INDEX OF AUTHORS' NAMES. TRANSACTIONS. 1920. A. Alimchandani B ~ p c i ~ ~ i t d Lilarnni and Andrew Norman Meldram derivatives of gallic acid. Part I. Synthesis of 4 - hydroxy - 3 5 - ctimethoxyphthalic acid 964. Archibald Ebenezer Henry the hydro-lysis of platinum salts. Part I. Po-tassium platinichloride 1104. Armstrong Edward Franklanil and Thonras Percy Hilditch the ethylene-oxide structure of sucrose and some other carbohydrates 1086. Arnall Francis the determination of the relative strengths of some nitrogen bases of the aromatic series and of some alkaloids 835. Atkins William Ringrose Gehton cer-tain binai,y and ternary mixtures of liquids having constant boiliug points, 218. Atkinson Ralph Hall Charles Tlwmas Heycock and (Sir) Williant ,Tackson Pope the preparation and physical properties of carbonyl chloride 1410.B. Bagster Lawicelot Salisbury and George Cooling . electrolysis of hydrogen bromide in liquid sulphur dioxide 693. Baillie (Miss) Aileen Alcxmder Kilieih Macbeth and (Miss) Nora Irene Max-well the effect of reducing agents on tetranitromethane and a rapid method of estimation 880. Raker Herbert Brereto9t. See Bainsay Niddleton Winter. Barker Thomas Viposzd aiid (Miss) ilfary Winearls Porter the eHect of asynimetry ; a study in crystal struc-ture 1303. Bausor Harold FVilZiarn Charles Stan-ley Gibson and (Sir) William Jackson Pope! interaction of ethyleiie and selenium monochloride 1453. CXVII. Becker Oscar and Jocelyn Pield Thorpe, the formation aiid stability of spLro-compounds.Part 111. spiro-Com-pounds from cyclopentane 1579. Beckett Ernest George the estimation of nitrogen in nitrocellulose and ill-organic nitrates Kith the nitrometer, 220. Beesley Richard Noore and Jocelyn Field Thorpe [with Christopher Kelk Ingold] the formation and stability of associated alicyclic systems. Part I. A system of nonienclature and some derivatives of nrethane-11-cyclopropane and of methane-111-cyclopropane 591. Bell Janws. See Enid AZphonse Werner. Bhatnagar Shastti Swampa studies in emnlsions. Pait I. A new method of determining the inversion of phases, 512. Booth Hewy. See Dul.zie2 Llewellyn Hammick. Boyd A lecander John Percy Herbert Clifford and Maurice Ernent Probert, derivatives of pheiiyldihydl.oiesorcin, 1383.Brady Oscar Lisle and Arthur Taylor, 2:3:6-trinitrotolucrie a new synthesis, 876. Brady Oscar Lisle and I'crcy A'bcl Williams the synthesis of so1ue nit io-derivatives of toluene 1137. Brady Oscar Lisle. See also Atnrev FYilliana Cook and (AIisss) Veriz Wentworth. Briggs Sanauel Elenry C l i f w d the nature of the B-fenicynnides and the #I-ferrocyanides 1026. Browning Kendall Colin. See 3'ILwins Martiit Lowry. Burns Henry. See H m y Wren. Burrows George Josipl~ slid Ezistncc Ebcnezer Turner a new type of coni-pound coiitaiuitig arsenic 13i8. Butler Geyald S)LOZL.~G?L and IIorace Bawatt Dunnicliff the action of alco-hol on the snlphatw of cotliiini 649. Y 1650 IKDEX OF AUTHORS. C. Carter Sidney Raymond. See William Wardlaw.Challenger Frederick and Archibald Edwiiz Goddard orgailo-derivatives of bismuth. Part 111. The preparation of derivatives of quinquevalent bis-muth 762. Chattaway Frederick Daniel and h'dou-ard Saerens n-butyl chloroformate and its derivatives 708. Chattaway Frederick Daxiel and Ct'illiarn Tesh isomeric phthalyl-hydiazicl cs 7 11. Chaudhuri I'arini Charan synthesis of borairilides. Part 1. Boranilide and its derivatives 1081. Chikashige