J 0 U R N A L OF THE CHEMICAL SOCIETY, TRANSACTIONS. A. J. ALLMAND M.C. D.Sc. A. W. CROSSLEY C.M.G. C.H.E., SIR JAMES J. DOBBIE M.A. D.Sc., M. 0. FORSTER D.Sc. Ph.D. F.R.S. T. A. HENRY D.Sc. J. T. HEWITr M.A. D.Sc. Ph.D., D.Sc. P.R.S. F.R..S. F.R. 8. C. A. KEANE D.Sc. Ph.D. H. R. LE SUEUR D.Sc. T. M. LOWRY C.B.E.,D.Sc. F.R.S. J. I. 0. MASSON M.B.E. D.Sc. G. T. MORGAN O.B.E. D.Sc., J. C. PHILIP O.B.E. DSc. Ph.D. A. SCOTT M.A. D.Sc. F.R.S. F.R.S. 6Ebifur : J. C. GAIN D.Sc. Sub- @Ebifar : A. J. GREENAWAY. &eistarrt Sab.-@;bEfol : CLARENCE SMITH D.Sc. 1920. Vol. CXVII. LON DON : GURNEY & JACKSON 33 PATERNOSTER ROW E.C. 4. 1920 PRINTED IN GREAT BRITAIN BY RICHARD CLAY & SONS LIMITED, PARIS GARDEN STAMFORD ST. 5. E . 1, AND BUNGAY SUYBOLK J O U R N A L OF THE CHEMICAL SOCIETY.TRANSACTIONS. A. J. ALLMAND M.C. D.Sc. A. W. CROSSLEY C.M.G. C.B.E., SIR JAMES J. DOBBIE M.A. D.Sc., M. 0. FORSTER D.Sc. Ph.D. F.R.S. T. A. HENRY D.Sc. J. T. HEWITT M.A. D.Sc. Ph.D., D.Sc. F.R.S. F. R. S. F.R. S. C. A. KRANE D.Sc. Ph.D. H. R. LE SUEUR D.Sc. 1’. M. LOWRY C.B.E. D.Sc. F.R.S. J. I. 0. MASSON M.B.E. D.Sc. G. T. MORGAN O.B.E. D.Sc., J. C. PHILIP O.B.E. D.Sc. Ph.D. A. SCOTT M.A. D.Sc. F.R.S. F.R.S. dbiior : J. C. CAIN D.Sc. Snb- mdar : A. J. GREENAWAY. %misfant Snb- @;bitor : CLAREWE SMITE D. Sc. 1920. VoL CXVII. Part I. pp. 1-818. LONDON: GURNEY & JACKSON 33 PATERNOSTER ROW E.C. 4. 1920 PRINTED IN GREAT B R f i A I X BY RICH.4RD CLAY &5 SONS LIMITED, PARIS QARDEN STAXFORD ST.S.E. 1, AND BUNGAY SUElWLK CONTENTS. PAPERS COMMXJNICATED TO THE CHEMICAL SOCIETY, 1.-A Nqw Modification of 3 4-Dinitrodimethylaniline. By HER-BERT SWANN . 11.-The Chloroacetates of S-Alkylthiocarbamides. By JOHN TAYLOR . 111.- The Electroaffinity of Aluminium. Part I. The Ionisa-tion and Hydrolysis of Aluminium Chloride. By JAROSLAV HEYROVSKP . 1V.-The Electroaffinity of Aluminium. Part 11. The Alumin-ium Electrode. By JAROSLAV HEYROVSKY . . V.-The Propagation of Flame in Mixtures of Methane and Air. Part I. Horizontal Propagation. By WALTER MASON and RICHARD VERNON WHEELER V1.-The Propagation of Flame in Complex Gaseous Mixtures. Part I'V. The Uniform Movement of Flame in Mixtures of Methane Osygen and Nitrogen.'' Maximum-speed Mixtures " of Methane and Hydrogen in Air. By WILLIAM PAYMAN . VI1.-The Solubility of Sulphur Dioxide in Sulphuric Acid. By FRANK DOUGLAS MILES and JOSEPH FENTON VII1.-Phloroacetophenone. By KIEMUD BEHARI SEN and PRAPHULLA CHANDRA GHOSH . 1X.-The Peroxides of Bismuth. By RICHARD ROBERT LE GEYT WORSLEY and PHILIP WILFRED ROBERTSON . X.-The Action of Mercuric Cyanide on Metallic Salts. By LILANANDA GUPTA . XI.-Acyl Substituted isol'hiohydantoins. By AUGUSTUS ED-WARD DIXON and RAYMOND THOMAS JOACHIM KENNEDY . XI1.-Carboalkyloxythiocarbamides. By AUGUSTUS EDWARD DIXON and RAYMOND THOMAS JOACHIM KENNEDY XII1.-Organic Derivatives of Tellurium. Part I. Dimethyl-telluronium Dihaloids. By RICHARD HENRY VERNON . X1V.-The Action of Aqua Regia on Gold-Silver Alloys in the Presence of Ammonium Salts.By WILLIAM BRANCH POLLARD . . . . . . PAGP, 1 4 11 a7 36 48 59 61 6 3 67 74 80 86 99 XV.-Intramolecular Rearrangementi of the A1 kylarylamines : Formation of 4-Amino-n-butylbenzene. By JOSEPH REILLY and WILFRED JOHN HICKINBOTTOM . . 