1264; P., 1900, 174. p-Methoxybenzylidene-2-naphthylamine, l-bromo- and l-chloro-, ancl their hydrocyanides (MORGAX), T., 1216 P -0- Met hox yphenoxy cinnamic acid and its ethyl ester (RvnExrass and STAPLE~OS), T., 1180; P.. 1900, 168. o-Methoxyphenoxystyrene (RUIIEMAYN and STAPLETON), T., 1181; P., 1900, 168. Methylacrylic aoids, a- and 8-, ethyl esters, condensation of, with etllyl sodiocyanoace tatc (110 WLES, Tito ILIT, UDALI,, and NEALE), T., 0 4 i ; P., 1900, 116. Methylamine, spectrum of ( HARTLEY and DOEBIE), T., 320 : P., 1900, 14.action of iodine chloride on (0 I:TOS and BLACKJIAS), T., 833 ; p., 1900, 103. aal-Methylisoamylsuccinic acid and its oxidation products (Lawmwc), 1’. , 1900, 156. aal-Methylisoamylsuccinic acids, cis- antl trrins-, dissociation constants of (130s~ and ~ITASKLISG), T., 1301 ; I’., 1900, 154. Methyl isobutenyl ketone. See X c s i t j l oxide. a-Me thyl- a,:isobu tylglu taric acid, a i d its oxidation, and al-cyano-deiivative (TAWRESCE), 1’. , 1900, 155. Methylisobutylglutaric acids, cis- ant1 trans-, and their anhydrides and niiilic acids (LATVRRSCE), P,, 1900, 13-k. a-Me thyl-al-isobutylpropanetricarboxyl- ic acid, and its ethyl ester (LAJY- I~ESCE), P., 1900, 154. 1’ERI<IS), P., 1899, 241 ; (GILEO~Y, l’., 1900, 171, aa,-Methylisobutylsuccinic acids,cis- and tmizs-, preparation antl dissociation constants of (BOSE and SPFLISKLISG), T., 1303 ; P., 1900, 184.Methylbutyric acid. See Valcric acid. Methylcarboxyresorcylac~tic acid (GIL- 106. Methylcyanoacetic acid, ethyl ester, constitution of the kodinm derivative Methyldiethylsulphine iodide mercnric iodide (SJrILES), T., 162; P., 1899, 240. Methylenebis- 1 -bromo- and - l-chloro-2- naphthylamine (MORGAK), T., 814 ; l’., 1900, 131. pit- and 13 Methylenemalonic acids, ethyl esters, preparation ancl distillation of (BonoMLET and PERKIS), T., 306 ; 1’. , 1900, 16. Methylenemalonic and $1-Methylene- malonic acids, ethyl esters, hydrolysis of ( R O ~ ~ T O ~ , E Y a i d PERI~IS), T., 306 ; P., 1900, 16. Methyl ethyl sulphicle-mercuric iodide (SMILES), T., 164 ; P., 1899, 240.Methylethyldesylsulphine bromide ancl picrate (SMILES), T., 1175 ; P., 1900, 168. rl- and I-Methylethylphenacylsulphine tl-bromocamphorsnlphonates and picrates (SIIILES), T., 1175 ; I?., 1900, 168. i-Methyle thylphenacylsulphine bromide and picrate (SMILES), T., 1175 ; I’., 1900, 168. tZ-Methyle thyl-11-propyl tin iodide (POPE and PEACIIEY), I?., 1900, 42. d- bromocamphorsulphoilate ( Pom and PE.UXET), P., 1900, 116. Methylethylthetine, attempts to resolve (SJIILES), T., 168 ; P., 1899, 240. resolution of, into activc components (POPE and PI:ACHEP), T., 1072; P., d-Methylethylthetine platinichloride, d-camphorsulphonatc, and d-bromo- cainpliorsulplionate (POPE aiitl Methylglutaric acids, a- and B- (bzcfmc- t l i c c t , ~ ! ~ ~ y I i c ncitls) (~IOJVLES, THORI’E, and UDAT.~.), T., 947 ; P., 1900, 116.Me thylglyoxal-p- ethoxyphenyl- hydraz- oxime, -0sazone and -0sotetrazone ( A i . n ~ s ) , l’., 1899, ’230. Kethylglyoxal-methylphenylphenyl- osazone and -salicylic acid osazone (ATTEA-), P., 1899, 231. Kethyuapaconitine and its anrichloride (DUNSTAN and READ), T., 54 ; P., 1899, 207. CODY, l’EKKIS, alld Y-\’rlC>), P., 1900, of (THORPE), T., 923 ; P., 1900, 113. 1900, 12. PEACIIEP): rr., i o n ; P., 1900, 12.1356 INDEX OF SUBJECTS. lethylmalonic acid (isosuccinic acid ; ethanedicarbox y Zic mid), sodium deriva- tive of the ethyl ester, condensation of, with mesityl oxide (CI:OSSLET), P., Methylisopilocarpine and its salts (JOWETT), T., 8 5 3 ; P., 1900, 125. Cymene. a-Methyl-8-isopropylglutaric acids ( hepf nncclicnrboxy 1 ic ncids) ( H o WLES, THORPE, and UDALL), T., 946; l’., 1900, 115.aal-Methylpropylsuccinic acids, cis- and tmns-, preparation and dissocia- tion constants of (BOXE and SPRAKK- LING), T., 1302; P., 1900, 184. Methylresorcinolacetic acid (GILBODY, PERKIN, a:id YATE~), P., 1900, 106. Mixtures, refraction of (Pmi;rx), T., 280 ; P., 1899, 237. Morphide, chloro-, and bromo-, and their hydrochlorides and liydrobroinides (SCHEPVER and LEES), T., 1024 ; P., 1900, 143. isoMorphine and its hydrochloride, hydro- bromide and nietliiodide (SCl1RYvEI: and LEES), T., 1024 ; P., 1900, 143. methiodide, action of silver sulphate and barium hydroxideon ( SCIIRTVER and LEES), T., 1024 ; P., 1900, 143. Mncic acid, oxidation of, in presence of ferrous salts (FENTON and JOSES), T., 76 ; P., 1899, 224.