Masumi the composition of ancient Eastern bronzes 917. Chorley Percy ai d Arthur Lapworth, a new series of nitrogenous C O I I I ~ O U ~ I ~ S obtained from camphoroxalic acid 728. Chws Francis Herbert. See William Wardlaw. Clifford Percy Herbert. See A lexander John Boyd. Cook James Wiyred and Oscar Lisle Brady tlie nitration of acetom-tolnididr 750.Cooke lt'illiam Ternent. See Edward Henry Rennie. Cooling (Jeorge. See Lancelot Salisbury Bags ter . Copisarow Jficurice phthaleins an11 crtrbazole-blue and carbazole-violet, Cox Henry Edward the influence of the solvent on the velocity of reaction be-tween cei tairi alkyl iodides and sodium B-naphthoxide 493. Cremer Herbert GZ'illiasn. See Leonard Eric Hinkel. Cromp ton Rolkand and (Miss ) Paule Lazcre Vanderstichele the use of a& diclilorovin~ 1 ottiyl ether for the pro-duction of chloroacetates and acid chlorides 691. Crookes (Xir) William obi tnary notice fluoram 209. 1.542. Of) 444. D. Davies John & k ~ x k y Herbert. See Fwderick Afaurice Rowe. Davies 1vt&a?n spthetical experi-mrnts with BB'-dichloroethyl sulphide, 297.Day Ja?ncs hrelso9h Ednzund George Arnzand Robert Eon and Arnold Stevenson the preparation of eyclo-pentane- 1 :1 -diacetic acid 6 39. Day James Nelson Edmund and Jocelyn Yield Thorpe the formation and re-actions of imino-compounds. Part XX. The coiiclensation of aldehydes with cyanoacetainide 1465. Dean Harry Yikgibbon and Maximilian Nierenstein 8-hydroxy-2:3-quino-xanthone 802. Denham Hewry George. See Bertram Dzllon Steele. Denham IYilliam. Smith and Lionel Frederick Knapp the preparation of rnethylainine from amnionium methyl sulphnte 236. Dey Manik Lal. See Jfiaqtendra Nath Rfy. Dhar Sirrendra hrath experiments on halogenation ; the direct displace-ment of negative groups by halogen in the aromatic series.Part I. The displacement of the nitro-group by bromine 993. some nitro-derivatives of naphthalene aud anthraquinone 1001. a comparative study in the xailthone series. Part I. 1053. Dixon Augustus Edward and Raymond Thomas Joachint Kennedy acyl sub-stituted isothiohydantoiiis 74. carboalkyloxythioc~rbamides 80. Dixon Augustus Edward and John Taylor theacylation of thiocarbaiirides, 720. Dobbie (Sir) Ja?iies Johnston presidential dddrebs 430. Drew Harry Dugald Keith. See Gilbert Thomas Morgan. Drew Royston Bnrry the formation of 2 3:6 ~ triuitrbtoluene in tlie nitration of toluene 1615. Duff James Coop-. See Thonzas Xlater Price. Dunnicliff Horace Barralt. See Gerald Snozuden Butler.Dunnill Sydney. See James Charles Philip. Dutt GzLru. See Bazoa Kartar Singh. E. Evans Percy Edwin. See William Hobson Mills. F. Fairley Thomas obituary notice of, 4 54. Fargher Xobert George orientation of the nitro- and arylazo-glyoxalines ; fission of the glyoxalone nucleus 668 INDEX OF 4UTHORS. 1651 Fargher Aobert George arsinic acids derived from guaiacol and veratrole ; constitution of the polyarsenides, 865. diethylenetriamine and triet hylene-tetramine 1351. Fargher Bobert George aiid Prank Lee Pyman the composition of sdvarsan, 370. Farmer Emest Harold and Cliristoplw Kelk Ingold the chemistry of’ poly-cyclic structures ill relation t o their lioniocyclic unsaturated isomeridcs. Part I. Some derivatives of cyclo-pentene and dicyclopentane 1362.Farmer Aobert Crosbie the decompo-sition of nitric esters 806. the velocity of decomposition of high explosives in a vacuum. Part I., 1432. the preparation of pure