103 XV1.-The Condensation of Ethyl Acetoacetate with p-Di-methylaminobenzaldehyde and Ammonia. By LEONARD ERIC HINKEL and HERBERT WILLIAM CREMER . . . 13 iv CONTENTS. PAGE XVI1.-Constituents of the Leaves of Helinzcs ovatus. By JOHN AuausTus GOODSON . . 140 XVII1.-Contributions to the Chemistry of the Terpenes. Part XIX. Synthesis of a m-Menthadiene from m-iso-Cymene By GEOEGE GERALD HENDERSON and THOMAS FREDERICK SMEATON .. . 144 X1X.-The Effect of a Change in Temperature on the Colour Changes of Methyl-orange and on the Accuracy of Titra-tions. By HENRY THOMAS TIZARD and JOHN REGINALD HARVEY WHISTON . . . 150 XX.-The Rate of Decomposition of Malonic Acid. By CYRIL NORMAN HINSHELWOOD . 156 XXL-Some Observations on the Action of Coal upon a Photo-graphic Plate. By ERIC SINKINSON . . . 165 XXK-The Sorption of Hydrogen by Palladium at Low Tem-peratures. By JAMES BRIERLEY FIRTH . . 171 XXII1.-The Interaction of Chlorine and Marsh Gas under the Influence of Light. The Conversion of Methyl Chloride to Methyl Alcohol and Methyl Acetate. By JOHN REGINALD HARVEY WHISTON . . 183 XX1V.-Studies in the Resolution of Racemic Acids by Optic-ally Active Alcohols. Part I. The Resolution of r-Tartaric Acid by LBorneol.By HENRY WREN HOWELL WILLIAMS and WILLIAM WHALLEY MIDDLETON . XXV.-The Constitution of the Disaccharides. Part IV. The Structure of the Fructose Residue in Sucrose. By WALTER NORMAN HAWORTH . XXV1.-Phthaleins and Fluorans. By MAURICE COPISAROW . XXVI1.-Certain Binary and Ternary Mixtures of Liquids having Constant Boiling Points. By WILLIAM RINGROSE GELSTON ATKINS . XXVII1.-The Estimation of Nitrogen in Nitrocellulose and Inorganic Nitrates with the Nitrometer. By ERNEST GEORGE BECKETT . SX1X.-The Preparation of Methylamine from Ammonium Methyl Sulphate. By WILLIAM SMITH DENHAM and LIONEL FREDERICK KNAPP . XXX.-The Behaviour of the Constituents of Banded Bitumin-ous Coal on Coking. Studies in the Composition of Coal.XXX1.-Tha Mineral Constituents of Banded Bituminous Coal on Coking. Studies in the Composition of Coal. BY RUDOLF LESSING . XXXI1.-Z-Hexylsuccinic Acid. By HENRY WREN and HENRY BURNS . By RUDOLF LESSING . 191 199 209 218 220 236 247 256 26 CONTENTS. V PAGE XXXII1.-Surface Tension of Mixtures of Water and Alcohol. By JAMES BRIERLEY FIRTH . XXXIV.-PP'-Dichloroethyl Sulphide. By CHARLES STANLEY GIBSON and SIR WILLIAM JACKSON POPE . ' . XXXV.-The Action of Ethyl Chloroformnte on Pyridine and Quinoline. By THONAS HOPKINS . XXXVL-The Action of Nitric Acid on Unsnturatecl Hydro-carbons. The Action of Nitric Acid on Acetylene. By KENNEDY JOSEPH PREVITP ORTON and PHYLLIS VIOLET MCHIE , XXXVI1.-Synthetical Experiments with PP'-Dichloroethyl Sulphide.By WILLIAM DAVIES . XXXVlI1.-Some Derivatives of Fisetol. By W ILLTAAI KER-SHAW SLATER and HENRY STEPHEN . XXX1X.-The Effect of Heating on the Absorptive Power of Sugar-charcoal for Sulphur Dioxide. By R.AMSAT MIDDLE-TON WIXTER and HERBERT BRERETON BAKER . XL.-Compounds of Thiocyanates of certain Bivalent Metals and Hydrazine. By PRIYADARANJAN RAY and PULIN VIHARI SARKAR . XL1.-Some Condensations of n-Butyl Alcohol and n-Butalde-hyde. By CHARLES WEIZMANK and STANLEY FREDERICK GARRARD . XLI1.