J O U R N A L OF THE CHEMlICAL SOCIETY. Qammitiee af @nbiicntion : Chairma~a N. V. SIDGWICK M.A. Sc.D. F.R.S. H. B. BAKER C.B.E. D.Sc. F.E.S. E. C. C. BALY C.B.E. F.R.S. H. BASSETT D.Sc. Ph.D. 0. L. BRADY D.Sc. A. W. CROSSLEY C.M.G. C.E.E., F. G. DONNAN C.B.E. &LA. F.:R.S. H. W. DUDLEY O.B.E. M.Sc. Ph.D. U. R. EVANS M.A. J. J. Fox O.B.E. DSc. C. S. GIBSON O.B.E. &LA. A. J. GEEENAWAY F. I.C. 1. 11. HEILBRON D.S.O. D.Sc. F.R.S. T. A. HENRY D.Sc. I C. I<. INGOLD D.Sc. F.R.S. H. MCCOMBIE D.S.O. M.C. D.Sc. J. 'I. 0. MASSON M.B.E. D.Sc. W. H. XILLS Sc.D. F.R.S. T. S. MOORE &LA. E.,Sc. G. T. MORQAN O.B.E. D.Sc. F.R.S. J. R. PARTINGTOK M.B.E. D.Sc. J. C. PHILIP O.R.E. D.Sc. F.R.S. R. H. P ~ c ~ i i n n D.Sc. F.R.S. T. S. PRICE O.K.E.n.Sc. F.R.S. F. L. PYMAN D.Sc. F.R.S. J. F. THORPE C.B.E. D.Sc. F.R.S. w. P. TYYSSE n.sc. F.R.S. 6Ebitox : CLAREFCE SMITE D.Sc. JIARGAILET LE PLA R.&. 1925 Vol. CXXVII. Part I. pp. 1-1491. ~ - _ _ - _ _ _ -IIONDOh': GURNEY & JACESON 33 PATERNOSTER ROW E.C. 4. 1935 PRINTED IN GREAT BRITAIN BY RICHARD CLAY & SONS LIMITED, BUNGAY SUFFOLK C O N T E N T S PAPERS COMlklUNICATED TO THE CHEMICAL SOCIETY. PAQB 1.-The So-called Poisoning of Oxidking Catalysts. By CULES MOUEEU and CHARLES DUFEAISSE . . 1 11.-A Fractionating Column with Moving Parfs. By JAMES ECRRFL~LEY MY= and W m JACOB JONES . . 4 111.-The Absorption Spectra of Various Aldehydes and Ketones and some of their Derived Compounds. By JOHN EDWABD Poav~s . . 9 1V.-The Ignition of Gases.Part V. Ignition by Induct-ance Sparks. Mixtures of the Paraffins with Air. By RICHABD VEBNON WHEELER . . 14 V.-The Partial Formaldehyde Vapour Pressures of Aqueous Solutions of Formaldehyde. Part I. By ETHELBERT Wrr.rallm BLAIR and WIL~UD LEDBURY . . 26 VI.-The Detection of Methylamine in Presence of Excess VI1.-Nitro-derivatives of 0-Cresol. By GEORGE PHILIP GIBSON . . 42 VIII.-LimitR for the Propagation of Flame in Inflam-mable Gas-& Mixtures. Part 11. Mixtures of More than One Gw and Air. By ALBEBT GEEVILLE WHITE . 48 IX.-Solubility of Bi-bivalent Salts in Solutions Containing a Common Ion. By OSWALD JAMES WALKER . . 61 X.-Organic Compounds of Arsenic. Part 11. Derivatives of the Arsenic Analogue of Carbazole. By JOHN ALFRED AESCHLJBIA" NORMAN DEBWSTER LEES NIAL PATRICK MCCLELAND a d GEORGE NOEMAN NICELIN .. 66 XI.-Synthesis of Arachidic Acid and some Long-chain Compounds. By NEIL K. ADAM and JOSEPE W. W. DYEB . . 70 XI1.-The Adsorption of Catalytically Poisonous Metals by Plafinum. Part I. The Adsorption of Lead and Part IV. Spectra of Explmions of Gases containing Hydrogen, Carbon Nitrogen and Oxygen. By WILLI~M EDWABD GARNEB and SIDNEY WALTER SATJNDERS . . . 77 of Ammonia. By P. A. VALTON . . # Mercury. By EDWARD BRADFORD MAXTED . . 73 XII1.-The Explosion of Acetylene and Nitrogen iv CONTENTS. XIV.-Remtions of Displacement in the Tropic Acid Group. Part I. By ALEX. MCKENZIE and ROBERT CAMPBELL STRATHERN . XV.-Preparation of Quaternary Hydrocarbons. By EDWARD RUSSELL T~OTMAN .XV1.-Transformation of Mandelonitrile to Mandeloiso-nitrile. By CHARLES EDMUND WOOD and HAROLD SAMUELILLEY By FREDERICK GEORGE SOPER Part 11. By FORSYTH JAMES WILSON and ARCHIBALD BARCLAY CRAWFORD Studies in the Composi-tion of Coal. By FREDERICK VINCENT TIDESWELL and RICHARD VERNON WHEELER . XX.-The Oxidation of Banded Bituminous Coal at Low Temperatures. Studies in the Composition of Coal. By WILFRJD FRANCIS and RICHARD VERNON WHEELER . Studies in the Com-position of Coal. By FREDERICK VINCENT TIDESWEI~L and RICHARD VERNON WHEELER . XXI1.-The Chemisttry of Lignin. Part 11. A Comparison of Lignins Derived from Various Woods. By WALTER JAMES POWELL and HENRY WHITTAKER . XXII1.-A Redetermination of the Atomic Weight of Bromine.The Inseparability of the Isotopes by Fractional Crystallisation. By PERCY LUCOCK ROBIN-SON and HENRY VINCENT AIRD BRISCOE XX1V.-The Use of Fused Borax in the Determination of the Atomic Weight of Boron. By HENRY VINCENT AIRD BRISCOE PERCY LUCOCK ROBINSON and GEORGE EDWARD STEPHENSON . XXV.-The Sulphur Compounds of Kimmeridge ShaIe Oil. Part I. By FREDERICK CHALLENGER JAMES RICHARD ASHWOR~ JINKS and JOHN HASLAM XXV1.-A Synthesis of Pyrylium Salts of Anthocyanidin Type. Part V. The Synthesis of Cyanidin Chloride and of Delphinidin Chloride. By DAVID DOIG PRATT and ROBERT ROBINSON . XXVII.-Synthesis of certain Higher Aliphatic Compounds. Part I. A Synthesis of Lactarinic Acid and of Oleic Acid. By GERTRUDE MAUD ROBINSON and ROBERT ROBINSON XVI1.-The Hydrolysis of Bcylchloroamines in Water.XVII1.-The Action of Amines on Semicarbazones. X1X.-Banded Bituminous Coal. XX1.-On h a i n and its Oxidation. . PAGE 82 58 95 98 103 110 112 125 132 138 150 162 166 17 CI0"TS. v PAQB XXVII1.-A Synthesis of Myricetin and of a Galangin Monomethyl Ether Occurring in Galanga Root. By JAN KALFF and ROBERT ROBINSON XX1X.-Researches on Residual Affinity and Co-ordination. Part XXIII. Interactions of Trimethylstibine and Platinic and Palladous Chlorides. By GILBERT T. MORGAN and VICTOR EMMANUEL YARSLEY . SXX.-cry-Dialdehydopropane-pp-dicarboxylic Acid and ay-Dialdehydopropanene/3-carboxylic Acid. By WILLIAM HEM~Y PERKIN jun. and HERBERT SHEPPARD PINK . XXX1.-New Synthesis of the Meconines.By GEORGE ALFRED EDWARDS WILLIAM HENRY PERKIN jun. and FRANCIS WILBERT STOYLE XXXI1.-Method of Measuring the Reduction Potentials of Quinhydrones. By EIXAR BIILMANN A. LANGSETH JENSEN and KAI 0. PEDERSEN XXXII1.-Hydrolysis of the d-Glucosides of d- and I-Borneo1 with Emulsin. By STOTHERD MITCHELL . XXXIV.-Some Co-ordinated Compounds of the Alkali Metals. By NEVIL VINCENT SIDCWICK and SYDNEY GLENN PRESTON PLANT . XXXV.-Reduction of the Carbocyanines. By FRANCES MLRY HAMER . XXXV1.-Fission of the Pyridine Nucleus during Reduction. Part 11. The Preparation of Glutardialdoxime. By BRIAN DUNCAN SHAW . XXXVI1.-The Action of Bromine on Sodium and Silver hides. By DOUGLAS ARTHUR SPENCER . XXXVII1.-The Constitution of Disulphoxides. Part 11. By CECIL JAMES MILLER and SAMUEL SMILES XX X IX .-Resolution of C hlorosulp h oace t ic Acid into its Optically Active Components.By HILMAR JOHANNES BACKER and WILHELM GERARD BURGERS . XL.-The Rotatory Dispersive Power of Organic Compounds. Part XIV. Simple Dispersion in 1 -MethylcycZohexyl-idene-4-acetic Acid. By EVAX MATTHEW RICHARDS and SL1.-The Electrical Explosion of Tungsten Wires. By HENRY VINCENT AIRD BRISCOE PERCY LUCOCK ROBIN-SON and GEORGE EDWARD STEPRENSON XLI1.