@jTicn Gale, constituents of (PERKIN), T., 429 ; P., 1900, 45. Myricetin from various tannin matters (PERKIN), T., 423 ; I?., 1900, 45. 1900, 90. 1:4-lKe thylisopropylbenzene. See N. Naphthalene, vapour pressure of (ALLEN), T., 400 ; P., 1899, 122. 8 - Nsphthalenecarboxy lic acid, e thy1 ester, chloroimide of (STIEGLIW and &Naphthol derivatives, ctherification of (DAVIS), T., 3 3 ; P., 1899, 210. Naphthols, a- and P-, condensation of, with ethyl phenylprolJiolate (BUTIE- MANS and BEDDOW), T., 9s-1 ; P., 1900, 123. 8-Naphthoxycinnamic acids, a- and B- (RUIIEMAKX and ]3Enno\V), T., 984 ; 8-Naphthyl methyl, ethyl, and propyl ethers and their halogen derivatives (DAYIS), T., 36 ; P., 1899, 210. SLOSSON), P., 1900, 2.l’., 1900, 123. B-Naphthylamine derivatives, action of aromatic aldehydes on (MORGAN), T., 1210 ; P., 1900, 171. Naphthylamines, action of formaldehyde on (MORGAR), T., 814; P., 1900, 131. Nascent state, influence of, on the cornhination of oxygen and carbon monoxide (RUSSELL), T., 361 ; I’., 1900, 42. Neobornylamine, separation of, from hornylamine, rotatory power of, and action of ethyl oxalate on (FORSTEP. and HART-SMITH), T. , 1152 ; P., 1900, 166. Nickel sulphate, combination of, with ammonia in aqueous solution (DAw- SOX and I\~cCR.ZE), T., 1247 ; P., 1900, 173. potassium sulphate (HALLET), T., 221 ; P., 1899, 227. isoNicotinic acid (4-~z~l’idil~ecnr602z~lic mid), 2:G-diiodo- (SELL and D0o.r- sos), T., 235 ; l’., 1900, 9. Nitrification, recent researches on (WAI~ISGTOS), P., 1900, 65.Nitritohydroximidosulphates (DII-ERS and HAGA), T., 432 ; P., 1900, 54. Nitrogen, atomic weight of (DEAK), T., 117 ; P., 1899, 213. quinquevaleiit, isomeric partially racemic salts containing (KIPPINO), T., 861 ; P., 1900, 51. specific gravity of, a t its boiling point (DRUGMAX and RAMSAY), T., 1228 ; Nitrogen bromides and chlorides, sub- stituted (ARMSTROSG), T., 1047 ; 1’. ,1900,160 ; (STIEGLITZ and Srm- SON), I?., 1900, 2; discussion, l’., 2. method of transforming ( CHATT- AWAY and ORTOS), T., 796. from 0- and pacetotoluidides (CIIATTAWAY and OETOS), T., 789 ; I?., 1900, 102. ortho-substituted, and their trans- formation (CHATTAWAY and ORTON), T., 797 ; P., 1900, 112. Nitrogen chlorides, substitnted (CHATT- AIVAY and OILTOS), T., 134 ; P., 1899, 232.from 5,1-chloroacetanilide (CIIATT- A W ~ Y , OI:TOS, and HURTLEY), ‘l’., 800 ; P., 1900, 125. Nitrous acid, sulphonation of, by sulph- urous acid (DIVERS and HAGA), T., 688 ; I?., 1900, 70. Nitrites, interaction between snlphites an(l (DI\-Ei:s and HAG.\), T., 673 ; Nitro-group, elimination of a, during tliazotisatioii ( MELDOTA and WECHS- LICI:), ‘l’., l l i 2 ; l’., 1900, 167. P., 1900, 172. I’., 1900, 70.INDEX OF SURJECTS. 1357 0. Obituary notices :- Peter Waage, T., 591. William Harkness, T., 592. J. F. Hodges, T., 593. William hiarcet, T., 594. George Henry Ogston, T., 594. ltobert Oxland, T., 595. llichard ‘l’ayler Plimpton, T., 595. Henry Charles Repoltls, T., 596. Edward C. Cortis Stanford, T., 597. Sidney Augustus Sworn, T., 598.Willhm Thorp, T., 599. Johnnn I<. F. Ferdinand Tieniann, T., David Watson, T., 603. n-Octane, vapour pressnres, specific volumes, arid critical constants of (J’ouKG), T., 1145 ; P., 1900, 166. Octane (ciiisobzLtyZ), preparation, vapoiir pressures, specific volumes, and critical constants of (YOUKG and FOWEY), l’., 1126 ; P., 1900, 165. Octanedicarboxylic acids. See :- Dipropylsuccinic acids. I’ropylisopropylsuccinic