-An Investigation of the Resin from Species of Xmthor-rhea not previously examined. By EDWARD HENRY RENNIE, WILLIAM TERNENT COOKE and HEDLEY HERBERT FINLAYSON. XLII1.-Coagulation of Metal Sulphide Hydrosols. Part 11. Influence of Temperature on the Rate of Coagulation of Arsenious Sulphide Hydrosols.By J~~ANENDRA NATH MUKHERJEE . XL1V.-The Preparation of Halogenohydrins. By JOHN READ and MARGARET MARY WILLIAMS. XLV.-The Activation of Wood-charcoal by Heat Treatment. By JAMES C. PHILIP SYDNEY DUNNILL and OLIVE WORKMAN XLV1.-The Composition of Sslvarsan. By ROBERT GEORGE FARGHER and PRANK LEE PYMAN . XLVI1.-The Solubility of Potassium Bromide in Bromine Water. By ALFRED FRANCIS JOSEPH . War Experiences in the Xanufacture of Nitric Acid and the Recovery of Nitrous Fumes. A Lecture Delivered before the Chemical Society on December 18th 1919. By JANES WALKER . XLVII1.-The Influence of Position on the Boiling Points of Isomeric Benzene Derivatives. By KEVIL VINCENT SIDGWICK . 268 27 1 27 8 283 297 309 319 32 1 324 338 350 359 362 370 377 382 38 vi CONTENTS.XLIX.-Tolatility in Steam Benzoic Acid and its Derivatives. By NEVIL VINCENT SIDGwIck . . L.-Observations on Some Organic Compounds of Arsenic. By ALEX. MCKENZIE and JOHN KERFOOT WOOD . . ANNUAL GENERAL MEETIKG . PRESIDENTIAL ADDRESS . OBITUARY NOTICES . LI. -The Falling Sphere Viscosimeter. By WILLIAM HOWIESON GIBSON and LAURA MARY JACOBS . LI1.-The Viscosity of Solutions of Cellulose. Part I. By WILLIAM HOWIESON GIBSON. Part 11. By WILLIAM HOWIESON GIBSON [with LEO SeENcER and ROBERT McCALL] L1II.-The Influence of the Solvent on the Velocity of Reaction between certain Alkyl Iodides and Sodium /3-Naphthoxide. By HENRY EDWARD Cox . . L1V.-The Introduction of the Chloromethyl Group into the Aromatic Nucleus.By HENRY STEPHEN WALLACE FRANK SHORT and GEOFFREY GLADDING . LV.-A New Hydrogen Sulphide Generator. By BERTRAM DILLON STEELE and HENRY GEORGE DENHAM . LV1.-Direct Experimental Determination of the Concentration of Potassium and Sodium Ions in Soap Solutions and Gels. By CYRIL SEBASTIAN SALMON . LVI1.-Studies in Ernulsions. Part I. A New Method of Determining the Inversion of Phases. By SHAXTI SWARUPA BHATNAGAR . LV1II.-The Decomposition of Nitric Esters by Lime. By THOMAS MARTIN LOWRY KENDALL COLIN BROWNING and JOSHUA WILLIAM FARMERY . LIX.-Note on the Constituents of Morilzda citrifolia. By JOHN LIONEL SIMONSEN . LX.-Syntheses with the Aid of Monochloromethyl Ether. Part IV. The Condensation of Ethyl Benzyl Sodiomalonate and Monochloromethyl Ether.By JOHN LIONEL SIMONSEN . LX1.-The Constituents of Indian Turpentine from .Pinus Zongifolia Roxb. Part I. By JOHN LIONEL SIMONSEN . LXI1.-The Cyanine Dyes. Part I. The Constitution of the isocyanines. By WIILTAM HOBSON MILLS and ROBERT SCOTT WISHART . LXII1.-Experiments on the Preparation of Oximino-deriv-atives. By WILLIAM KERSHAW SLATER . LX1V.-The Formation and Stability of Associated Alicyclic Systems. Part I. A System of Nomenclature and some Derivatives of Methane-11-cyclopropane and of Methsne-111-cyclopropane. By XICHARD MOORE BEESLEY and JOCELYN FIELD THORPE [with Note by C. K. INGOLD] , PAGE 396 406 41 6 430 444 473 479 493 510 527 530 542 552 561 564 570 5 79 587 59 CONTENTS.vii PAGE LXV.