-Physostigmine (Eserine). Part 111. By EDGAR STEDMAN and GEORGE BARGER . . THOMAS MARTIN LOWRY . . 181 184 191 195 199 208 209 211 215 216 224 233 238 240 24 vi COHTEH"8. XLII1.-The Action of Light on the Ferrous Ferric Iodine Iodide Equilibrium. By ERIC KEIGHTLEY RIDEAL and EDWARD GARDNER WILLIAMS .XL1V.-The Condensation of Phenylethylamine with s-Di-chlorodimethyl Ether. By WALLACE FRANK SHORT . XLV.-New Halogen Derivatives of Camphor. Part VI. p-Bromocamphor-a-sulphonic Acid. Part VII. The Constitution of the Reychler Series of Camphor-mlphonic Acids. Experiments on Chlorosulphoxides. By HENRY BTZRGESS and THOMAS M~RTIN LOWRY. XLVI.-Conversion of Amino-acids into Tertiary Amino-alcohols. By ALEX. MCKENZIE and GEORGE OGILVIE WILLS . XLVI1.-The Action of Caustic Alkali on a-Bromo-a-ethyl-butyrylcarbamide. By GEOME NEWBEBY XLVIII.-The Direct Combination of Ethylenic Hydro-carbons with Hydrogen Sulphites. By ISRAEL KOLKER and ARTHUR LAPWORTH . . XL1X.-A Method of Measuring the Dielectric Constants of Liquids.By LEONABD ALFRED SAYCE and HENRY VINCENT AIRD BRISCOE . . L.-Studies in Electro-endosmosis. Part III. By &ED FAIRBROTHER and HAROLD MASTIN . L1.-A Comparison between the Homogeneous Thermal Decomposition of Nitrous Oxide and its Heterogeneous Catalytic Decomposition on the Surface of Platinum. By CYRIL NORMAN HINSHELWOOD and WES Ross LI1.-The Hydrolytic Decomposition of Phosphorus Tri-chloride. By ALEC DUNCAN MITCHELL . LIE-The Heats of Solution and of Decomposition of Chlorine Dioxide. By HENRY BOOTH and EDMUXD JOHN BOWEN . LIV.4yoscopic Measurements with Nitrobenzene. Part In. Equilibrium in Nitrobenzene Solution. By FREDERICB STANLEY BROWN . LV.-Constitutional Studies in the Monocarboxylic Acids Derived from Sugars. Part In.The Isomeric Tetra-methyl Galactonolactones and Trimethyl Arabono-lactones. By JOHN PRYDE EDM-UND LANGLEY HIRST, and ROBERT WILLIAM HUMPRREYS . LV1.-The Constitution of the Normal Monosaccharides. Part 11. Arabinose. By EDWD LANGLEY HIRST and GEORQE JAMES ROBERTSON . . PRICHARD . PAOB 258 269 271 283 295 307 315 322 327 336 342 345 348 35 CONTENTS. Vii PAQP LVII.-Synthesis of Derivatives of 7-habinuse. By STANLEY BAKER and WALTER NORMAN HAWORTEI . LvpII.-Phenyl Benzyl Diketone and some Derivatives. By THOMAS ~~~LKIN and ROBERT ROBINSON LIX.-The Additive Formation of Four-membered Rings. Part VI. The Addition of Azo-compounds to Ethylenes and some Transformations of the Dimethylene-1 2-di-imine Ring. By CHRISTOPEER KELK INUOLD and STANUEY Dooaus WEAVEB .LX.-The Conditions Underlying the Formation of Un-saturated and Qclic Compounds from Halogenated Open-chain Derivatives. Part VI. Products Derived from Halogenated a-Methylglutaric Acids. By CHRIS-LX1.-Investigations on the Dependence of Rotatory Power on Chemical Constitution. Part XXIV. Further Ex-periments on the Walden Inversion. By JOSEPH KENYON HENRY PHILLWS and HAROLD GEOME TnaLEY . LXII.-!I%e Relative Rates of Catalytic Hydrogenation of Different Types of Unsaturated Compounds. Part I. Aliphatic Ethylenic Derivatives. By S. V. LEBEDEV, G. G. KOBWSKY and A. 0. YAKWCHIK LXIII.-!l%e Reactions of Sodium Mono- Di- and Tri-sulphides with 1 -Chloro-2-nitro- 1 -Chloro-4-nitro- and 1 4-Dichloro-2-nitro-benzene.By HERBERT HENRY HODQSON and JAMES HENRY W ~ O N . LXIV.-Fu.rther Experiments on the Periodic Dissolution of Metals. By ERNEST SYDNEY HEDGES and Jaarrcs EC~ERSLEYMYERS . . . LXV.-The Addition of Ethyl Malonate to Anils. By EDWARD JOHNSON WAYNE and J m s BEREND COHEN LXVI.-The Chemistry of the Glutaconic Acids. Part XVIII. Three-carbon Tautomerism in the cyclopro-pane Series. Part N. By FRANK ROBERT Goss, CHRISTOPHIE~ KELK INGOLD and JOCELYN FIELD LXVII.-The Correlation of Additive Reactions with Tauto-meric Change. Part IV. The H e c t of Polar Con-ditions on Reversibility. By EDITH HILDA INQOLD LXVIII.-The Mechamism of Kolbe's Electrwynthesis. By RALPH EDWABD GIBSON . . . TOPHEB KELK INGOLD . . THOWE . . (USHERWOOD) . . 365 369 378 387 399 417 440 445 450 460 449 47 viii comms.LXIX .-The Diffusion-potential and Transport Number of Hydrochloric Acid in Concentrated Solution. By SYDNEY RAYMOND CARTER and FREDERICK MEASHAM LEA . NOTES .-Reduction of Aromatic Nitro-compounds. By RALPH WINTON WEST . Some Metallic Couples decomposing Water at the Ordinary Temperature. By ERNEST SYDNEY HEDGES and JAMES ECKERSLEY MYERS . Crystalline Cuprous Bromide. By DENNIS BROOK BRIMS The Molecular Weight of Cholesterol. By JAMES RIDDICK PARTINGTON and SIDNEY KEENLYSIDE TWEEDY . 2-Nitro-m-cresol and 2-Amino-m-cresol. By HERBERT HENRY HODGSON and HERBERT GREENSMITH BEARD . LXX.-The Influence of Acid Concentration on the Oxidation-Reduction Potential of Cuprous and Cupric Chlorides. By SYDNEY RAYMOND CARTER and FREDERICK f i s m LEA LXX1.-The Action of Light on Chlorine Dioxide.By HENRY BOOTH and EDMUND JOHN BOWEN LXXII.-The Nature of the Alternating Effect in Carbon Chains. Part I. The Directive Influence of the Nitroso-group in Aromatic Substitution. By CHRXSTOPHER KEm INGOLD . LXXII1.-The Synthesis of Glycols from Atrolactinic Acid. By ROBERT ROGER . LXX1V.-The Preparation of Pure Methyl Alcohol. By HAROLD H~RTLEY and HUBWHREY RIVAZ RAIKES . LXXV.-Studies of Equilibrium in Systems of the Type A&(SO,),-M"S0,-H,O. Part I. Aluminium Sulphate-Copper Sulphate-Water and Aluminium Sulphate-Manganous Sulphate-Water a t 30". By ROBERT M h m CAVEN and THOMAS CORLETT ETCHELL LXXVI.-Interactions of Tellurium Tetrachloride and Acetic Anhydride.By GILBERT T. MORGAN and ELARRY DTJGALD KEITH DREW . LXXVI1.-The Influence of Valency Direction on the Dissociation Constants of Dibasic Acids. By C~AUDE HYUN SPIERS and JOCELYN FIELD TEORPE . LXXVIII.-6-Chlorophenoxarsine. By EUSTACE EBENEZER TURNER and ~ T H T J R BRAXTON SHEPPARD . LXX1X.-A Determination of the Melting and Transition Points of Potassium Dichromate. By PERCY LUCOCK ROBINSON GEORGE EDWARD STEPHENSON and HENRY VLNCENT AIRD BRISCOE . . PAQE 487 494 495 496 496 498 499 510 513 51 8 524 527 531 538 544 54 CONTENTS. ix PAGE LXXX.-!I%e Reactivity of Antimony Halides with Certain Aromatic Compounds. Part II. By EXNEST VANSTONE LXXXT.-The Cryoscopic Method for Adsorption. By HENBY LORIMER RICHAILDSON and PHILIP WILFXD ROBEBTSON .. Part I. Nitration of Derivatives of p-Resorcylaldehyde. By MYSOBE GURU ~IUNIVAS BAo C~LLURAYAHA S m , and MYSORE SESHA IYENGAIZ . . T,XXI.-Syntheses of Substituted Succinic Acids con-taining Aromatic Residues. By WILSON BAKEB and LXIZlZrV.