acids. Oleic acid, action of dilnte nitric acid 011 (EDMED), P., 1899, 190. Orcinoltricarboxylic acid, methyl and ethyl esters, formation, constitution and nitrationof (Doo~sos), T., 1195 ; nitro-, hydrolysis of the methyl ester, and reduction of the methyl and ethyl esters of (DOOTSON), T., 1199 ; P., 1900, 170. Orientation, influence of various groups Osones, formation and isolation of (MORRELL and CiioFrs), T., 1219; P., 1900, 171.Oxalacetic acid, preparation, properties and reactions of (FENTOS and JOXES), T., i 7 ; l’., 1899, 224. Oxalic acid, formation of, from dehydro- lioniocamphoric acid (LAPWOIWH), T., 1070, ethyl ester, condensation of, with ethyl crotonate (LAPWORTH), P., 1900, 132. y-Oxalocrotonic acid, ethyl ester (LAP- isoOxazoles, formation of ( D r s s ~ a s and GOULDISG), T., 1266 ; P., 1900, l i 4 . Oximinopropionic acid, hydroxamic acid of (WHITELRP), T., 1040 ; p., 1900, 145. Oxyazo-compounds, broniinatiou of 600. P., 1900, 170. 011 (LAPWOKTII), P., 1900, 108. WORYH). P., 1900, 132. (ARMSTROA-G and IRHEl?\VOOl)), P., 1900,158. o-Oxycarbanil and its ethers, absorption spectra of (HARTLEY, DORBIE, and P.kLIATSEAS), T., 839 ; P., 1900, 1 :30.Oxygen, evolution of, from chlorates (SODE.W), T., 137, 717; Y., 1899, 157; 1900, 88. specific gravity of, a t its boiling point (DHUGMAN and RAMSAY), T., 1228 ; P., 1900, 172. influence of the nascent state on the combination of carbon monoxide alld (Rcs-ELL), T., 361; P., 1900, 42. combination of, with sulphnr dioxide (RUSSELL and SMITH), q’., 340 ; P., 1900, 41. P. Paraffins, nitro-, action of alkalis on, and rcdnction of, and of their salts (DUSSTAS and GOULDISG), T., 1266 ; l’., 1900, 1’75. Pentamethylene (cyclopentnne) deriva- tives, new series of (PERKIN, THOEPE, and \VALKEK), P., 1900, 149. Pentamethylenehexacarboxylic acid (BwrTomEY and ~’EI:I;Ix), T., 294 ; P., 1900, 16. Pentamethylene- 1:2:4- tricarboxylic acids, cis- and trans-, synthesis of (Bo,rrow.m and PERKIN), T., 296 ; P., 1900, 16.Pentanehexacarboxylic acid, ethyl ester ( B o r m m E Y and I’EKKIN), T., 294 ; P., 1900, 16. Pentanetricarboxylic acid and its decomposition (Bori OXLEY and Phenacetyltartaric acid, diethyl ester, rotation of (MCCRAE and PATTERSON), T., 1096 ; P., 1900, 161. Phenol, dissociation constant Of (WALKER and CORMACK), T., 18 ; I’., 1899, 208. condensation of, with ethyl phenyl- propiolate (XUHEMASS and BED- DOW), T., 984; P., 1900, 123. Phenols, action of, on ethyl acetylenedi- carboxylate (RUHE~IANS arid BED- IJOW), ‘l’., 1119 ; P., 1900, 165. action of, on ethyl pheiiylpropiolate (REHEMASS and BEDDOW), T., 954, 1119 ; P., 1900, 123, 165. Phenolazobenzeneazophenol and its diacetyl derivative ( MELDOLA arid WILLIAMS), P., 1899, 196.B-Phenoxycinnamic acid and its ethyl ester (EUHEhlANS and BEDDOW), T., ~ ’ E I ~ K I S ) , rr., 294 ; P., 1900, 16. thio-. See Phenyl niercaptan. 954 ; I]., 1900, 123.13523 INDEX OF SUBJECTS. 8.Phenoxycinnamic acid, ethyl ester? action of snlphuric acid on (1tumMtlm a11d STAPLETOK), T., 1183; P., 1900, 168. Phenoxyfumario acid and its ethyl ester and aniide (RUHEMANN a d BEDDOW), T., 1119; P., 1900, 165. actionof sulphuric acid on (RUHEMAXX and STAPLETON), T., 1180 ; l'., 1900, 168. Phenoxymaleic acid (RUHEMASK and BEDDOW), T., 1119 ; P., 1900, 165. Phenoxystyrene (RUHEMASS and BED- now), T., 984; P., 1900, 123. Phenyl acetyl nitrogen chlorides, chloro-derivatives of (acetyllchdoro- nininochlorobcn~enes) (CITA'I"I.AIV'AT, ORTON, and HUIITLEY), T., 800 ; P., 1900, 125.Phenyl acetyl nitrogen chlorides and bromides (neetyl-ch lwo- and -bronz o- antinobciiwtes) and their transform- ation (CHATTAWAY and Omox), T., 798 ; P., 1900, 112. Phenyl acyl nitro en chlorides, p-nioiio- anci 2:4:6-tTi-cfloro- (CHATTA\~~AP and Omos), T., 134 ; P., 1899, 232. Phenyl acyl nitrogen chlorides and bromides, and their behavionr to alkalis, potassium cyanide, and zinc ethyl (STIEGLITZ and SLOSSOS), 1'. , 1900, 1 ; discussion, P., 2. Phenylacetylchloramine, discrepancies in the description of its properties, and explaiiation of the riianner i t undeygoes isomeric change (ARM- GTROSG), T., 1047; €'., 1900, 160, 8-Phenylcinnamic acid, thio-, and its ethyl eater (RUHEMAPTN and STAPLE- TON), T., 1181 ; P., 1900, 168.2-Phenyl-4 5 -cis-diphenyl-4 5 - dihydro - imidazole. See Aniarine. 