-Colouring Matters of Red and Blue Fluorite. By CECIL STEVENSON GARNETT . * . LXY1.-Studies in Catalysis. Part XIII. Contact Potentials and Dielectric Capacities of Metals in Relation to the Occlusion of Hydrogen and Hydrogenation. By WILLIAM CUDMORE MCCULLAGH LEWIS . LXVI1.-The Preparation of cycZoHeptane-1 1 -diacetic Acid. By JAMES NELSON EDMUND DAY GEORGE ARMAND ROBERT KOX and ARNOLD STEVENSON . . LXVII1.-Estimation of Nitroform by Potassium Permanganate. By PHYLLIS VIOLET MCKIE . LX1X.-The Action of Alcohol on the Sulphates of Sodium. By GERALD SNOWDEN BUTLER and HORACE BARRATT DUNNICLIFF . LXX.-Orientation of the Nitro- and Arylazo - glyoxalines. Fission of the Glyoxalone Nucleus. By ROBERT GEORGE FARGHER .LXX1.-The Behaviour of Optically Active Esters on Hydrolysis. By ALES. McKENztE and HENRY WRW LXXI1.-The Use of ap-Dichlorovinyl Ethyl Ether for the Production of Chloroacetates and Acid Chlorides. By HOLLAND CROMPTON and PAULE LAURE VANDERSTICHELE . LXXII1.-Electrolysis of Hydrogen Bromide in Liquid Sulphur Dioxide. By LANCELOT SALISBURY BAGSTER and GEORQE COOLING . LXX1V.-Some Properties of Benzanthrone. By ARTHUR GEORGE PERKIN . LXXV.-n-Butyl Chloroformate and its Derivatives. By FREDERICK DANIEL CHATTAWAY and EDOUARD SAERENS . LXXV1.-Isomeric Phthalpl hydrazides. By FREDERICK DANIEL CHATTAWAY and WILLIAM TESH . LXXVI1.-The Acylation of Thiocarbamides. Ey AUGUSTUS EDWARD DIXON and JOHN TAYLOR . LXXVII1.-A New Series of Nitrogenous Compounds obtained from Camphoroxalic Acid.By PERCY CHORLEY and ARTHUR LAPWORTH . . . LXX1X.-Homocamphor. By ARTIIUR LAPWORTH and FRANK ALBERT ROYLE . . . LXXX.-The Nitration of Acetom-toluidide. By JAMES WILFRED COOK and OSCAR LISLE BRADY . LXXX1.-Studies in the Camphane Series. Part XXXVIII. The Cyanohydrazone of Camphorquinone. By MARTIN OXSLOW FORSTER and WILLIAX BRISTOW SAVILLE . LXXXI1.-Organo-derivatives of Bismuth. Part 111. The Preparation of Derivatives of Quinquevalent Bismuth. By FREDERICK CHALLENGER and ARCHIBALD EDWIN GODDARD . . . 620 623 639 646 649 668 680 69 1 693 696 708 711 720 728 743 750 75 3 76 ... V l l l CONTEKTS. LXXXI1.T.-Note on the Preparation of certain Iodo-compounds. By CUTHBERT WILLIAM JAMES JAMES KENNER and WILFRID VICTOR STUBBINOS .LXXXIV.-Diphenylarsenious Chloride and Cyanide. (Di-phenylchloroarsine and Diphenylcyanoarsine.) By GILBERT T. MORGAN and DUDLEY CLOETE VINING . . . LXXXV.-ortho-Chlorodinitrotoluenes. Part I. By GILEERT T. MORGAN and HARRY DUGALD KEITH DREW LXXXVT.-The Oxidation of the Ingredients of Banded Bituminous Coal. Studies in the Composition of Coal. By FREDERICK VINCEKT TXDESWELL and RICHARD VERNON WHEELER . LXXXVII.-8 - Hydroxy - 2 3 - quinoxanthone. By HARRY FITZGIBBON DEAN and MAXIIIILIAN NIEREN STEIN . LXXXVIIL-The Decomposition of Nitric Esters. By ROBERT CROSBIE FARMER . LXXX1X.-The Viscosity of Solutions of Nitrocellulose in Mixtures of Acetone and Water. By IRVINE MASSON and ROBERT MCCALL . . G .XC.-The Electrical Conductivity of Pure Salts in the Solid and Fused States. Determination of the Activity-coefficients of Ions in Solid Salts. By JNANENDI~A CHANDRA GHOSH . X CI .-The Constitution of Yellow Sulphide Dyes. By JATINVRA KUMAR MAZUMDER and EDWIN ROY WATSON . . XCI1.