-Ring-chain Tmtomerism. Part XII. Deriv-atives of pp-Dimethyl-a-ethylglutaric Acid. By GEOR~E ARMAND ROBERT KON LAURENCE FREDEREK S m , and JOCELYN FIELD THOBPE . LXXXV.-Tautomerism of Amidines. Part V. Methyl-ation of Glyoxalines by Diazomethane. Bromination of 4(or 6)-PhenylglyoxaJine. By WILLTAM GREENWOOD FOB~PTH and FRANK LEE PYMAN LXXXVI.-!I'he Relation of Pilocarpidine to Pilocarpine. Synthesis of 1 4- and 1 5-Dimethylglyoxaline. By RICIKARD BUBTLES FRANK LEE PYMAN and JAMES ROYLANCE.. LXXXVI1.-An X-Ray Investigation of Saturated Aliphatic Ketones. By WILLIAM BRISTOW SAW and GEORGE S- . LXXXVIII.-Further X-Ray Measurements on Long-chain Compounds (n-Hydrocarbom). By ALEX. M&EB and WILLLOI BIZISTOW SAVILLE . LXXXTX.-The Rotatory Dispersive Power of Organic Com-pounds. Part XV. Borneol Camphor and Camphor-quinone. The Origin of Complex and Anomalous Rotatory Dispersion. By THOMAS MABTI-N LOWBY and JOHNOUTBAMC~~~~~ER . XC.-The Chemistry of the Three-carbon System. Part III. The a p p y Change in Unsaturated Acids. By GEORGE ABMAXD ROBERT KON and REGINALD PATELICK Iir~sl.ree~ XC1.-A Method of Determining the Presmce or Absence of Complex Salts or Ions in Dilute Aqueous Solution. By Wna,~~nr -TON PATTERSON and JOHN DUCKETT .XCII.4tudies on Starch. Part II. The Constitution of Polymerised Amylose Amylopectin and their Deriv-ativea. By ARTHUR ROBERT LING and DINSHAW RATTONJI Nmn . 0 8 0 0 T,XXXIT.-Substitution in Resorcinol Derivatives. hT'J€UB LAPWOBTE . . 550 553 556 560 567 573 581 591 599 604 616 624 62 X CONTENTS. XCIII.-Studies on Starch. Part III. The Nature and the Genesis of the Stable Dextrin and of the Maltodextrins. By ARTHUR ROBERT LINQ and DZNSHAW RATTONJI NANJI . . . . XCIV.-Studies on Sfarch. Part IV. The Nature of the Amylo-hemicellulose Constituent of Certain Starches. By ARTHUR ROBEBT LIXQ and DINSHAW RATTONJI NmJI . . . . . . XCV.-The Thermal Decomposition of Nitrogen Pentoxide. By HERBERT S. HIRST . XCVI.-Limits for the Propagation of Flame in Inflammable Gas-& Mixtures.Part III. The Effect of Temperature on the Limifs. By ALBERT GREV~LLE WHITE . . XCVIL-Styrylbenzopyrylium Salts. Part IV. y-Styryl Derivatives of 5 'I-Dihydrorrg- and 5 7-Dimethoxy-2-phenyl-4-methylbenzopyrylium Chloride. By GEORQE HUGH WALKER and ISIDOR MORRIS HEILBRON XCWIC.-Styrylbenzopyrylium Salts. Part V. Distyryl Derivatives of '7-Hydroxy-2 4-di1nethylbenzopyrylium Chloride. By Isrooa MORIU~ HEILBRON GEORGE HUGH WALKER and JOHANNES SYBMDT BUCK . . XCIX.-A Redetermination of the Atomic Weight of Boron. BY'HENRY VINCENT AIRD BMSCOE and PERCY LUCOCK ROBINSON C.-The Alternation in Molecular Volume of the Normal Monobasio Fatty Acids. By WILLIAM EDWARD GARNER and ERIC BLLITT RYDER .. . CI.-!l%e Interaction of Nitrogen Sulphide and Sulphur : Nitrogen Persulphide. By FRANCIS LAWRY USHEB . CI1.-The Interaction of Sodium Chloride and Alumina. By FRANCIS HERBERT CLEWS . . CII1.-A Synthesis of Oxyberberine. Part I. By WILLJAM HENBY €" jun. JANENDRA NATH RAY and ROBE~T ROBINSON . . C1V.-The Surface Tensions of Aqueous Solutions of Varioua Organic Compounds. By PEWAL ROWLAND EDWARDS CV.-Quantitative Reduction by Hydriodio Acid of Halogenated Malonyl Derivatives. Part IV. The Influence of Substitution in the Amide Group on the h d i v i t y of the Halogen Atom in Bromomalonamide. By RATZH WINTON WEST. . . . Part VIII. The Velocity of Formation of Certain Quaternary Ammonium Sdh. By HAMILTON MCCOMBIE HUGH MEDWYN ROBIPBTS and HAROLD ARCHIBALD SCAR-.CVI.-The Velocity of Reaction in Mixed Solvents. BOBOUGE . . . 0 0 0 PAQE 636 652 667 672 685 690 696 720 730 735 740 744 748 75 CONTENTS. CVI1.-A New Method of Flame Analysis. By OLIVER COLIGNY DE CHARWFLEUR ELLIS and HENRY ROBINSON CVII1.-The Movement of Flame in Closed Vessels. By O ~ E COLIGNY DE CHAMPFTXJR ELLIS and RICHARD ~ o T E s . - ~ - ~ ~ ~ o ~ o ~ ~ o ~ ~ ~ ~ Derivatives. By LESLIE A Qualitative Test for Weak Bases. By ROBERT ROBINSON A New Portable Apparatus for the Analysis of Illuminating and Other Gases. By H ~ H R E Y DESMOND MWRMY . C1X.-The Relationship of Thyroxin to Tryptophan. By C. STANTON HICKS . CX.-The Effect of Colloids in the Displacement of Lead and Copper from their Salts by Zinc.By LEONARD THOMAS MILLER GRAY . . CX1.-The Surface Tensions of Aqueous Phenol Solutions. Part I. Saturabd Solutions. By ARTHUR KJZNNETH GOABD and EBIC KEIGHTLXY RID- . CXI1.-The Photosensitive Pormation of Water from its Elements in the Presence of Chlorine. By RONALD GEOBGE WREYFOBD NORRISH and ERIC KEIGHTLEY RIDEAL . CXIII.-cycloTelluropentanediones Containing Aliphatic and Aromatic Substituents. By GILBERT T. MORGAN and CYR~LJA.XESA~,~,~NTAYLOR . CX1V.-The Interaction of Hydrogen and Carbon Dioxide on the Surface of Platinum. By CHARLES ROSS -CHARD and CYBIL NORMAN HINSHELWOOD . CXV.-Asymmetric Compounds of Quinquevalent Arsenic. By JOHN ALFRED AES-N CXVI.-The Chemistry of the Three-carbon System. Part IV. A Case of Retarded Mobility.By GEORGE ARMAND ROBERT KON and REGINALD PATRICK LINSTEAD CXVI1.-The Photodecomposition of Chlorine Water and of Aqueous Hypochlorous Acid Solutions. Part I. By ARTHUR JOHN ALLMAXD &aCY WALMSLEY CUNLIFFE, and ROBEBT EDWIN WITTON MADDISON CXVIII.-!lXe Composition of the Liquid and Vapour Phases of Mixtures of Glycerol and Water. By MANATHATTAI PICHU IYEB VEITKATARAMA IYER and FRANCIS LAWRY USHEB . CX1X.-The Isomerism of the Oximes. Part XXI. Action of Picryl Chloride and of 2 4-Dinitrochlorobenzene on Aldoximes. By OSUM L. BBBDY and Lorn KLEIN . VERNONWHEELEB . RANDAL RIDGWAY and ROBEBT ROBINSON. . xi PAGE 760 764 767 768 769 77 1 776 780 787 797 806 811 815 822 841 84 xii CONTENTS. CXX.-The Equilibria Underlying the Soap-boiling Pro-cesses.Pure Sodium Palmitate. By JAMES WILLIAM McBm and GUY MONTAGUE LANGDON CXX1.-The Nature of the Alternating Effect in Carbon Chains. Part II. The Directing Influence of the a-Methoxyvinyl Group in Aromatic Substitution. By CHIUSTOPHER KELK INGOLD and EDITH HILDA INGOLD . CXXII .-Br omo- derivatives of m - Hydr oxybenzaldehyde . By HEIXBERT HENRY HODCISON and HERBERT GREENSMITH BEARD . CXX1II.-The Hydrolysis of Iodine as Measured by the Iodine Electrode. By HUMPHREY DESMOND M ~ E L E ~ ~ Y . CXXIV.-The Condensation of P-Chloro- and a-Ethyl-carbonato-propionitriles with Resorcinol. By ERNEST CHAPMAN and HENRY STEPHEN CXXV.