2-Phenyl-4: 6 -trrrns-diphenyl-4 5 4 - hydroimidazole, See isoAmarine. mPhenylenediacety1-dichloro- and -di- bromo-amine (MORGAN), T., 1203 ; P., 1900, 170. m-Phenylenediamie, acyl derivatives, action of hypochlorous and hypo- bromous acids on (MORGAN), T., 1203 ; P., 1900, 170. l-moxo- and1 :5-di-chloro- and -bromo-, and their dibenzoyl and diacetyl derivatives (MORGAN), T., 1202 ; P., 1900, 170. o-Phenylenedioxydiacetic acid and its ethyl ester, nietallic and aniline salts, amide, and anilide (CARTER and LAW- EENCE), T., 1222; P., 1900, 152. m-Phenylenedioxydiacetic acid and its ethyl ester, metallic and aniline salts, amiilc, and anilicle and 2:4:6-trinitro- derivii tive (CAIvrER and Ilaw ILEXTCE), T., 1222 ; P., 1900, 152.p-Phenylenedioxydiacetic acid and its ethyl ester, metallic salts and anilide P., 1900, 152. ( C h I x E R and LAWKESCE), T., 1222 ; Phenylethane, See Etliylbenzene. Phenylfumaric acid, tliio-, and its ethyl ester (RTJHEMAXN and STAPLETOS), T., 1183 ; P., 1900, 168. C- Phenylhy droxy tr iazole, and st-ni tro- and acetyl derivatives (YOUNG and WITHAM), T., 224 ; P., 1900, 5. Phenyl mercaptan, condensation of, with ethyl acetylenedicarboxylate and with ethyl phenylp~opiolate ( RUIIE- nrAxN and STA~'I~ETOK), T., 1181 ; P., 1900, 168. 5-Phenylisooxazolone (RUHEMANN and Phenylpropiolic acid, ethyl ester, action of benzamidine, of hyclroxylamine, of thiocarbamide and of gnanidinc 011 ( R r HENANN and STAPLETOS), T., 239 ; P., 1900, 11.condeiisation of, with guaiacol ant1 mitli plienyl mercaptan (Rcrm- 1181 ; P., 1900, 168. action of phenols on (RUHEMAKK Phenylstyrene, tliio- ( I~YIIEMAKN and STAI~IXIUX), T., 1182 ; P., 1900, 168. Phenyl-p-tolyliodonium hydroxide, iodide, and I~roniocanipl~oisul~,I~o~iate (KIPPIXG and PETEILS), P., 1900, 62. Phloroglucinol from the fusion with nl- kali of colouiing matters from tannins (PEM~Ix), T., 424 ; P., 1000, 45. Rotation of d- and Z-isoamatrine and their acid tartrates (SSAYE), T., iS4 ; P., 1900, 118. of bornylsmine salts, bornyloxam- ide, diborngloxamide, and neo- boriiylamine (For:sr~R and HAXT- S h f m r ) , T., 1162 ; l'., 1900, 166. of cainphoroxinieacctic acid and its s d t s (FomTEI: and HART-SMITH), of hydrindaniine bromo- and chloro- cainp1iorsnlI)honates and cis- r-camphanates (I<IrI'IsG), Y'., 884 ; P., 1900, 51. of n~ethyletliylplicnacyls~il~~hiiie cE-bromocainl,horsulphouates and picrates (SMILES), T., 1177 ; P., 1900, 16s. STAPLETON), T., 247 ; P., 1900, 12. MANX nlld STAPLETOS), T., nlld BEDDOW), T., 984, 1119; P., 1900, 123, 165. PHOTOCIIEMISl'ET :- T . , 1154 ; P., 1900, 166.INDEX OF SUB,JECTS. 1359 ~HOTOCHE~IISTRT :- Rotation of cl-iiietliylethyltlietine pla- tinichloride, d-campliorsulplion- ate, and rl-broniocamphorsulplii~ii- ate (POPE and PE,~CIIEY), T., 1072 ; P., 1900, 12. of ~-iiitrocaml,haiie (For:sTEr,), T., 258 ; P., 1900, 13. of pilocarpinc, isopilocarpine :Lnd pilocarlkliiie and their salts of‘ acetyl and phenacetyl derivatives of dietliyl tl-tartrate (BICCRAE and I’z\rrmriso~), T., 1096 ; P., 1900, 161.Magnetic rotation of the 1)enzenoid hydrocarbons ( PEI:I;JS), 1’. , 267 ; P., 1899, 237. of liesametliylc~ic and wzono- and cli- cliloroliexniiietliyle~~e (PRRJ;IN), T., 372 ; I)., 1900, 44. Refraction of mistnres (PERKIN), T., 280 ; P., 1899, 237. of the henzenoid hydrocarbons ( ~ ’ ~ ~ I ~ I ~ I K ) , T., 267 ; l’., 1899, 237. of hexamethylene and wzono. and rli-chloroliexaniethylcne( PEI:KI s), T., 3i2 ; l’., 1900, 44. Spectrographic method, value of, in tautoinelism (I-Iarirr,s~ and Doe- BIE), T., 