carbon dioxide, 1446. the velocity of decomposition of high explcsives in a vacuum. Part 11. Trinitrophenylrne thyluitroamino (tetryl) 1603. Farmery Joshua William. See Thonm Fearon William Robert. See Eiitil Fenton Joseph. See Frank Douglas Miles, Ferriss Clarcnce Victor aiid Eustace Ebeitexer Turner studies in ring forma-tiou. Part 111. The condensation of aromatic aniines with a- and B-di-ketones and with 4:4‘-diacetyldiphenyl, 1140. Pinlayson Hedley Herbert. See Edward Henry Rennie. Firth James Brierley the sorption of hydrogen tiy palladiuni a t low tem-peratures 171.surface tension of mixtures of water and alcohol 268. the permeability of glass to iodine and bromine vapours 1602. Fisher Walter William obituary notice of 456. Forster iWartin Onslow Emil Fischer Memorial Lecture 1157. Porster XartLn Onslow and FJTilliam Bristow Saville studies i n the cam-phane series. Part XXXVIII. The cyanohydrazone of camphorquinone, 753. Franchimont Antoine Paul Nicholas, obituary notice of 457. Martin Lowry. A lphonse Werner. G. Garnett Cecil Stevenson coiouring matters of red and blue fluorite 620. Garrard Btanley fircderick. See Charles Qhosh Jnanenrlra Chanclra the elec-trical conductivity of pure salts in the solid and fused states; deter-mination of the activity-coefficicnts of ions in solid salts 823.the electrical conductivity of potas-sium sodium and barium chlorides in mixtures of pyridine and water, 1390. Ghosh I’raphzdla Chrmdra. See Kieinud Bdhari Sen. Gibson Charlcs Stmlcy some new de-rivatives of mesitylene and $-cumene, 948. Gibson Clinrlcs Stanley and (Sir) William Jackson Pope /?$-dichloro-etliyl snlphide 271. Gibson Charles Stanley. See also IIai’old William Bausor. Gibson William Howieson and ( M i s s ) Laura Mary Jacobs the falling sphere viscosinieter 473. Gibson William Howieson [with Leo Spencer aiid Robert YcCalll the viscosity of solutions of cellulose. Parts I. and II. 479. Gladding Geofrey. See Henry Stephen. Goadby Hector Kenneth. See Dnlxiel Llezuellyn Hammick. Goddard Archibald Edzoin.See Frederick Challenger. Goodson John Augustus constituents of the leaves of Iielinus oratm, 140. Greenwood (Miss) Annie and JInxi-nailian Nierenstein studies iu the chronian series. Part I. 1594. Greenwood Harold Cecil obituary notice of 462. Groves Churles Edward obituary notice of 464. Gapta Lilananda tlie action of mer-curic cyanide on metallic salts 67. Weizmann. H. Hamer (Miss) Franccs Mary. See William Hobson Mills. Hammick Ilalziel Llezoellyn Hector Kenneth Goadby and Henry Booth, disodium hydrogen phosphate dodeca-hydrate 1589. Harcourt August us George Vernon, obituary notice of 1626. Hawkins James Arthur. See Eric Kefghtley Rideal. Haworth Walter iVorman the consti-tution of the disaccharides. Part IV.The structure of the fructose residue in sucrose 199 1662 INDEX OF AUTHORS, Henderson George Uerald and Thomas Frederick Smeaton contributions to the chemistry of the terpenes. Part XIX. Synthesis of a nL-menthadiene from m-iso-cymene 144. Henry Thomus Aq~dcrson liyenanchin and other constituents of Ryeizanche globosa 1619. Hepworth Barry the action of the Grignard reagent on aromatic nitro-compounds 1004. Heycock Charles Thomas. See Ealph Hall Atkinson. Heyrovskf Jaroslav the elec tro -a ffinity of aluminium. Part I. The ionisa-tion and hydrolysis of aluminium chloride 11. the electro-sanity of aluminium. Part 11. The aluminium electrode, 27. the