-The Labile Nature of the Halogen Atom in Organic Compounds. Past X. The Action of Hydrazine Hydrate on the Halogen Derivatives of a-Nitro-fatty Acids.By ALEXANDER KILLEN M~CBETH and DAVID T R A I L L . CXXVL-The Chemistry of Petroleum. Part I. The Occurrence of Compounds of Sulphur in the Light Distillate from the Crude Oil of Maidan-i-Naftun. By STANLEY FRANCIS BIRCH and WOODFORD STANLEY GOWAN PLUCKNETT NORRIS . CXXVII.-The Structure of the Enolic Forms of p-Keto-esters and @-Diketones. By NEVIL VINCENT SIDGWICK NoTEs.-Ray’s Supposed Triethylene Trisulphide. By GEORGE MACDONALD BENNETT and WIL;L;LBM AMBLER BEBY . The Physiological Action of Certain Benzthiazoles and Mercaptan Derivatives. By ROBERT FEWUS HUNTER . Preparation of L -21- Sulphophenyl- 3-methyl- 5-pyrazolone. By GEORGE REEVES The Micro-estimation of Methoxyl. By JOHN CHARLES SMSTH .Second Report of the International Committee of the Inter-national Union of Pure and Applied Chemistry on the Chemical Elements. International Atomic Weights 1925 Annual General Meeting . Universities as Centres of Chemical Research. Presidential Addreas. Delivered at the Annual General Meeting, March 26th 1925. By WILLIAM PALMER WYNNE D.Sc., F.R.S. . Obituary Noticea . . PAGE 852 870 875 882 885 892 898 907 910 911 91 1 912 913 918 936 95 CONTENTS. ... XU1 PAGE CXXVIII.-Nitro- and Amino-ethoxylutidine. By JOHN NORMAN COLLIE and GERALD BISHOP CXXIX.-Reactions of Triethylphosphine. By JOHN NOR-MA?scoLtIE . CXXX.-Derivatives of Semioxamazide. Part 111. By Fomm JAMES WILSON and ERIC Ckmms PICKERINQ CXXXI.4lour and Molecular Geometry.Part III. A Graphical Presentation of the Theory. By JAMES Mom CXXXII.-Studies in the Benzthiazole Series. Part III. The Pseudo-bases of the E-Substituted Benzthiazole Quaternary Salts. By LESLJE lKms.~n~.r. . CXXXIII.-The Compounds Formed by the Action of Bromine upon Benzaldehydephenylhydrazone. By FREDERICK DANIEL CHATTAWAY and ARTHTJ~ JOHN CXXXTV.-Ring-chain Tautomerism. Part XIII. Three-carbon Ring-chain Tautomerism in a Bridged Ring System. By JOHN W m BAKER CXXXV.-Synthesis of 5 5’-Dibromo-6 6‘-dimethoxy-2 2’-bisoxythionaphthen. By ROLAND BAT.TI G ~ H and EDWARD HOPE . CXXXVI.4ome Aromatic Chlorovinylarsines. By ARTHUR FREDERICK HUNT and EUSTACE EBENEZEB TURNER . CXXXVII.-Tesla-luminescence Spectra. Part V. Some Polynuclear Hydrocarbons.By W m z m HAXCLTON MCVICKER JOSEPH KENNETH MARSH and ALFRED WALTER STEWART . CXXXVIII.-The Mechanism of the Formation of Malachite from Basic Cupric Carbonate. By JACK REGINALD IMNS HEPBURN . CXXXIX.-Periodic Electrochemical Phenomena. By ERNEST SYDNEY HEDGES and JAMES ECKERSLEY MYERS . CXL.-The Photochemical Decomposition of Nitrosyl Chloride. By EDMIMD JOHN BOWEN and JOHN FRED-CXL1.-The Mercuration of Aromatic Substances. Part I. Toluene. By SAMTJEL COFFEY . CXLI1.-A Synthesis of 1 2-Dihydroquinaldine. By FREDERICK ALFRED MASON . CXLII1.-The Hydrates of Calcium Carbonate. By JOHN HUME . CXL1V.-The Interaction of Thiocyanogen with Unsaturated Compounds. By FREDERICK CHALLENGER and moms &OLD B o n . . WALKER ERICK fh4RJ? .962 964 965 967 973 975 985 990 996 999 1007 1013 1026 1029 1032 1036 103 XiV CONTENTS. CXLV.-The Potassium Chlororuthenates and the Co-ordination Number of Ruthenium. By S. H. CLIFFORD BRJGGCS . CXLVI.-The Reaction between Aromatic Aldehydes and Phenanthraquinone in presence of Ammonia. By ANUKUL CHANDRA SIRCAR and NIRMAL CEANDRA GUHA RAY . CXLVI1.-The Measurement of the Dielectric Constants of Liquids. By HERBERT HARRXS . . CXLVII1.-A Solid Antimony Hydride. By EDWARD JOSEPH WEEKS and JOHN GERALD FREDERICK DRUCE CXL1X.-Ring-chain Tautomerism. Part XIV. The Structure of Balbiano's Acid. By EUQENE ROTHSTEIN, ARNOLD STEVENSON and JOCELYN FIELD THOWE . CL.4tudies of Dynamic Isomerism. Part XVII. The Mutarotation of Aluminium Benzoylcamphor.By IRVINE JOHN FA-ER and THOUS MARTIN LOWRY CL1.-" Activated " Graphite as a Sorbent of Oxygen. By DONALD HUGH BANGCHAM and JOHN STAFFORD . . CLI1.-Investigations on the Dependence of Rotatory Power on Chemical Constitution. Part XXV. Three Optic-ally Active Alcohols containing a Phenyl Group and some Esters derived therefrom. By LESLIE FRANK HEWITT and JOSEPH KENYON . CLIII.-The Thermal Decomposition of Ammonia upon Various Surfaces. By CYRIL NORMAN HINSHELWOOD and ROBERT EMMETT BDRK . CLIV.-!I%e Labile Nature of the Halogen Atom in Organic Compounds. Part XI. The Halogenation of Ethyl Acetylsuccinate. By ALEXANDER KILLEN MACBETH and DAVID TRLLILL . CLV.-The Freezing Points of Hydrofluoric Acid. By JOHN DAVID CECIL ANTHONY and LAWSON JOHN HUDLESTON .. CLVI.-A Synthesis of Pyrylium Salts of Anthocyanidin Type. Part VI. Polyhydroxyflavylium Salts related to Chrysin Apigenin Lotoflavin Luteolin Galangin, Fisetin and Morin. By DAVID DOIQ PRATT and ROBERT ROBINSON . CLVI1.-The Action of Hydrogen Chloride on cycloHexyl-ideneazine and on cycloPentylideneazine. By WILLIAM HENRY PERKIN jun. and SYDNEY GLENN PRESTON PLANT . PAGE 1042 1048 1049 1069 1072 1080 1085 1094 1105 1118 1122 1128 113 OONTENTS. xv P4QE CLVIII.-The Additive Formation of Four-membered Rings. Part VII. The Synthesis and Division of some Di-methylene-1 3-oxaimines. By CHRISTOPHER KELK INGOLD . CL1X.-The Explosion of Ammonia with Carbon Monoxide and Oxygen. By JOHN WILLIAM BEESON and JAMES RIDDICK PARTINGTON .CLX.-Aromatic Esters of Acylecgonines. By WILLIAM HJERBEBT GRAY . CLXL-Strychnine and Brucine. Part III. The Position of the Methoxyl Groups in Brucine. By FRANCIS LIONS, WILLIAM HENRY PERKIN jun. and ROBERT ROBINSON CLXI1.-Investigations of the Dependence of Rotatory Power on Chemical Constitution. Part XXVI. Four Alcohols containing the Vinyl Group and some Esters derived therefrom. By JOSEPH KENYON and DOUGLAS ROSEBERY SNELLGROVE . CLXIIL-A Synthesis of Pyrylium Salts of Anthocyanidin Type. Part VII. The Preparation of the Antho-cyanidins with the Aid of 2 4 6-Triacetoxybenzalde-hyde. By DAVID DOIG WTT and ROBERT ROBINSON CLXIV.-A Synthesis of Pyrylium Salts of Anthocyanidin Type. Part VIII. A New Synthesis of Pelargonidin Chloride and of Galanginidin Chloride.By THOU MALKJX and ROBERT ROBINSON . CLXV.-Nitration of the Carbonate and Ethyl Carbonate of m-Hydroxybenzaldehyde. By FREDERICK ALFRED MASON [in part with H. JENgINSON] CLXVI.-The Tautomerism of Dyads. Part 111. The Effect of the Triple Linking on the Reactivity of Neighbouring Atoms. By EDITH HILDA INGOLD . Chemistry at Interfaces. A Lecture delivered before the Chemical Society on February 26th 1925. By SIR W m HARDY M.A.? Sec.R.8. . . . CLXVII.