498 ; P., 1900, 57. Spectra of ammonia, metliylaniine, hydroxylaniiiic, acetsldoxinie ancl acetoxime (HAIWLIW and Dor3- of benz-anti- and -syii-aldoximes (HAJ:TI,EY and D o n e i ~ ) , T., 509 ; P., 1900, 58.of 2:5dirnethylpyrazine (HAr,TLET and DOBBIE), T . , 846 ; P., 1900, 129. of ethyl d ibenzoylsuccina t c s (IIARTI,EY slid DOBBIE), T., 498 ; ME), rr., 318 ; P., 1900, 14. P., 1900, 57. of liexamethylene aiid tetraliydro- lmizene (HAIW,EY and DOBME), T., 546 ; l’., 1900, 129. of o-oxycarbanil and its ethcrs (I I A KT LEY, Do B I< I s, and PA LI AT - of chloropliyll and its colouring ancl SEAS), rr., 8x1 ; P., 1900, 130. ScrrYxcr;), l., lOS0 ; P., 1900, in a t t c rs 148. of broinoli~matoporl,liyriii and bromopliSlloport)liyl.in ( RIn~cir- I,EWSICI and Scrrvscr;), T., 1093. Spectrometer scale reader, improved Phylloporphyrin, action of broniine on (?!A I:C I I I, EIVS I; I ( P E n I i r s ) , T., 201. (h1AI:CHLE\VSI<I aiid SCHYSCK), T., 1091 ; P., 1900, 149.Physiological action of japacoiiitine (DUSSTAN and READ), T., 53. of pilocarpine, isopilocarpine, and pilocarpicliiie (JowETr), T., 497. Picric acid (2: 4: G-triliit rophenol), oxida- tion of, in presence of ferrous salts (Fes~ox aiicl JOSES), T., 76; Pa, 1899, 22-1. Pilocarpidine, constitution, properties 2 n d salts of (JOWETT), T., 473; I?., 1900, 50. Pilocarpine and isopilocarpine, con- stitution, properties, reactions, salts aiid physiological action of (JowET’I‘), T., 473 ; P., 1900, 49. Pilocarpine, constitution of (JOWET r), T., 494, 851 ; P., 1900, 50, 123. icoPilocarpine, oxidation of, with permxnganate, and reactions of, with soda lime, fwed canstic potash, and methyl iodide (JOWETT), T., 551 ; P., 1900, 123. Piluvic acid, C8Hl4O6 (JOWETT), T., 855.Potassium carbonate, solubility of solotions of, in aqueous ammonia (NEWTII), T., 775 ; P., 1900, 87. clilorate, decomposition products of (SO~EAU), T., 142 ; P., 1899, 157. nitrite, decomposition of, by alcoholic sulphur dioxiile (DIVERS and HAG’\), T., 437, 687. and nitrate, mixed, solubility of ( D I Y I ~ s ) , P., 1900, 40. Dipotassium sodium cobaltinitritc (ADIE and WOOI)), T., 1076 ; F., Potassium sulphates, compounds of, with inetallic sulpliates ( K m x r ) , T., 216 ; P., 1899, 227. nitritoliydrosimidosulpliates (DIVERS aiid HAGA), T., 432 : P., 1900, 54. snlpliazotised salts, Freniy’s, identifica- tion and constitution of (DIVERS liydrosulpliides, snlphicles, and poly- sulphidcs (I~LOSAJI), T., 753 ; p., 1899, 146. Potassium organic compounds :- fcrrocyaiiide, clecompositioii of, by sulphuric acid ( ADIE and BROWS- IKG), T., 150 ; P., 1899, 226.Potassium, new method of cstiniatiirg (ADIE and WOOD), T., 1076 ; I’., Propane, nitro-, secondary, action of alkalis on ( D u s s ~ ~ w aiid GOI~I~IILNG), T., 1266 ; P., 1900, 174, Propanedicarboxylic acid. See Glutaric acid. cgcZoPropanedicarboxylic acid. See Trimetliylenedicarboxylic acid. 1900, 17. nncl HAGA), rr., 440 ; P., 1900, 55. 1900, 17.1360 INDEX OF SUBJECTS. n-Propyl isocyanide (WADE), P., 1900 157. B-isoPropylacrylic acid, See Hexenoic acid. Propylbenzenes, n- and iso-, refractioi and magnetic rotation of (PERIIIN)! T., 267 ; P., 1899, 237. a-isoPropylbutyric acid. See Heptoic acid. 15-isoPropylglntaric acid (hexai~cdicarb. oxylic acid) (HOWLES, THORPE, and UDALL), T., 942 ; P., 1900, 115.isoPropylideneacetone. See Mesityl oxide. aa,-Propylisopropylsuccinic acids, cis- and trans- (octunedicarboxglic acids), preparation and properties of (BONE and SPBASKLING), T., 654 ; P., 1900, 71. Protocatechnic acid (3:4-dihgdrox?