-The Determination of the Relative Strengths of some Nitrogen Bases of the Aromatic Series and of some Alkaloids. By FRANCIS ARNALL. . XCII1.-The Transition from Coal to Coke. By ERIC SINKINSON . XC1V.-Periodic Precipitation. Part I. Silver Chromate in Gelatin. By ALEXANDER MITCHELL WILLIAMS and MARY RUSSELL MACKICNZIE . . . XCV.-The Influence of Nitro-groups on the Reactivity of Substituents in the Benzene Nucleus. Part 11. The Dinitrotoluenes. By JAMES KENNER and MICHAEL PARKIN .XCV1.-Complex Metallic Ammines. Part 111. Dichloro-tetrapyridinecobalt Salts. By THOMAS SLATER PRICE . . XCVI1.-Arsinic Acids Derived from Guaiacol and Veratrole. Constitution of the Polyarsenides. By ROBERT GEORGE FARGHER . . . XCVIII.-2 3 6-Trinitrotoluene a new Synthesis. By OSCAR LISLE BRADY and ARTHUR TAYLOR XCIX,-The ERect of Reducing Agents on Tetranitromethane, and a Rapid Method of Estimation. By AILEEN BAILLIE, ALEXANDER KILLEN MACBETE and NORAH IRENE MAXWELL. . . 773 777 784 79 4 802 806 819 823 830 835 839 844 85 2 860 865 876 88 CONTENTS. ix PAGE ANNUAL REPORT OF THE INTERNATIONAL COMMITTEE ON ATOMIC WEIGHTS FOR 1920-1921 . . 885 C.-Organic Derivatives of Tellurium. Part 11. Constitution of the Dimethyltelluronium Dihnloids.By RICHARD HENRY VERNON . . 889 C1.-Volumetric Estimation of PP'-Dichloroethyl Sulphide. By WILLIAM FRANCIS HOLLELY. . . 898 CI1.-The Ignition of Gases. Part I. Ignition by the Impul-sive Electrical Discharge. Mixtures of Methane and Air. CII1.-The Composition of Ancient Eastern Bronzes. By MASUMI CEIBASHIGE . . 917 Helium its Production and Uses. A Lecture Delivered before the Chemical Society on June 17th 1920. By JOHN CUNNINGHAM MCLENNAN . . 923 . C1V.-Some New Derivatives of Mesitylene and q-Cumene. By CHARLES STANLEY GIBSON . . 948 CV.-Studies on Hypophosphorous Acid. Part I. Its Ionisa-CVL-Derivatives of Gallic Acid. Part I. Synthesis of 4-Hy droxy-3 5-dimethoxyphthalic Acid. By RUPCHAND LILARAM ALIMCHANDANI and ANDREW NORMAN MELDRUM .964 CVI1.-The Constitution of Catechin. Part I. By MAXIMILIAN NIERENSTEIN . . . . 971 CVII1.-Studies on the Dependence of Optical Rotatory Power on Chemical Constitution. Part 11. The Effect of Position-isomerism and Conjugation on Optical Activity among Aryl Derivatives of Amino- and Bisimino-camphor. By BAWA KARTAR SINGH DALIP SINGEJ GURU DUTT and GOPAL SINGH . . 980s C1X.-Ortho-para-isomerism in the Preparation of Diamino-diphenylmethane. By HAROLD KING. . . 988 CX .-Experiments on Halogenation. The Direct Displacement of Negative Groups by Halogen in the Aromatic Series. Yart I. The Displacement of the Nitro-group by Bromine. CX1.-Some Nitro-derivatives of Naphthalene and Anthra-CXI1.-The Action of the Grignard Reagent on Aromatic CXII1.-The Electro-affinity of Aluminium.Part 111. The By JAROSLAV CXIV.-The Nature of the P-Ferricyanides and the /3-Ferro-By RICHARD VERNON WHEELER . . 903 tion Equilibria. By ALEC DUNCAN MITCHELL . . 957 By SURENDRA NATH DHAR . . . . 993 quinone. By SURENDRA NATF DHAR . . . 1001 Nitro-compounds. By HARRY HEPWORTH . . 1004 Acidity and Constitution of Aluminic Acid. HETROVSK$ . . 1013' cyanides. By SAMUEL HENRY CLIFFORD BRIQGEI . . 102 X CONTENTS. CXV.