-The Ionimtion of Aromatic Nitro-compounds in Liquid Ammonia. Part I. By (%) MARGARET JOYCE FIELD WIILCAM EDWARD GAENER and CHRIS-TOP- CAIGER SMITH . . . CLXVIII.-The Conditions underlying the Formation of Unsaturated and Cyclic Compounds from Halogenated Open-ohain Derivatives.Part VII. The Influence of the Phenyl Group on the Formation of the CyclOPropene Ring. By WILHELM &XDX and JOCELYN FIELD . ! h O a P E . 1141 1146 1150 1158 1169 1182 1190 1195 1199 1207 1227 123 xvi CONTENTS. CLX1X.-The Directing Influence of the Methanesulphonyl Group. By RICHARD F’RANCIS TWIST and SAMUEL SMILES . CLXX.-3 3-Diethylpentane (Tetraethylmethane). By GILBERT T. MORGAN SYDNEY RAYMOND CARTER and ALBERT E. DUCK . CLXX1.-The Rotatory Dispersive Power of Organic Com-pounds. Part XVI. Halogen Derivatives of Camphor. Optical Superposition in the Camphor Series. By JOHN 0- CUTTER HENRY BURGESS and THOMAS MARTIN LOWRY . CLXXIL-The Molecular Condition of Phenol in Benzene Solution.By JAMES C. pHn;Ip and C. H. DOUGLAS CLXXII1.-Hepto- and Nono-dilactones. By GEORGE MACDONALD BENNETT . CLXXIV.4emicarbazones of Benzoin. Part I. By ISAAC VANCE HOPPER . CLXXV.-The Composition of Starch Iodide. By HUMPHREY DESMOND MURRAY. CLXXVI.-The Formation of d-2 2 4-Trimethylcycb-hexan-3-one- 1 -carboxylic Acid from d-Camphorquinone. By CHARLES STANLEY GIBSON and JOHN LIONEL CLXXVI1.-The Action of Halogens on Phenylhydrazones. Part 11. The Action of Chlorine. By JAMES ERNEST HUMPHRIES HENRY HUMBLE and ROY EVANS By FREDERICK DANIEL CHATTAWAY and GEORGE DAVID PARKES . CLXXIX.-Compoun& of Tervalent Molybdenum. Part 111. New Oxalates. By WILLIAM WARDLAW and WELIAM HENRY PARKER CLXXX .-Bromination of 4’-Amino- 1 -phenyl-5-methyI-benzthiazole and of 1 1-Bisbenzthiazole.By ROBERT FERGUS H ~ E R . CLXXX1.-The Decomposition of Hydrogen Peroxide by Cobaltic Hydroxide. By FREDERICK GERALD TRYHORN and GILBERT JESSOP . CLXXXI1.-or- Acenaphthaquinoline. By JESSIE STEWART CLXXXII1.-The Solubility of Sulphur Dioxide in Water and in Aqueous Solutions of Potassium Chloride and Sodium Sulphate. By JOHN CHRISTOPHER HUDSON . CLARK . SWONSEN . CLXXVII1.-The Action of Azides on Toluquinone. PAQE 1248 1252 1260 1274 1277 1282 1288 1294 1304 1307 1311 1318 1320 1331 133 CON!rENTS. xvii PAQP CLXXXIV.-Low Temperature Oxidation at Charcoal Surfaces. Part I. The Behaviour of Charcoal in the absence of Promoters. By ERIC KEIGHTLEY RIDEAL and WINIFRED MARY WRIGHT .CLXXXV.-The Isomerism of the Oximes. Part XXII. The Configuration of the Aldoximes. By OSCAR L. BRADY and GERALD BISHOP . CLXXXVI.-A Spectroscopic Study of the Combustion of Phosphorus Trioxide and of Hydrogen Phosphide. By CLXXXVI1.-The Action of Phosphorus Pentachloride on 2-isoNitroso- 1 -hydrindones. By ROBERT DOWNS HAWORTH and HERBERT SEEPPARD PINK . CLXXXVIII.-Studies of Dynamic Isomerism. Part XVTII.-The Mechanism of Mutarotstion. By THOU h ! m N LOWRY . . CLXXXIX.-Studies of Dynamic Isomerism. Part XIX. Experiments on the Arrest of Mutarotation of Tetra-methylglucose. By THOMAS MARTIN LOWRY and EVAN M ~ ~ E w RICHARDS . CXC.-The Constitution of Soap Solutions in Presence of Electrolyfxs. Potassium Laurate and Potmsium Chloride. By WIUIAM ~ O R D QUICK .CXC1.-Plant Cuticles. Part I. Modern Plant Cuticles. Studies in the Composition of Coal. By VERNON Horns LEGC and RICHARD VERNON WHEELER . CXCI1.-The Spatial Structure of cycloParafihs. Part I. A New Aspect of Mohr’s Theory and the Isomerism of Decahydronaphthalene. By WILFRED ALAN WIGFITMAN CXCIII.-/3-Piperonylpropion.itrile and some Derived Sub-stances. By WILSON BAKER and ROBERT ROB~SON . CXCIV.-Synthetical Experiments in the isoQuinoline Group Part I. By ROBERT DOWNS HAWORTH and WILLIAM HENRY PERKIN jun.. CXCV.-Synthetical Experiments in the isoQuinoline Group. Part II. By ROBERT DOWNS HAWORTH WILLIAM HENRY PEW jun. and JOHN RANKIN . CXCVI.-Synthetical Experiments in the isoQuinoline Group. Part III. By ROBERT Doms HAWORTH and WILLTAM HENRY PERKIN jun..CXCVII.-Synthetical Experiments in the isoQuinoline Group. Part IV. By ROBERT DOWNS HAWORTH and WILTJABX HENBY PERKIN jun.. Jams ETHEL~US . 1347 1357 1362 1368 137 1 1385 1401 1412 1421 1424 1434 1444 1448 145 xviii CONTENTS. CXCVIII.-Synthesis of 2 3 10 11-Bismethylenedioxy-protoberberine and 6 7 3’ 4’-Bkmethylenedioq-protopapaverine. By JOHAKNES SYBIZANDT BUCK, W m HENRY PERKIN jun. and m o w STEVENS STEVENS CXC1X.-Alcohols of the Hydroaromatic and Terpene Series. Part IV. a- and p-Fenchyl Alcohols and some Esters derived therefrom. By JOSEPH KENYON and &OLD EDWARD MEAD -TON . NoTEs.-The Atomic Volume of Manganese. By A L ~ N N. Molybdenum Pentoxide. By Wnrr;ra~ WARDLAW and FRANK &OLD NICHOLLS .. Chlorobenzthiazole Dibromide. By ROBERT FERGUS HUNTER. A Laboratory Method of Preparing p-Benzoquinone. By REGINALD CRAVEN and WIUIBM ALEXANDER TURNER DUNCAN. Reduction of the Bromoanthraquinones. By EDWARD DE BARRY BARNETT and JAMES WILFRED COOK . The Reduction of Anethole Nitrosochloride by Sfannous Chloride and Hydrochloric Acid. By JOHN BALDWIN SHOESMITH and ROBERT HENRY SLATER . . Oxidations in Turpentine and Olive Oil. By ERNEST WALKER. . . . . . . . CC.-Synthetical Experiments in the Naphthyridine Groups. By JOHN MASSON GULLAND and ROBERT ROBINSON . CCI.-The Rotatory Dispersive Power of Organio Com-pounds. Part XVII. p- and d3ulphonic Derivatives of Camphor. By EVAN M i m w R1-s and T H O U lkL4Rm LOWRY . . . CCII.-Sulphur Sesquioxide.By I s m Voam and JAMES REDDICK PARTINQTON . . . CCIII.-!l%e Parachor and Chemical Constitution. Part I. Polar and Non-polar Valencies in Unsaturated Corn-pounds. By S ~ L SUGDEN JOHN BRENT REED, and HENRY W ~ S . CCIV.-The System Chromium TrioxideBoric Acid-Water. By LIONEL FELIX GILBERT . . . . CCV.-!l!he Dissociation Constants of Selenious Acid. By J m s STUART Wmcox and EDMUND BRYDQES RUDHALL PRIDEAUX . . CAMPBELL . . . PAQB 1462 1472 1487 1487 1488 1489 1489 1490 1491 1493 1503 1514 1525 1541 154 CO2!mENTs* xix PAGE CCVI.-The Interaction of b b o n Dioxide and Hydrogen on the Surface of Tungsten. By Cwrr NO-HINSHELWOOD and CEABLES Ross pB;I(sHBBD CCVII.-The Relation of Homogeneous to Catdy8ed Re-actions.The Catalytic Decomposition of Hydrogen Iodide on the Surface of Gold. By Cwn; NORMAN HINSHELWOOD and CEURLES Ross PRIGHARD . . CCVIII.-The Adsorption of Water from the Gas Phase on P h e Surfam3 of Glass and Platinum. By IVAN ROY MC€€AFFIE and SABS LENHEX CCIX.