electro-affinity of aluminium. Part 111. The acidft and consti-tution of alnminic a c i l 1013.Hickinbottom. Wilfred John. See Joseph Reilly " Higginbotham (Jliss) Lucy and Henry Steohen. studies in the coumaranone * * series. Part I. The preparation of 4- 5- and 6-methylcoumaran-2-ones, and some derivatives of o- m- and p-tolyloxyacetic acids 1534. Hilditch T!wmas Percy. See Edward Frankland Armstrong. Hinkel Leonard Eric the action of chlorine on 3:5-dichloro-l:l-dimethyl-A2:4-cyclohexadiene 1296. Hinkel Leonard Eric and Herbert William Cremer the condensation of ethyl acetoacetate with p-dimethyl-aminobenzaldehyde and ammonia 137. Hinshelwood Cyril Norman the rate of decomposition of malonic acid, 156. Hollely William Francis volumetric estimation of B@-dichloroethyl sul-phide 898. Holmes John obituary notice of 466.Rook Rexford George See John Read. Hopkins Thomas the action of ethyl chloroformate on pyridine and quinol-ine 278. Hunt (Miss) Beatrice Elizabeth the preparation of ethyl iodide 1592. Hunter Harold. See Robert Howson Piokard. I. Ingold Chridopher Kelk. See Ernest Earold Farmer and Jocelyn Field Thorpe. Irvine James Colqz~hoz~n and (Miss) Ettie Stewart Steele the constitution of polysaccharides. Part I. The re-lationship of inulin to fructose 1474. Irvine James Colqdwun and Charles William Soutar the constitution of polysacoharides. Part 11. The con-version of cellulose iuto glucose 1489. J. Jacobs (Miss) Lawa Mary. See William Howieson Qibson. James Cuthbert William James Kenner, and Wilfrid Victor Btnbbings note on the preparation of certain iodo-compounds 773.James Thomas Campbell James Ivor Morgan Jones and Robert Illtyd Lewis, the action of amines on trinitrophenyl-me thy lnitroamine 127 3. Jones (Miss) Catherine Margaret and William Cudmore JlcCullagh Lewis, studies in catalysis. Part XIV. The mechanisin of the inversion of sucrose, 11 20. Jones James Ivor Morgan. See Thomas Campbell James. Joseph Alfred Francis the solubility of potassium bromide in bromine water, 377. K. Kennedy Raymond Thomas Joachim. See Augustus Edward Dixon. Kenner James and Michael Parkia the influence of nitro-groups on the re-activity of substituents in the benzene nucleus. Part 11. The dinitrotolucnes, Kenner James. See also Cuthbert William Jame B . King Harold ortho-para-isornerisni in the preparation of diaminodiphenyl-methane 988.Knapp Lionel Frederick. See William Xmath Denham. Kon George Armand Robert. See James Nelson Edmund Day. b 852. L. Laing (Miss) Mary Evelyn and James William McBain the investigation of sodium oleate solutions in the three physical states of curd gel and sol, 1506. Lapworth Arthur and Frank Albert Royle homocarirphor 743. Lapworth Arthur. See also Percy Chorley INDEX OF AUTHORS. 1653 Lessing Rudolf the behaviour of thc constituents of banded bituniinour coal on coking; studies in the com. position of coal 247. Levin (Miss) Esther. See Frederick Maurice Rowe. Lewcock William. See Robcrt Howson Pickard. Lewis Robert Illtyd. See TJiomas Camp. bell James. Lewis William Cudmoye McCdlngh, studies in catalysis.Part XIII. Con-tact potentials and dielectric capacities of metals in relation to the occlusion of hydrogen and hydrogenation 623. Lewis William Cudmore McCullagh. See also (Miss) Catherine Margaret Jones. Lowry Th,omas Martin Rendall Colin Browning and Joshua 1Villiam Farmery the decomposition of nitric esters by lime 552. M. McBain James William. See (ilfiss) Mffiry Evelyn Laing. Macbeth Alexander Killen. See (Miss) Aileen Baillie. McCall Robert. See William Howieson Gibson and Irvine Masson. YcKenzie AZexaiider and John Kerfoot Wood observations on some organic compounds of arsenic 406. McKenzie Alexander and Henry Wren, the behaviour of optically active esters on hydrolysis 683. MacKenzie (Miss) Mary Ricssell.See A Zexander JIilcheZl Williams. McKie (Miss) Phyllis Violet estimation of nitroform by potassium permangan-ate 646. McKie (il!Iiss) Phyllis Violet. See also Kennedy JosepJL Previtd Orton. McLennan Joh7L Cunninghffim helium : its production and uses 922. Mason Walter and Richard Vernon Wheeler the propagation of flame in mixtures of methane and air. Part I. Horizontal propagation 36. the propagation of flame in mixtures of methane and air. Part 11. Vertical propagation. Part 111. Propagation in currents of the mixtures 1227. Masson Irwine and Robert XcCall the viscosity of solutiona of nitrocellulose in mixtures of acetone and water 819. Maxted Edward Bradford the influence of hydrogen sulphide on the occlusion of hydrogen by palladium.Part II., 1280. the influence of lead on the catalytic activity of platinum 1501. Maxwell (Miss) Nora Irene. See (Bliss) Aileen Baillie. Mazumder Jatindra Kunzar and Edwin Roy Watson the constitution of yellow sulphide dyes 830. Meldrum Andrew Norman. See Xup-chand Lilnram Alimchandani. Miles Frank Douglas and Joseph Fenton the solubility of sulphur dioxide i n sulphuric acid 59. Mills William Hobson and Percy Edwin Evans the cganine dyes. Part 11. The synthesis of o-aminocinnamylidene-quinaldine methiodide 1035. Mills 1VilZianL Hobson and (Miss) Frames ilfary Hamer the cyaniiie dyes. Part 111. The constitution of piiiacyanol 1550. Mills WiZlianz Bobson and CJiarles Reynolds Nodder the resolution of the ketodilactone of benzophenone-2:4:2’:4’-tetracnrboxylic acid 1407.Mills 1ViZliam Nobson and Robert Scott Wishart the cyanine dyes. Part I. The constitution of the isocyanines, 579. Mitchell AZcc Dimcan studies on hypo-phosphorous acid. Part I. I t s ionisation equilibria 957. studies on hypophosphorous acid. Part IT. Morgan Gilbert Tho7na.s and Burry Dugald Keith Drew o-chlorodinitro-toluenes. Part I. 784. researches on residual affinity and co-ordination. Part 11. Acetyl-acetones of selenium and tellurium, 1456. l o r g a n GiZbert Thomas and Dudley Clocte Vining diphenylarsenious chlor-ide and cyanide. (Diphenylchloro-arsine and diphenylcyanoarsiiie) 717. Mukherjee Jfianendra Nath coagula-tion of metal sulphide hydrosols. Part 11. Influence of temperature on the rate of coagulation of arsenious sulphide hydrosols 350.Mukherjee Jiiunendra Xath and Basil Constantine Papaconstantinon the coagulation of gold hydrosols by electrolytes ; the change in colour, influence of temperature and repro-ducibility of the hydrosol 1563. Myddleton William Whalley. See Bcnry Wren. Its reaction with iodine 1322. N. Nierenstein illaximilian the constitu-tion of catechin. Parts I. and II., 971 1151 1654 INDEX OF AUTHORS. Nierenstein &Iaxi.miliun. See also Harry Titxgibbon Dean and (Miss) Annie Greenwood. Nodder Charles Xeynolds. See William Uobson Mills. Orton Kennedy Joseph PreziM and (Miss) PI1 yblis Violet IcKie the action of nitric acid on unsaturated hydro-carbons ; the action of nitric acid on acetylene 283.O’Shea Lucius Trant obituary notice of 1631. P. Papaconstantinou Basil Constantine. See