/- benzoic acid), from the fusion with alkalis of certain colouring matters from tannins ( ~ I S R K I S ) , T., 424 ; P., 1900, 45. Pyridine, chlorine derivatives of, con- stitution of (SELL and DOOTSOX), T., 1,233 ; P., 1899, 205 ; 1900, 9. chloroamino-derivatives of, constitu- tion of (SELL and DOOTSOK), T., 4, 233, 771 ; P., 1899, 206 ; 1900, 9 , 111. Pyridine-4-carboxylic acid. See iso- Nicotinic acid. Pyrojapaconine, reparation, properties and aurichloriA of (DUNSTAN and READ), T., 6 2 ; P., 1899, 207.Pyrojapaconitine ,preparation, properties, hydrolysis, and salts of ( DT;XSTAN and READ), T., 60 ; P., 1899, 207. Pyromncic acid, oxidation of, in presence of ferrous salts (FENTON and JONES), T., 7 6 ; P., 1899, 224. a-Pyrone-a‘-carboxylic acid (LAP- n-Pyrotartaric acid. See Glutaric acid. Pyruvamide, oxime of (WHITELEY), T., WORTH), P., 1900, 132. 1 0 4 5 ; P., 1900, 145. Q. Quercetin from various tannin matters (PERKIN), T., 4 2 3 ; P., 1900, 45. Quinolacetic acid. See p-Hyclroxy- phenoxyacetic acid. Quinoxalidoneacetic acid, ethyl ester (HZ;HEMANN and STAPLETOS), T., 243 ; P., 1900, 12. R. Racemisation occurring during the form- ation of henzylidene, benzoyl, and acetyl derivatives of d-ac-tetra- hydro-&naplithylamine (POPE and HARVEY), P., 1900, 74.of optically active tin compounds (POPE and PEACIIEY), P., 1900,116. Rain-water collected. a t Cirencester, amount of chlorine in (KIXCH), T., 1271 ; P., 1900, 183. Refraction. See Photochemistry. Resorcinolacetic acid. See m-Hy droxy- phenoxyacetic acid. Rhamnose, oxidation of, by hydrogen peroxide (Moncrc~r, and CROFTS), T., 1220 ; P., 1900, 171. Rhus Mctopizsnz, constituents of (PERKIN), T., 427 ; P., 1900, 45. Robixia Pssrcdncacia, constituents of (PERKIN), T., 4 3 0 ; P., 1900, 4 5 . Rubidium magnesium sulphate (MAT,- LET), T., 223 ; P., 1899, 227. S. Saccharic acid, oxidation of, in presencc of ferrous salts (FENTON and JOXES), T., 7 6 ; P., 1899, 224. Saccharose. See Sucrose. Salicylic acid, action of dry silver oxide and methyl iodide on (LASDER), T., 745 ; P., 1900, 6, 90.Salinigrin, new glucoside from willow bark (JOWETT), T., 707 ; P., 1900, 89. Saponification, the theory of (LEWIIO- WITSCH), P., 1899, 190. 3emicarbazone8, decomposition of (KtP- hydrolysis of (YOUNG and \vITHAM), 3ilico-phenylamide, diphenylimide, and -triphenylguanidine (REYNOLDS), T., 836 ; P., 1900, 133. Silver oxide, dry, and alkyl iodides, alkylation by means of (LANDER), T., 7 3 6 ; P., 1900, 6 , 90. iilver, estimation of, by Volhard’s method (ROSE), T., 232 ; P., 1900, 5 . iilver bullion, assay of (KOSE), ‘l’. , 232 ; iodium cobalt nitrite, and salt of, with yotassiuni (Anm and WOOJ)), T., 1076 ; P., 1900, 17. hydroximidosulphate, gradual de- composition of (DIVERS and HAGA), T., 978 ; P., 1900, 147. Iiydrosnlphides, sulphides and poIy- snlpliides (BLOXAM), T., 753 ; P., 1899, 146.PING), P., 1900, 6 3 . P., 1900, 7 3 . P., 1900, 5.INDEX OF SUBJECTS. I361 Sodium sulphite, decomposition of an ice-cold solution of, by carbon di- oxide (DIVERS and HAGA), T., 681. soils, estimation of potash in (ADIE and WOOD), T., 1079 ; P., 1900, 18. Solubility of potassinm carbonate solu- tion in aqueous ammonia, and r i c e z~ersd (NEWTH), T., 775 ; P., 1900, 87. of mixed potassium nitrite and nitrate (DIVERS), P., 1900, 40. Solutions, inorganic, partially miscible (NEWTH), T., 775 ; P., 1900, 87. Specific rotation. See Photochemistry. Spectrometer scale reader, improved Spectrum, See Photochemistry. 6‘-Styrenylhydroxytriazole and its acetyl derivatives (YOUNG and Substance, N,H,S,O,, and its salts, from the decomposition of ammonium aniidosulphite (DII’ERS), 1’., 1900, 104. C,H,Br,, from the action of bromine on caniphononic acid ( LAPWORrH and CloHl,06N,,. from a-dibromocamphor and riitrIc acid (LAPWORTH and C1;H,,O,, from the action of alcoholic potash on acid, ClgHlgOg (GILBODT, PRRIcIs, and YATES), I?., 1900, 107. C19H180,, from the action of phenyl- hydrazine on trimethylbrazilone (GILBODY, PERKIS, and YATES), P., 1900, 105. C,,H,,ON, from the action of formalde- hydc on ethyl-B-naphthylamine hydrochloride in alcoholic solution (MoRG.w), T., 819; P., 1900, 131. C,5H4202N2, from the action of benz- aldehyde on ethyl-B-naphthylamine (MOBGAS), T., 1210 ; P., 1900, 171. Substitution in phenols, inhibiting effect of