-A New Method of Diagnosing Potential Optid Activity. Part I. The Optical Activity of Chloro-bromomethandphonic Acid. By Jom READ and ANN MORTIMER MCMATH. CCX.-The Nitration of m-Chlorophenol. By H~BBERT HENBY HODQSON and RUNCIS HABZLY MOORE . CCXI.-Polynucleaz Heterocyclic Aromatic Types. Part II. Some Anhydronium Bases. By JAMES WILSON ARMIT and ROBEBT ROBINSON . CCXII.-The Nitration of m-Meconine. By JNA”DEA NATH RAY and ROBEBT ROBINSON . . . CCXIII.-The System Sodium Sulphitdkdium Hydroxide-Water.By DAIZ~EI LLEWELLYN HAMMICK and JOHN CCXIV.-Oxidation Products of Oleic Acid. Part I. Con-version of Oleic Acid into Dihydroxyshric Acid and the Determination of the Higher Saturated Acids in Mixed Acids from Natural Sources. By aaTHw LAPWORTH and EDWARD NEVILLE MOTTBAM . . CCXV.-The Action of Hydrogen Peroxide on Limonene. By JAMES SWORD . . a n d E i m x ~ S m m m . b 8 CCXVII.-Studies of the Glucoaides. Part III. The Syn-the& of “Thioindican.” By JAMES CELADC and CCXVLII.-Echitami.ne. By JOHN AUGUSTUS GOODSON and CCXIX.-Chenopodium Oil. Part II. The Hydrocarbon Fraction. By THOMAS ANDEBSON HENBY and HUMPHREY PAGET . 8 . CCXX.-isoQuinoline Derivatives. Part IX. Preparation and Reduction of isoQuinoline and ifs Derivatives.By ROBERT FORSYTH CHARLES IQNATIUS KELLY and FRANK LEE PYUN. 8 . . ALEXANDER ChJRBIX . CCXVI.-H~~~O@~KB%. By JOHN THOMPSON MABSH ALEXANDER KILLEN fiCBETH . . . 8 THOMAS &TDEasON HENBY . 1566 1552 1559 1572 1599 1604 1618 1623 1628 1632 1633 1637 1640 1649 165 xx CONTENTS. CCXXI.-The Surface Tensions of Aqueous Phenol Solutions. Part PI. Activity and Surface Tension. By ARTHUR KENNETH GOARD and ERIC KEIGHTLEY RIDE& . CCXXII.-Bromination of Acyl Derivatives of Phenyl-hydrazine. Preparation of 2 4-Dibromophenyhydr-azine. By JAMES EIWEST HUMPHRIES and ROY EVANS CCXXIII.-The Structure of a-Campholytic Acid. A Correction. By JUAN PEDIQE CHARLES CHBNDRASENA, CHILISTOPHER KELK INGOLD and JOCELYN FIELD CCXXIV.-!l!he Formation and Stability of spiro-Com-pounds.Part XII. Further Evidence for the Multi-planaz Configuration of the ycloHeptane Ring. By JOHNW~~AMBAEER . CCXXV.-!Cridentate Groups in Complexes of Tetrahedral and Octahedral Symmetry. By J. D. MLLIN S m . CCXXVI.-The Action of Halogens upon m- and p-Nitro-beddehydephenylhydrazones. By FREDERICK DANTEL CHAITAWAY and ARTHUR JOHN WALKER . CCXXVII.-The Tautomerism of Dyads. Part IV. New Evidence of the Tautomeric Mobility of Oximes. By JOHN PREEDY GRXFFITHS and CFXRXSTOPHER KEIX INGOLD CCXXVIII.-Synthetical Experiments in the isoQuinoline Group. Part V. Synthesis of Substances allied to Oxyberberine. By ROBERT DOWNS HAWORTH WII;LZBM HENRY PERKIN jun. and HERBERT SELEPPARD PINK. CCXXTX.-Reaearches on Sulphuryl Chloride.Part III. The Influence of Catalysts on the Chlorination of Toluene. By OSWALD SILBERRAD CHAS. A. SILBERRAD and BEATRICE PARKE . CCXXX.-Stereoisomeric Azo-dyes. By GILBERT T. MORGAN and DONS GEORGE SKINNER CCXXXI.-Theories of Polar and Non-polar Free -ties. A Practical and Theoretical Reply to some Recent Criticisms and Comparisons. By GEORGE NORAWN BURKHARDT and ARTHUR LAPWORTH CCXXXII.-The Estimation of Arsenic in Organic Com-pounds. By GEORGE NEWBERY . By PEI~CY CORLETT AUSTIN . By LESLIE HENRY ALFRED HOLMES and EUSTACEBENEZER T~RNER !hiORPE . . NOTES.-T,jthium Arc Spectrum for Polarimetric Use. Potassium Antimonoxdate. PAOR 1668 1676 1677 1678 1682 1687 1698 1709 1724 1731 1742 1751 1752 175 CONTENTS.xxi PAQB A Simplified Method of Micro-combustion the Micro-Dennstedt Method. By CASIMIE FUXK and STBNISL~S KON . . CCXXXTTI.-Arylselenoglycollic Acids. By GILBEBT T. MORGAN and WILLIAM HENRY PORRITT CCXXXTV.-Aromatic Derivatives of Germanium. By G ~ E R T T. MORGAN and €€ABBY DUGALD KEITH DREW CCXXXV.-The Stability of Additive Compounds between Esters and Acids. By JAMES KENDALL and JAMES ELIOT BOOGE . CCXXXVI.-Additive Compounds in the Ternary System : Ester-Acid-Water. By JAMES KENDALL and CECIL VICTOR KING . CCXXXVII.-The Preparation of Phthalamic Acids and their Conversion into Anthranilic Acids. By ERNEST CHAPMAN and HENRY STEPHEN . CCXXXVIII.-Derivatives of 8-0-Aminobenzoylvaleric Acid. By MARGARET JOYCE PATERSON and SYDNEY GLENN PRESTON PLANT .CCXXXIX.-Bismuth Dihydride. By EDWARD JOSEPH WEEKS and JOHN GERALD FREDERICK DRUCE . CCXL.-The Nature of the Alternating Effect in Carbon Chains. Part 111. A Comparative Study of the Directive Efficiencies of Oxygen and Nitrogen Atoms in Aromatic Substitution. By ERIC LEIGHTON H o r n s and CHRISTOPHER K E ~ INGOLD . CCXLI.-Syntheses of Disulphoxides. By DAVID TEMPLE-TON GIBSON CECIL JAMES MILLER and SAMUEL SMILES CCXLII.-Studies of Electrolytic Polarisation. Past III. The %ion Layer. By SAMUEL GLBSSTONE . CCXLIII.-The 4- and 5-Nitro-1 2-Dimethylglyoxalines. By VINAYAK KESHAV BHAOWAT and FRANK LEE PYAIAN CCXLIV.-Some Physical Properties of Aniline and its Aqueous Solutions. By 1MBLcom PERCIVAL APPLEBEY and PEMXVAI GLYN DAVIES . CCXLV.-Osmotic Pressure by the Solubility Method in Concentrated Solutions.By MALCOLM PERCIVAL APPLEBEY and PERCIVAL GLYN DAVIES CCXLVI.-Studies on the Walden Inversion. Part IX. The Influence of the Solvent on the Sign of the Product in the Conversion of p-Bromo- f%phenylpropionic Acids into B-Hydmxy- p-phenylpropionamides. By GEOIWE SENTIER and ALLAN MILES WARD . . . 1754 1755 1760 1768 1778 1791 1797 1799 1800 1821 1824 1832 1836 1840 184 xxii CONTFJTTS. CCXLVI1.-The Coloura Produced by the Action of Sulph-uric Acid upon Some Hydrazones. By FREDERICK DANIEL CHATTAWAY STANLEY JOHN IRELAND and ARTHURJOHNwiiLKER . Part XL. Constitution of Manasse’s Hydroxycamphor. By JKumm ONSLOW FORSTER and PRAJAIUM PRABHAS-CCXL1X.-A New Synthesis of Arylazoaldoximes.By =OMAS KENNEDY WALKER . CCL.-Angles of Contact and Polarity of Solid Surfaces. By NEIL K. ADAM and G-EFLT JESSOP . ELI.-The Parachor and Chemical Constitution. Part 11. Geometrical Isomerides. By SAMUEL SUGDEN and HENBY W~TTAKEB. CCLI1.-A New Synthesis of Aldehydes. By HENRY STEPHEN. CCLIII .- p P‘ -Dichloro- and p p ’ -Dibromo-die thy1 Selenides and their Simple Halogen Derivatives. By HUGH CHESTER BELL and CHARLES STANLEY G~BSON . CCL1V.-Reduction Products of the Hydroxyanthra-quinones. Part VI. By ARTHUR GEORGE PERKIN and GEN. YODA . CCLV.-A Wandering of the Acetyl Group during Methyl-ation. By ONRO KUBOTA and ARTHUR GEORGE PER= CCLVI.