-The Cyanine Dyes. Part 11. The Synthesis of o-Aminocinnamylideneyuinaldine Methiodide. By WILLIAM HOBSON MILLS and PERCY EDWIN EVANS . . 1035 CXV1.-The Isomerism of the Oximes. Part IX. 2:4-Dinitrobenzaldoxime and Brorno-substituted Hydroxy- and Methoxy-benzaldoximes. By VERA WENTWORTH and OSCAR LISLE BRADY .. 1040 CXVI1.-The Constitution of Carbamides. Part XI. The Mechanism of the Synthesis of Urea from Ammonium Carbamate. The Preparation of certain Mixed Tri-substituted Carbamates and Dithiocarbamates. By EMIL ALPHONSE WERNER . . 1046 CXVII1.-A Comparative Study in the Xanthone Series. Part T. By SURENDRA NATH DHAR . . . . 1053 CX1X.-Complex Metallic Ammines. Part IV. cis-Sulpho-acetato- cis-Methionato- and cis-Dimethylmalonato-di-ethylenediaminecobaltic Salts. By THOMAS SLATER PRICE and JAMES COOPER DUFF . . . 1071 CXX.-The Constitution of Carbamides. Part XII. The Decomposition of Urea when Heated in Solution in the Presence of Acids. By EMIL ALPHONSE WERNER . 1078 CXX1.-Synthesis of Boranilides. Part I. Boranilide and CSXI1.-The Ethylene-Oxide Structure of Sucrose and some other Carbohydrates.Ey EDWARD FRAXKLAND ARMSTROXG and THOMAS PERCY HILDITCH . . 1086 CXXIIL-Triethylene Tri- and Tetra-sulphides. By Sir PRAFULLA CHANDILA RAY . . 1090 CXX1V.-The Oxidising Properties of Sulphur Dioxide. Part I. Iron Chlorides. By WILLIAM WARDLAW and FRANCIS HERBEBT CLEWS. . . 1093 CXXV.-The Hydrolysis of Platinum Salts Part I. Potassium Platinichloride. By EBEN HENRY ARCHIBALD . . 1104 CXXV1.-Studies in Catalysis. Part XIV. The Mechanism of the Inversion of Sucrose. By CATHERINE MARGARET JOSES and WILLIAM CUDXORE MCCULLAGH LEWIS . . 1120 CXXVI1.-The Preparation of Guanidine by the Interaction of Dicyanodiamide and Ammonium Thiocyanate. By EMIL ALPHONSE WERNER and JAMES BELL . . 1133 CXXVII1.-The Synthesis of some Nitro-derivatives of Toluene.By OSCAR LISLE BRADY and PERCY NOEL WILLIAXS . 1137 CXX1X.-Studies in Ring Formation. Part 111. The Coii-densation of Aromatic Amines with a- and /3-Diketones and with 4 4’-Diacetyldiphenyl. By CLARENCE VICTOR FERHISS and EUSTACE EBENEZER TURNER . . 1140 PAGE its Derivatives. By TARINI CHARAN CHAUDHURI . . 1081 CONTENTS. xi PAGE CXXX.-The Constitution of Catechin. Part 11. By MAXI-MILIAN NIERENSTEIN . . 1151 EMIL FISCHER MEMORIAL LECTURE. By Dr. M. 0. FORSTER, F.R.S. . . 1157 CXXX1.-Studies in Substituted Quaternary Azonium Com-pounds containing an Asymmetric Nitrogen Atom. Part 111. Resolution of Phenylmethylethylazonium Phenyl-benzylpropylazonium and Phenylbenzylallylazonium Iodides into Optically Active Components.By BAWA KARTAR SINGH . . 1202 CXXXI1.-The Preparation and Characterisation of Ethylene-bromohydrin. By JOHN READ and REXFORD GEORQE HOOK 1214 CXXXII1.-The Propagation of Flame in Mixtures of Methane and Air. Part 11. Vertical Propagation. Part 111. Propagation in Currents of the Mixtures. By WALTER MASON and RICHARD VERNON WHEELER . . 1227 CXXX1V.-The Oxidising Properties of Sulphur Dioxide. Part 11. Iron Phosphates. By WxLrufii WARDLAW, SIDSEY RAYMOND CARTER and FEANCIS HERBERT CLEWEI . 1241 CXXXV.-The Alcohols of the Hydroaromatic and Terpene Series. Part 111. isoPulego1. By ROBERT HOWSON PICKARD HAROLD HUNTER WILLIAM LEWCOCK and HANNAH SMITH DE PENNINGTON . 