JCanen dra Nat h M ukherj ee . Parkin Illichael. See James Kenner. Payman William the propagation of flame in complex gaseous mixtures. Part IT. The uniform movement of flame in mixtures of methane oxygcn and nitrogen ; “ maximum-speed mixtures” of methane and hydrogen in air 48. Pennington (Miss) Hannah Smith de. See Bobcrt Howson Pickard. Perkin Arthur George some properties of benzanthronr 696. Philip James Charles Sydney Dunnill, and (Miss) Olive Workman the activa-tion of wood-charcoal by heat treat-ment 362. Pickard Robert Howson Harold Hunter, William Lewcock and (Miss) Hannah Smith de Pennington the alcohols of the hydroaroiiiatic and terpcne series, Part 111.isoPnlego1 1248. Pollard William Hrunch the action of aqua regia on gold-silver alloys in the presence of ammonium salts 99. Pope (Sir) 14’illianz Jackson and Etutaee Ebenexer Turner triphenyl-arsine and diphenylarsenious salts, 1447. Pope (Sir) William Jmkson. See also Ralph Hall Atkinson Harold William Bausor and Charles Stanley Gibson, Porter (Miss) Mary 1Vinearls. See Thomas Vipond Barker. Price Thomas Slnter complex metallic ammines. Part 111. Dichlorotetra-pyridinecobslt salts EGO. Price Thomas Slater and James Cooper Duff comp!cx metallic ammines. Part IV. cis-Sulyhoacetato- cis-methionato-and cis-dimetliylmalonato-diethylene-diamiiiecobaltic salts 1071. Probert Maurice Ernest. Bee Alexander John Boyd.Pyman Frank Lee and Leonard Allan Ravald 0- and p-tolueneazogly-oxalines 1426. the sulphonation of glyoxalines 1429. Pyman Frank Lee. See also Robert George Fargher. R. Ravald Lconard Allan. See Frank Lee Pyman. Ray Jtiaaendra Nuth modification and extension of the Friedel and Crafts’ reaction Part I. 1335. RPy Jiianendra Nath, and Afanik LnZ Dey the catalytic action of iodine in sulphonntion. Part I. 1405. Riy (Sir) Prafulla Chandra triethglene tri- and tetra-sulphides 1090. RPy Priyadarnnjan ar?d Pidin Vihari Sarkar compounds of thiocyanstes of certain bivalent metals and hydrazinc, 321. Read John and Rexford George Hook, the preparation and characterisation of ethylene bromohydrin 1214. Read John and (Miss) Margaret Mary Williams the preparation of halo-genohydrins 359.Redwood (Sir) Boverton Bart. obituary notice of 467. Reilly Joseph and Wilfred John Hickinbottom intramolecular re-arrangement of the alkylarylamines : fornistion of 4-amino-n. butylbenzene, 103. Rennie Edward Henry William Ter-ned Cooke and Hedley Herbert Fin-layson an investigation of the resin from species of Xanthorrhaa not previously examined 338. Report of the Council 416. Reynolds James Emerson obituary notice of 1633. Rideal Eric Keiglztley and James Arthzw Hawkins catalysis in the hydrolysis of esters by infra-red radiation 1288. Robertson Philip lT’i(fred. See Richard Bobert Le Geyt Worsley. Rowe Trederick Maurice and John Stanley Herbert Davies studies in the acenaphthene series.Part I. The conversion of o-nitroarnines into iso-oxadiazole oxides 1344. Rowe Trcderick Naurice and (Miss) Estlzer Levin studies in the dihydro-nstphthalene series. Part I. The ar-dihydro-a-naphthylamines and their derivatives 1574. Royle Frank Albert. See Artlzzir Lap-worth INPEX OF AUTHORS. 