-Hydrogen and Oxygen Electrode Titrations of Some Dibasic Acids and of Dextrose.By HUBERT THOMAS STANLEY BRITTON . . CCLVI1.-Researches on Residual Affinity and Co-ordin-ation. Part XXIV. Heats of Chelation of Dithiolated Metallic Halides. By GILBERT T. MOMAN SYDNEY RAYMOND CARTER and WILLIAM FINNEMORE -ISON CCLVII1.-The Rotatory Dispersion of Derivatives of Tartaric Acid. Part 11. Acetyl Derivatives. By PERCY CORLETT AUSTIN and JAMES RITCHIE PARK . CCL1X.-The Chemietry of Petroleum. Part 11. The Action of Sodium Hypochlorite on Sulphur Compounds of the Tspes found in Petroleum Distillates. By STANLEY FRANCIS BIRCH and WOODFORD STANLEY Gowm PLUCKNETT NORRIS . CCLX.-The Action of Formic Acid on certain Sesqui-terpenes. By JOHN MONTEATH ROBERTSON CARL ALOYSIUS HE= and GEORGE GERALD HENDEBSON . CCXLVIII.-Studies in the Camphane Series.HANKERSHUKIA . PAGB 1851 1855 1860 1863 1868 1874 1877 1884 1889 1896 1917 1926 1934 194 CONTENTS. CCLXI.-Cryoscopic Measurements with Benzene. By EDWARD RICHBSD JONES and CHARLES R. BUBY . CCLXII.-The Condensed Ternary System Phenol-Water-Salicylic Acid. By CHaaCEs REYNOLDS BAILEY . CCLXIII.-Carboxycamphoranilic Acids. By BEAHAN SINGH and RAM SINGH . CCLXLV.-A Synthesis of Datiscetin. By JAN KALFF and ROBERT ROBINSON . CCLXV.-!l?he Synthesis of certain 2-Styrylchromonol Deriv-atives. By ROBERT ROBINSON and Jmzo SEINODA . CCLXVL-Synthetical Experiments in the isoFlavone Group. Part I. By WILSON BARRR and ROBEBT ROBINSON . CCLXVIL-Oxidation Products of Oleic Acid. Part II. Degradation of Dihydroxystearic Acid.By B a r n LAPWORTH and EDWARD NEVILLE MO~RAM . CCLXVIII.-The Effect of Ultra-violet Light on Dried Hydrogen and Oxygen. By -BERT BRERETON BAKER and MARGARET CARLTON . CCLXIX.-Imino-aryl Ethers. Part III. The Molecular Rearrangement of N - Phenylbenziminophenyl Ether. B~ARTHUBWILLIAMCHA.PMAN . CCLXX.4ubstitution in Derivatives of Quinol Ethers. By LEON RUBENSTEIN . CCLXXI.-!L'he Relative Rates of Conversion of Phenoxy-phenyldichloroarsine and its Chloro-derivatives into Chlorophenoxarsines. By ELWYN ROBERTS and EUSTACEBENEZZC~ TUESER . . CCLXXII.-2-Amino-4 5-dimethylglyoxaline. By [the late] RICHARD BURTLES and FRANK LEE PYBUN . CCLXXII1.-A Synthesis of a-Dicentrine. By ROBERT DOWNS HAWORTH WILLIAM HENRY PERKIN jun. and JOHN R m m . CCLXX1V.-Aminobenzthiazoles.Part I. 1-Anilinobenz-thiazole and its Tolyl Homologuea. By ROBERT FERGUS HUNTER. CCLXXV.-The Amino-4-pyridones. By WILLIAM HAUGH-CCLXXVI.-Researches on Residual Afkity and Co-ordin-ation. Part XXV. A Quadridenfate Group Con-tributing Four Associating Units to Metallic Complexes. By GILBZRT T. MOSGAN and 3. D. MAIN SMITH . TON CROWE . 1947 1951 1966 1968 1973 1981 1987 1990 1992 1998 2004 2012 2018 2023 2028 203 XXiV CONTENTS. CCLXXVI1.-The Synthesis and Reactions of 1 -Aniho-cydopentane- 1 -carboxylic Acid. By SYDNEY GLENN PRESTON PLANT and JOHN ERNEST FACER CCLXXVII1.-The Action of Nitrogen Dioxide on Anthra-cene Derivatives. By EDWARD DE BARRY BARNETT CCLXX1X.-The Constitution of Indian Kamala. Part I.By SIKHIBHUSHAN DUTT . CCLXXX.-The Decomposition of Carbon Monoxide in the Corona due to Alternating Electric Fields. Part I. By MIGUEL CRESPI and ROBERT WINSTANLEY LVNT . CCLXXXI .-Anode Phenomena in the Electrolysis of Potassium Ethyl Malonate. By JOHN B-AITE ROBERTSON . CCLXXXI1.-The Reaction of Bromine with Aliphatic Acids. Catalytic Effect of Acyl Halides. By HERBERT BEN WATSON . CCLXXXII1.-Homologues of 2 2’-Diquinolyl. By EDWARD JOHN VENN CONOLLY CCLXXX1V.-The Thermal Decomposition of Ozone. By ROBERT OWEN GRIFFITH and ANDREW MCKEOWN . CCLXXXV.-The Dissociation Pressures of Hydrated Double Selenates. By JOHN FERGUSON . CCLXXXV1.-Researches on Chromammines. Part 11. Hydroxopentamminochromic Salts and Electrical Con-ductivities of Chromammines.By HERBERT JOSEPH CCLXXXVII .-Electrometric Studies of the Precipitation of Hydroxides. Part I. Precipitation of Magnesium, Manganous Ferrous Cobalt Nickel and Thorium Hydroxides by Use of the Hydrogen Electrode. By HUBERT THOMASTANLEY BRITTON CCLXXXVIII .-Electrometric Studies of the Precipitation of Hydroxides. Part 11. The Precipitation of the Hydroxides of Zinc Chromium Beryllium Aluminium, Bivalent Tin and Zirconium by Use of the Hydrogen Electrode and their Alleged Amphoteric Nature. By HUBERT THOMAS STANLEY BRITTON . CCLXXXIX.-Electrometric Studies of the Precipitation of Hydroxides. Part 111. Precipitation in the Cerite Group of Rare Earths and of Yttrium Hydroxide by Use of the Hydrogen Electrode. By HUBERT THOMAS STANLEY BRITTON . .SEYMOURKING . PAGE 2037 2040 2044 2052 2057 2067 2083 2086 2096 2100 21 10 2120 214 CONTENTS. CCXC.-Electrometric Studies of the Precipitation of Hydroxides. Part IV. Precipita;tion of Mercuric, Cadmium Lead Silver Cupric Uranic and Ferric Hydroxides by Use of the Oxygen Electrode. By HTJBERT THOUS STANLEY BRITTON . CCXC1.-The Interaction of Ethyl Acetoacetate and 0-Hydroxydistyryl Ketones. Part 11. By ISIDOR Mo- HEILBRON THOUS ALFRED FORSTER and ABRAHAM BRUCE WHITWORTH . Part II. The Reactivity of the 2-Methyl Group in the 4-Quh-azolone Series. By ISIDOR MORRIS HEILBRON FRANCIS NOEL KITCHEN EDWARD BURDON Paams and GEORGE DONALD S m o ~ . NOTEs.-hparation of the Phenylcarbamyl Derivatives of Nitrophenols. By Oscm L.BRADY and JACK HaRRLs d-Mannitol from Gardenia turgidu. By -TIN O N S ~ W FORSTER and KESHAVIBH ASWATH NARAIN RAO . CCXCIII.-!T!he Velocity of Benzylation of certain Amines. Part 11. By DAVID HENRY PEACOCK . CCXCIV.-A New Peroxide of Barium. By MARGARET CCXCV.-!I'he Action of Aldehydes on the Grignard Reagent. Part 111. By JOSEPH M B R S m . CCXCVI.-Optical Activity and the Polarity of Substituent Groups. Part II. Menthyl Esters of Substituted Acetic Acids. By HAROLD GORDON RULE and JOHN SMITH . CCXCVI1.-X-Rays and the Constitution of the Hydro-carbons from Parafb Wax. By STEPHEN HBRVEY PIPER DENNIS BROWN and STANLEY DYMENT . CCXCVIII.4onstituents of Myqorum laetum Forst (the " Ngaio "). Part I. By F'REDERICK HENRY MCDOWAIX CCXC1X.-An X-Ray Examination of Maleic and Fumaric Acids.By KATHLEEN YARDLEY . CCC.-Purification of Phosphoric Oxide. By HENRY CCC1.-Determination of Metals Dissolved in Mercury. Rapid Method of Purifying Mercury. By ALEXANDER SWTEE RUSSELL and DEREK CURTIS EVANS CCCI1.-The Alcoholysis of Trinitroanisole and Trinitro-phenetole. By OSCAR L. BRADY and HAROLD V. HORTON . CCXCII.4hemical Reactivity and Conjugation. &ELLTON. WHITAEER . . 