1248 CXXXV1.-Some New Azopyrazoloncs and Allied Compounds.By KENNETHERBERT SAUNDERS . . 1264 CXXXVI1.-The Action of Aminee on Trinitrophenylmethyl-nitroamine. By THOMAS CAMPBELL JAMES JAMES IVOR MORGAN JONES and ROBERT TLLTYD LEWIS . . 1273 CXXXVII1.-The Influence of Hydrogen Sulphide on the Occlusion of Hydrogen by Palladium. Part 11. By EDWARD BRADFORD MAXTED . . 1280 CXXX1X.-Catalysis in the Hydrolysis of Esters by Infra-red Radiation. By ERIC KEIGHTLEY RIDEAL and JAMES ARTHUR HAWKINS . . 1288 CXL.-The Action of Chlorine on 3 5-Dichloro-1 l-dimethyl-A2:4-cycZohexadiene. By LEONARD ERIC HINKEL . . 1296 CXL1.-The Effect of Asymmetry. A Study in Crystal Structure. By THOMAS VIPOND BARKER and MARY WIN-EARLS PORTER . . 1303 CXLII. -Studies on Hypophosphorous Acid. Part 11. Its CXLII1.-Modification and Extension of the Friedel and CXL1V.-The Freezing Point of Wet Benzene and the Influence Reaction with Iodine.By ALEC DUNCAN MITCHELL . . 1322 Crafts’ Reaction. Part I. By JRANENDRA NATH RAY . 1335 of Drying Agents. By NEvrL VINCENT SIDGWICR . . 134 xii CONTENTS. CXLV.-Studies in the Acenaphthene Series. Part I. The Conversion of o-Nitroamines into iso-Oxadiazole Oxides. By FREDERICK MAURICE ROWE and JOHN STANLEY HERBERT DAVJEB . . 1344 CXLV1.-Diethylerietriamine and Triethylenetetramine. By ROBERT GEORGE FARGHER . . 1351 CXLVI1.-The Constitution of Carbamides. Part XIII. The Constitution of Cyanic Acid and the Formation of Urea from the Interaction of Ammonia and Cyanic Acid at Low Temperatures. By EMIL ALPHONSE WERNER and WILLIAM ROBERT FEARON . . . 1356 CXLVII1.-The Chemistry of Polycyclic Structures in Relation to their Homocyclic Unsaturated Isomerides.Part I. Some Derivatives of cycZoPentene and clicycZoPentane. By ERNEST HAROLD FARMER and CHRISTOPHER KELK INGOLD . 1362 CXL1X.-A New Type of Compound containing Arsenic. By GEORGE JOSEPH BURROWS and EUSTACE EBENEZER TURNER . 1373 CL.-Derivatives of Phenyldihydroresorcin. By ALEXANDER JOEKN BOYD PERCY HERBERT CLIFFORD and MAURICE ERNEST PROBERT . 1383 CL1.-The Electrical Conductivity of Potassium Sodium and Barium Chlorides in Mixtures of Pyridine and Water. By JNANENDRA CHANDRA GHOSH . . 1390 CLIL-The System Benzene-Ethyl Alcohol-Water between + 25" and -5'. By NEVIL VINCENT SIDGWICR and WILLIAM JAMES SPURRELL . . 1397 CLII.1.-The Catalytic Action of Iodine in Sulphonation.Part I. By J~~ANENDRA NATH RAY and MANIK LAL DEY . 1405 CL1V.-The Resolution of the Keto-dilactone of Benzophenone-2 4 2' 4'-tetracarboxylic Acid. By WILLIAM HOBSON MILLS and CHARLES REYNOLDB NODDER . . 140'7 CLV.-The Preparation and Physical Properties of Carbonyl Chloride. By RALPH HALL ATKINSON CHARLES THOMAS HEYCOCK and SIR WILLIAM JACKSON POPE . . 1410 CLV1.-0- and p-Tolueneazoglyoxalines. By FRANK LEE PYMAN and LEONARD ALLAN RAVALD . 1426 CLVI1.-The Sulphonation of Glyoxalines. By FRANK LEE PYMAN and LEONARD ALLAN RAVALU . . 1429 CLVII1.-The Velocity of Decomposition of High Explosives in a Vacuum. Part I. By KOBERT CROSBIE FARMER . 1432 C1LIX.-The Preparation of Pure Carbon Dioxide. By ROBERT CROSBIE FARMER . . 1446 CLX.-Triphenylarsine and Diphenylarsenious Salts.By SIR WILLIAM JACKSON POPE and EUSTACE EBENEZER TURNER . 