1655 S. Saerens Edotiard. See Frederick Daizicl Chattaway. Salmon Cyril Sebastian direct experi-mental determination of the concen-tration of potassium and sodiuni ions in soap solutions and gels 530. Sarkar Pidin Yihari. See Pyiyada-ranjan Rky. Saunders Kenneth Herbert some new nzopyriuolones and allied compoiinds, 1264. Saville ViJlinnz Bristow. See Martin Onslow Forster. Sen ILi'e.l?zud Behari and Praphzdla Chandra Ghosh phloroacetophenone, 61.Short Wallace Fmnk. See Henry Stephen. Sidgwick Nevi1 Vincent the influence of Iiosition 011 the boiling poitits of isomeric benzene derivatives 389. volatility in steam benzoic acid and its derivatives 396. the freezing point of wet benzene and the influence of drying agents 1340. Sidgwick Nevi1 Vincent and IVilliam James Spurrell the system benzene-ethyl alcohol-water between + 25" and - 5 " 1.197. Simonsen John Lionel note on the con-stituents of Aiorinda citrifolia 561. syntheses with the aid of monochloro-methyl ether. Part IV. The con-densation of ethyl benzylsodio-nialo II ate and nionochlorom e thy 1 ether 664. the constitnents of Indian turpentine from Phius longifolia Roxb. Part I. 570. Singh Bawa Kartar studies in sub-stituted quaternary azoniutii com-pounds containing an aqyininetric nitrogen atom.Part 111. Resoliltion of phenylmeth ylethylazonium phenyl-benzylpropylazonium and plienyl-henzylallylazonium iodides into optic-ally active cornponwts 1202. Singh Bawa Kartur Dalip Singh, Guru Dutt and Gopal Singh studies on the dependence of optical rotatory power on chemical constitution. Part 11. The effect of position iso-merism and conjugation on optical activity among aryl derivatives of amino- and bisimino-camphor 980. Singh Bawa Kartar and Malian Singh, studies on the dependence of optical rotatory power on chemicd con-stitution. Part 111. 1 4-Naphthyl-enobisiminocamphor 1599. Singh DaJip. See Bawa Kartnr Singh Singh Gopal.See Bawn Kcwtar Singh. Singh Xahan. See Bawa h7artar Singh. Sinkinson Eric some observations on the action of coal on a photo-graphic plate 165. the transition from coal to coke 839. Slater William Kershnw experiments on the preparation of oximino-derivn-tives 587'. Slater JVilZiain Rershaw and Henry Stephen some derivatives of fisetol, 309. firneaton Thomas Frederick. See Geo?-p Gerald Henderson. Smith. Watson obituary notice of, 1637. Soutar Cl~rlrlcs Willinnb. See Jnntes Colpirhoun Irvine. Spencer Leo. See TVillianz Howieson Gibson. Spurrell William James. See A-evil Yii~cent Sidgwick. Steele Bertram Dillon and Hmry George Denham a new hjdrogeri sulphide genet ator 527. Steele (Miss) EJtie Stetcai-t. See Jcmes Colpz~l~oun Irvine.Stephen Henry a new method for the prepamtion of 2:4-dihydroxy- and 2 :4 4'- trih ydrox y -ben zophcn one and some observations relating t o the Hoesch reartion 1529. Stephen Henry Wallace Fmnk Short, and Geofl-i.y Gladding the introduc-tion of the chlororiiethyl group into the aromatic nucleus 510. Stephen Henry. See also (illiss) Lucy Higginbotham and IVillictnz Kershazu Slater. Stevenson Arnold. See Jams ATclson Edmund Day. Stubbings 1YiVricl Victor. See Cicthbcrt Willianz James. Swam Herbert a new modification of 3:4-dinitrodimethylaniline7 1. T. Taylor Arthzcr. See Oscar Lisle Brady. Taylor John the chloroacetates of S-alkylthiocarbamides 4. Taylor John. See also Aicpistus Edwccrd Dixon Tesh lt'illiant. See Frederick Daniel Chattaway.Thorpe Joccl3pz Field. See Oscar Becker Richard M o o r e Beesley and James Nelson Edrnzind Day 1656 INDEX OF AUTHORS. Tideswell Frederick Vincent and Richard Vernon Wheeler the oxida-tion of the ingredients of banded bituminous coal ; studies in the corn-position of coal 794. Tizard