etherification on (ARMSTROSG and LEWIS), P., 1900, 157.Succinic acid (~thaitedicccl.box~Zic ncid), dicyano-, ethyl ester (THORPE and YouSG), T., 937 ; P., 1900, 115. isoSuccinic acid. See Methylmalonic acid. Succinic acids, alkyl snbstituted, pre- paration and dissociation constants of (BOSE and SPRANKLIKG), T., 654, 1298; P., 1900, 71, 184. Sucrose (saccharosc, cane sqbgar), oxida- tion of, by hydrogen peroxide (MUI~I~ELI, and CROFTS), T., 1220 ; P., 1900, 1T1. (I’ERKIN), T., 291. ~VITIIAY), T., 230 ; P., 1900, 5. CIIAPMAK), T., 466; P., 1900, 57. CHAPMAN), T., 309 ; P., 1900, 4. Snlphazotised salt#, Fremy’s (DIVERS and HAGA), T., 440 ; P., 1900, 55. Sulphur, stereochemistry of (SMILES), T., 160, 1174; P., 1809, 240; 1900, 168; (POPE and PEACHEY), hydride. See Hydrogen sulphide.dioxide, combination of, with oxygen (RUSSELL and SMITH), T., 340 ; P., 1900, 41. action of dry ammonia on (DIVERS and OGAWA), T., 327; P., 1900, 38 ; (DIVERS), P., 1900, 104. estimation of (RUSSELL), T., 352 ; P., 1900, 41. Sulphuric acid, interaction of, with hydrogen peroxide (LOWRY and WEST), T., 950; P., 1900, 126. action of, on potassium ferrocyanide (ADIE and BROWNIXG), T., 150 ; P., 1899, 226. separation of, from vanadium (GOY- DEB), T., 1096. Sulphites and nitrites, interaction between (DIVERS and HAGA), T., 673 ; P., 1900, 70. Persulphuric acids ( LOWRY and WEST), T., 950; P., 1900, 126. Sulvanite from South Australia (GOY- DEK), T., 1094 ; P., 1900, 164. rr., 1072; P., 1900, 12. Sulphur acids :- T. Tannins of Arctosfaphylos Uva-ursi, Emntatoxylmt cawtpeckinia~cnz, Rhics i)letopizc?n, Af?friccc Gale, coriar ia Myrt~olicL, and Robinia Psezdacacia (PERKIK), T., 424 ; P., 1900, 45.d-Tartaric acid, diethyl ester, prepara- tion and rotation of acetyl and phenacetyl derivatives of (MCCRAE and PATTERSON), T., 1096; P., 1900, 161. Tartronic acid, oxidation of, in presence of ferrous salts (FENTON and JONES), T., 71 ; Y., 1899, 224. Tautomerism, spectrographic studies in ( HARTLEY and DOBBIE), T., 498 ; P., 1900, 57; (HARTLEY, DOBBIE, and PALIATSEAS), T., 839 ; P., 1900, 130. Temperature, See Thermochemistry. 2:2’-Tetrabenzyldiamino-l:l’-dinaphth- ylmethane (MORGAN), T., 814; P., 1900, 131. 2 2-Tetraethyldiamino- 1: l’dnaphthyl- methane (MORGAN), T., 814; P., 1900, 131. 1: 2:3:4Tetraethylbenzene, refraction and magnetic rotation of (PERKIN), T., 267 ; P., 1899, 237.1362 INDEX OF SUEJECTS.Tetrahydrobenzene. See cycloHexeiie. Te trah ydrof urfuran- 2 5 - dicarboxylic acid, its synthesis, hydrate and isom- eride (LEAN), T., 105 ; l’., 1899, 198. d-oc-Tetrahydro-B-naphthylamine, race- ivisntioii occurring during the forma- tion of benzylitlene, benzoyl, a n d ncetyl derivatives of (POPE aiicl HARVEY), l’., 1900, 74. Tetrahydroxyflavone. See Luteolin. Tetrahydro-xylic acid (T,EICS ancl YEBKIN), P., 1900, 20. 2:2’-Tetrame thyldiamino- 1: l’dinaphth- ylmethane and 1:l’-Tetramethyl- diaminodinaphthylmethane (Mo R- GAN), T., 823 ; P., 1900, 131. Tetramethylenedicarboxylic acid. See cycZoButanedicarboxylic acid. aa,k?B-Tetramethylglutaric acids (hcp tuncdicnrbozylic acids) ( TIIOIWE), T., 932 ; (TIIORPE aiid Yousa), T., 93G ; P., 1900, 114.Tetramethylhmmatoxylin, oxidation of (PEEKIN and YATES), P., 1900, lot. Tetramethylhaematoxylone, melting point of (GIIAODY and l’EI:KIs), P., 1899, 241. Tetramethylpyrone and its hydrate and salts (COLLIE and s,TF,ELII:), ‘l’., 961 ; P., 1900, 146. periodide (COLLIE and STEELE), T., 1114 ; P., 1900, 164. Temperature, influence of, on the specific rotation of niono- ancl di- acetyl- and -plieiiacetyl-tartrates (MCCRAE and PnTTEnsoN), T., 1106. Critical constants. See under Critical. Transition temperatures, determina- tion of (DAWSOS and WILLIAMS), l’., 1899, 210. Thermochemical data of alloys of copper and zinc (f.) (BAKER), P., 1899, 195. of ammonium cyanate (f. and t.) (WALKER and Woon), T., 27 j P., 1899, 209.Heat of solution of ammonium cyanate (WALKER and WOOD), T., 27 ; P., 1899, 209. Thetine dei,ivntivcs, resolution of (POPE and ~’EAC‘IIET), T., 1072 ; P., 1900, 12. Thiocarbamide, action of, on ethyl phenylpropiolate (1irlIEIIIANN am1 STAPrxroh’), T., 242 ; P.. 1900, 12. Tin compounds, asymmetric optically active (POPE and PEACHET), I)., 1900, 42, 116. Toluene, refraction and magnetic rotation of (PERKIS), T., 267 ; P., 1899, 237. THEltMOCIIEMISTRY :- Toluene, 2 :4:5-trichloro- (MORGAN), T., 1204. Tolyl acetyl nitrogen chlorides ant1 bromides, o- aiid p - (acetyl-chZoro- and 102. 