1447 PAG ... CONTENTS. x111 1'AG E CLXI. -Interaction of Ethylene and Selenium Monochloride. By HAROLD WILLIAM BAUBOR CHARLES STANLEY GIBSON, and SIR WILLIAM JACKSON POPE . . 1453 CLXI1.-Researches on Residual Affinity amd Co-ordination. Part 11. Acetylacetones of Selenium and Tellurium. By GILBERT T. MORGAN and HARRY DUGALD KEITH DREW . 1456 CLXII1.-The Formation and Reactions of Imino-compounds. Part XX. The Condensation of Aldehydes with Cyano-acetamide. By JAMES NELSON EDMUND DAY and JOCELYN FIELD THORPE . . 1465 CLXIV.-The Constitution of Polysaccharides. Part I. The Relationship of Inulin to Fructose. By JAMES COLQUHOUN IRVINE and ETTIE STEWART STEELE .. 1474 ULXV.-The Constitution of Polysaccharides. Part 11. The Conversion of Cellulose into Glucose. By JAMES COLQUROUN IRVINE and CHARLES WILLIAM SOUTAR . . 1489 CLXV1.-The Influence of Lead on the Catalytic Activity of Platinum. By EDWARD BRADFORD MAXTED . . 1501 CLXVI1.-The Investigation of Sodium Oleate Solutions in the Three Physical States of Curd Gel and Sol. By MARY EVELYN LAING and JAMES WILLIAM MCBAIN . . . 1506 CLXVII1.-A New Method for the Preparation of 2 :4-Di-hydroxy- and 2 4 4'-Trihydroxy-benzophenone and some Observations relating to the Hoesch Reaction. By HENRY STEPHEN . . 1529 CLX1X.-Studies in tho Coumaranone Series. Part I. The Preparation of 4- 5- and 6-Methylcoumaran-2-ones and some Derivatives of 0- m- and p-Tolyloxyacetic Acids.By LUCY HIWINBOTHAM and HENRY STEPHEN . . 1534 CLXX.-Carbazole-blue and Carbazole-violet. By MAURICE COPISAROW. . . 1542 CLXX1.-The Cganine Dyes. Part 111. The Constitution of Pinacyanol. By WILLIAM HOBSON MILLS and FRANCES MARY HAMER . . 1550 CLXXI1.-The Coagulation of Gold Hydrosols by Electrolytes. The Change in Colour Influence of Temperature and Reproducibility of the Hydrosol. By J~ANENDRA NATH MUKHERJEE and BASIL CONSTANTINE PAPACONSTANTINOU . 1563 Part I. The ar-Dihydro-a-naphthylamines and their Derivatives. By FREDERICK MAURICE ROWE and ESTHER LEVIN . . 1574 CLXX1V.-The Formation and Stability of spiro-Compounds. Part 111. spiro-Compounds from cycZoPentane. By OSCAR BECKER and JOCELYN FIELD THORPE . . . 1579 CLXXII1.-Studies in the Dihydronaphthalene Series xiv CONTENTS. PAGE CLXXV.-Disodium Hydrogen Phosphate Dodecahydrate. By D A ~ I E L LLEWELLYN HAMMICK HECTOR KENNETH GOADBY, and HENRY BOOTH . . 1589 CLXXV1.-The Preparation of Ethyl Iodide. By BEATRICE ELIZABETHA HUNT . . 1592 CLXXVIL-Studies in the Ohroman Series. Part I. By ANNIE GREENWOOD and MAXIMILIAN NIERENSTEIN . * 1594 CLXXVI JI. -S tudies on the Dependence of Optical Rotatory Power on Chemical Constitution. Part 111. 1 4-Naphthylenebisiminocamphor. By BAWA HARTAR SINGH and MAHAN SINGH . . 1599 CLXX1X.-The Permeability of Glass to Iodine and Bromine Vapours. By JAMES BRIERLEY FIRTH . . 1602 CLXXX.-The Velocity of Decomposition of High Explosives in a Vacuum. Part 11. Trinitrophenylmethylnitroamine (Tetryl). By ROBERT CROSBIE FARMER . . 1603 CLXXX1.-The Formation of 2 3 6-Trinitrotoluene in the Nitration of Toluene. By ROYSTON BARRY DREW . . 1615 CLXXXI1.-Hgenanchin and other Constituents of Hyenanche globosa. By THOMAS ANDERSON HENRY . . 1619 OBITUARY NOTICES . . 162