Henry Thomas nnd .John Rcgznald Earvey Whiston the effect of a change in temperature on the colonr changes of methyl-orange and on the accuracy of titrations 150. Turner Ihstacc Ebenczer. See George .Joseph Burrows Clarence Victor Ferriss and ( S i r ) William Jackson Pope. U. UmeY John aarEes obituary notice of 470. V Vanderstichele ( X i s s ) Paule Lawe. Vernon Richard I€enry organic deriva-See Holland Crompton. Werner Einil A lpho?uc the constitution of carbaniides.Part XII. The de-composition of urea when heated in solution in the presence of acids 1078. Werner Emil AlpAonse and James Bell the preparation of guanidine by the interaction of dicyanodiamide and ammonium thiocyanate 1133. Werner Entil Alphonse arid William Bob& Fearon the constitiition of carbamides. Part XIII. The con-stitution of cyanic acid and the formation of urea from the interaction of ammonia and cyauic acid a t low temperatures 1356. Wheeler Richard Vernon the ignition impulsive electrical discharge ; mix-tures of methane and air 903. "p;zr ~ ~ ~ " ~ ~ ' & i c ~ ~ of gases. Part 1. Ignition by thc Tideawe''' me thy ltell won iu m di ha1 aids 8 6. organic derivatives of tellurium. Part 11.Constitution of the di-methyltelluronium dihaloids 889. Vining Dudley Cloete. See Gilbert W. Walker James war experiences in the manufacture of nitric acid and the recovery of riitrons fumes 382. Wardlaw William Sidney Raymond Carter. and Francis Herbert Clews, the oxitlising properties of sulphur di-oxide. Part 11. Iron phosphatrs,l241. Wardlaw FYillinm and Traitcis Herbert Clews the oxidising proper-ties of sulphur dioxide Part I. Iron chlorides 1093. Watson Edwin Boy. See Jntindra Kumar Maznmder. Weizmann Charles and Stanley Yrederick Garrard some condenra-tions of n-butyl alcohol and n-hutalde-hyde 324. Weatworth (Niss) F7era and Oscar Lisle Brady the isomerism of the oximes. Part IX. 2:4-Dinitrobenz-aldoxime and bromo-substituted hydr-oxy- and methoxy-benzaldoximes,1040, Werner Alfred obituary notice of 1639.Werner Emil Alphome the constitn-tion of carbamides. Part XI. The mechanism of the synthesis of urea from ammonium carbamate ; the pre-paration of certain mixed trisub-stituted carbamates a,nd dithiocarb-amates 1046. Thomas Xorgan. tives of. tellurium. Part I. Di- interadtion of CLlorine and "marsh gas under the influence of light ; the conversion of methyl chloride to methyl alcohol and methyl acetate, 183. Whiston John Regimld Harvey. See also Henry I'homns Tizard. Williams Atcxander Mitchell and (Miss) Mary Russell Mackenzie peri-odic precipitation. Part I. Silver chromate in gelatin 844. Williams Howell. See Henry Wren. Williams (Jliss) Xargaret Nary. See John Read. Williams Percy ATOel. See Oscar Lis7e Brady. Winter Ramsn?y Ziddleton and Herbcrt Brereton Baker the effect of heating on the absorptive power of sugar-charcoal for snlphur dioxide 319. Wishart Eobert Scott. See William Hobson Mills. Wood John Kerfoot. See Alexander RTcKenzie. Workman (Miss) Olive. See James Ch ccrles Philip., Worsley Richard Eobert Le Geyt and Philip Wilfred Robertson the per-oxides of bismuth 63. Wren Henry anti Henry Burns l-hexyl-succinic acid 266. Wren Henry Howell Williams and William Wha lley Myddleton studies in the resolution of racemic acids by optically active alcohols. Part I. The resolution of r-tartaric acid by l -borneol 191. Wren Elewy. See also Alexander McKenzie. Whiston. John 12ecrigur;ld Harvev. th