24-Tolylenediamine, 5-chloro- and its ncetyl derivatives (MORGAX), T., 1204 ; P., 1900, 170. ~-~~~-Tolyloxycinnamic acid, aiid its ethyl ester (RUI1EsrAxN and BEDDOW), T., 1119 ; P., 1900, 165. B-Tolyloxycinnamic acids, o- and 2)-, ancl their ethyl esters (RuHesrass and EEDDOW), T., 984 ; P., 1900,123. Tolyloxyfumaric acids, o-, nt-, and $1-, and their ethyl esters (Rurmxr.\Ns and BEDDOW), T., 1124; P., 1900, 165. m-Tolyloxymaleic acid (RUHEMAXN and 13E,DDOW), T., 1125 ; P., 1900, 165. nt -To1 ylox y s t yrene (Ru HEN ANS and BEDDOW), T., 1119 ; P., 1900, 165. o- and p-Tolyloxystyrenes (RUHEMANN and BEDDOW), T., 984 ; P., 1900, 123. Triacetyljapaconitine (DUSSTAX and READ), T., 54 ; P., 1899, 207. 1:3:4-Triethylbenzene. See 4-Cumeiie. Triethylsulphine iodide mercuric iodide (SMILES), T., 162 ; P., 1899, 240. 1:3:5-Trimethylbenzene. See Mcsityl- one. 2:34-Trimethylbeneoio acid (peh?iitylic acid) (LhPWOIlTH and CHAPMAN), ‘r , 311 ; P., 1900, 4. Trimethylbrazilin, oxidation of, with potassium permanganate (GILBODY, PEILKIS, and YATES), P., 1900, 105. aSB-Trimethylbutyric acid, y-cyano-, ethyl ester (THOBPE and YOUKG), T., 939 ; P., 1900, 115. Trimethyldihydroresoreylic acid, ethyl ester and Trimethyldihydroresorcinol and its ethyl ether and bronio-derivu- tives (CROSSLET), P., 1900, 90. Trimethyldihydroxybenzenes (COLLIE and STEELE), T., 961 ; P., 1900, 146. tmm-Trimethylenedicarboxylic acid, fornintion of ( UOJVTELI, aiid PERKIS), l’., 1899, 242. aBB-Trimethylglutaric acid ( h c m i ~ e - dicnrboxylic acid) ( CIIOSSLEY), P., 1900, 91. Trimethylhydrindamine iodide, prepara- tion of, and indene from (KIPPING and HALT,), T., 469 ; P., 1900, 54. Trimethylpyrone (COLLIE niid STEELE), T., 961 ; P., 1900, 146. Trimethylsulphine iodide mercuric iodide (SMILES), T., 161 ; P., 1899, 240. -broi,to-n,,2inotoZ2cencs) (CHATThWAY and ORTOX), T., 790 ; P., 1900,INDEX OF SUBJECTS. 1363 Triphenylcarbinol, attempts to l)rel)iire ethers of (LANDER), T., 732. V. Valeric acids (a- and B-,m.dliylbictyric acids), y-cyano-, ethyl esters ( HOWLES, THOILPE, and UDALL), T., 947 ; P., 1900, 116. Vanadium, separation of, from sulphuric acid ( G o ~ u m ) , T., 1096. Vapour density of dried mercury and of dried mercurous chloride (UAKEE), T., 646 ; P., 1900, 68. Vapour pressure of camphor (ALLEN), T., 413 ; P., 1899, 135. of diisopropyl and diisobutyl (YOUNG and FORTEY), T., 1126 ; P., 1900, 165. of naphthalene (ALLEN), T., 400 ; P., 1899, 122. of moctane (YOUSG), T., 1145 ; P., 1900, 166. Vitexin, coiistitution of (PEEKIN), T., 422 ; P., 1900, 45. Volume, specific, of diisopropyl and diisobutyl (YOUNG and FOISEY), T., 1126 ; l’., 1900, 165. of n-octane (YOUXG), T., 1145; P., 1900, 166. W. Water, conductivity of, distilled in air Willow bark, new glncoside from (WALKER and CorinracIc), T., 11. (JOWE’TT), ‘r., 707 ; P., 1900, 89. X. Xylenes, o-, 1 1 1 - , and 11-, rcfractioii ant1 magnetic rotation of (PECKIN), T., 267 ; l’., 1899, 237. Xylidines, isomeric, sepai’ation of, from commercial sylidine ( HODGKIKSOK and LInwAcH), T., 65 ; P., 1899, 202. 2. Zinc alloys with copljer, heat of conibin- Zinc sulphate, combination of, with ammonia in aqueous solution (DAW- SON and MCCICAE), T., 1245 ; I?., 1900, 173. hydroximidosulphate, production of (DIVEILS and HAGA), T., 690 ; P., potassium sulphate (MALLET), T., 220 ; P., 1899, 227. ation of (BAKER), P., 1899, 195. 1900, 71.