2148 2159 2167 2175 2176 2177 2180 2184 2188 2194 2200 2207 2219 2221 223 xxvi c o m m . CCCIII.-!l%e Supposed E’ormation of 1 2 4-Oxadi-imine Rings from Nitroso-compounds and Methylenearyl-amines. By GEORGE NORMAN B-T ARTHUR LAPWORTH and EDWIN BREW ROBINSON . CCC1V.-The Properties and Constitution of Coal Wins.Studies in the Composition of Coal. By WILFRID FRANCIS and RICHARD VERNON WHEELER CCCV.-The Coagulation of a Colloidal Solution by Hydrogen Ions. By ALAN B. WEIR . CCCV1.-The Constitution of the Thionic Acids. By ISRAEL VOGEL . CCCVII.-n”o-Thioanthracene Derivatives. Part 11. Di-anthranyl Disulphide and Dianthranyl Tetrasulphide. By WILLIAM HERBERT COOKE ISIDOR MORRIS HEIL-BRON and GEORQE HUGH WALKER . CCCVIII.-The Reaction between Sodium Hypobromite and Carbamide. By MAXWELL BRUCE DONALD . CCC1X.-Nitrosation of Phenols. Part 11. Nitrosation of 3-Bromo- 2-Bromo- 3-Iodo- and 2-Iodo-phenol. Evidence for the Nitroso-f ormula of 4-Nitrosophenol. By HERBERT HENRY HODGSON and FRANCIS HARRY MOORE . CCCX.-Nitration of Phthal- and Succin-p-tolil. By OSCAR L.BRADY WILLIAM G. E. QUICK and WALTER F. CCCXI.4ubstitution in Vicinal Trisubstituted Benzene Derivatives. Part 111. By LEON RUBENSTEIN . CCCXI1.-Aminobenzthiazoles. Part II. Naphthylamino-naphthathiazole Derivatives. By ROBERT FERGUS HUNTER . CCCXIII.-An Investigation of the Action of Halogens on 2 4-Dimethylbenzoyl Chloride. By WILLIAM HENRY PERKIN jun. and JOHN FREDERIC SMERDON STONE . CCCXIV.-Synthesis of Substituted 4-Keto-1 2 3 4-tetra-hydroquinolines and an Attempt to Syntheaise 4-Keto-1 2 3 4-tetrahydroisoquinoline. By GEORQE ROGER CLEMO and WILLIAM HENRY PERXIN jun. CCCXV.-Interactions of Tellurium Tetrachloride and Aryl Alkyl Ethers. Part I. By GILBERT T. MORGAN and HARRY DUGALD KEITH DREW . CCCXVI.-A New Aspect of the Photochemical Union of Hydrogen and Chlorine.By RONALD G. W. NORRISH. CCCXVII.-Selective Solvent Action. Part IV. Cryoscopy in Mixed Solvents. WELLING . By ROBERT WRIGHT . PAGE 2234 2236 2245 2248 2250 2255 2260 2264 2268 2270 2275 2297 2307 2316 233 ocCXVIII.-Co~our and Molecular Geometry. Part IV. Explanation of the Colours of the Cyanine Dyes. By JAMESMOIR . . CCCXIX.-The Influence of Nitro-groups on the Reactivity of Substituenfs in the Benzene Nucleus. Part VIII. 2 3- and 2 5-Dinitro-~-chlorotuenes. By Jrrad~s K.ENNER CHARLES WILLTAM TOD and ERNEST WITHAM CCCXX.-The Formation of Chromones.-A Criticism. By WESON BAKER . CCCXXI.-The Formation and Stability of Associated Alicyclic Systems. Part 11. The Formation and Dis-ruption of Dicyclic Dihydroresorcinols.By EXNEST OLD FARMER and JOHN Ross CCCXILI1.-Applications of Thallium Compounds in Organic Chemistry. Part 11. Titrations. By GEOEGE HALLATT CHRISTIE and ROBERT (~LARLES MENZIES . CCCXXIII.-The Reactions of Azoxy-compounds. Part I. The Action of Light. By WILLIAM MURDOCH CWMMINQ and GEOWE STRATON FERRIEE . CCCCXXIV.&-ordinated Compounds of the Alkali Metals. Part II. By N m VINCENT SID~WICK and FREDEBJCK MASON BREWER . CCCXXV.-Studies in the Configuration of aa’-Dibromo-dibasic Acids. Part IT. The aa’-Dibromoglutaric Acids. By HARRY RAYMOND ING and WILLJAM HENRY PERKIN, jun. CCCXXVI.-The Catalysis by Alumina of the Rertction between Ethyl Alcohol and Ammonia. By GORDON W~JAIKDORRELL . CCCXXVII.-Substituted k?ofiazomethanes.By FRED -EEUCK DANIEL CHATTAWAY and ARTHUR JOHN WALKER CCCXXVIII.-The Isomerism of the Oximes. Part XXIII. Acyl Derivatives. By OSCAR L. BRADY and GEBALD PATRICK MCHUGH . Part XXIV. 4-Methoxy-3-methyl- 3-Nitro-4-methyl- and Some ortho-Substituted Benzaldoximes. By OSCAR L. BRADY, ANTOINETTE N. COSSON and ARTHUR J. ROPER . CCCXXX.-The Periodic Crystallisation of Pure Substances. By ERNEST SYDNEY HEDGES and JAMES ECXERSLEY M Y E ~ . CCCXXX1.-The Rotation-Dispersion of Optically Active Compounds. Dimethoxysuccinates and Nicotine. By THOMAS STEWART PAWERSON and JAMES DAVIDSON FULTON . . CCCXXIX.-The Isomerism of the Oximes. 2338 2343 2349 2358 2369 2374 2379 2387 2399 2407 2414 2427 2432 243 xxviii CONTENTS.CCCXXXII .-p-Dimethylaminodiphenylacetic Acid. By DAL~SINGH . NoTEs.-Selenium as a Chlorine Carrier. By OSWALD SILBERRAD and CHARLES A. SILBERRAD . A Simple Form of Gas Circulating Apparatus. By A. R. PEARSON and J. S. G. THOMAS The Action of Metals on Dipentene Dihydrohalide. Re-paration of a Synthetic Diterpene. By KENNETH CHARLES ROBERTS . CCCXXX1II.-Negative Adsorption. The Surfme Tensions and Activities of Some Aqueous Salt Solutions. By ARTHUR KENNETH GOARD . CCCXXX1V.-Polarity Theories and Four-membered Rings. The Non-existence of 2 3 3-Triphenylmethylene-1:2-oxaimine. By GEORGE NORMAN BURKEIARDT, ARTHUR LAPWORTH and JAMES WALKDEN CCCXXXV.-The Distribution of Pyridine between Water and Benzene. By ROWLAND MARCUS WOODMAS and ALEXANDER STEVEN CORBET .CCCXXXVI.-A Circulation Apparatus for Gases. By NITYA GOPAL CHATTERJI and GEORGE INGLE ~ C H . CCCXXXVI1.-The Cyanine Dyes. Part IX. The Mechan-ism of the Condensations of Quinaldine Alkyliodides in Presence of Bases. By WIILIAM HOBSON Mrus and RICHARD RAPER . CCCXXXVII1.-Dibenzylquinaldine. By WILLIAM HOB-SON MILLS and ARNOLD THOMAS AKERS CCCXXX1X.-The Resolution of an Asymmetric Arsenic Compound into its Optically Active Forms. By WIL-LIAM HOBSON MILLS and RICHARD RAPER CCCXL.-The Production of Oxide Films on Copper at the Ordinary Temperature. By ULICK RICHARDSON EVANS CCCXLL-The Electrical Conductivity of Phosphorus Penta-chloride. By GEORGE WILLL4M FRASER HOLROYD, HARRY CHADWICK and JOSEPR ERNEST HALSTEAD MITCHELL . CCCXLI1.-The Occurrence of Sylvestrene.By B. SANJ~VA RAO and JOHN LIONEL S~ONSEN . CCCXLII1.-The Colorimetric Dissociation Constants of 3 5-Dinitrocatechol and 4 6-Dinitroresorcinol. By FRANK CHARLES LAXTON EDMTJND BRYDGES RUDHALL PRIDEAUX and WILLIAM HOWARD RADFORD . . . PAQE 2445 2449 2450 2451 2451 2458 2461 2464 2466 2475 2479 2484 2492 2494 249 CONTENTS. coCXLIV.4ymmetrical Substitution Derivatives of Tri-methylene Dibromide and Pentamethylene Dibromide. By WILLIAM HOBSON Mrraa and LEsm B m s . CCCXLV.-The Codiguration of the Ammonium Ion. By WIL;LI&M HOBSON n(mrr,ci and ERNEST HENRY W ~ ~ B ~ E N CCCXLVI.-The Correlation of Absorption Spectra with Ionisation in Violuric Acid. By RICHABD Ar;aN MOBTON and AaTKTJa H~OLD * P ~ B .CCCXLVII.-The Parachor and Chemical Constitution. Part III. Orientation Isomerism in Aromatic Com-pounds. By Smm SUGDEN and HENBY W m s . CCCXLvIzI.-The Conversion of r- Phenyl-a-naphthylgly-collic Acid into Ketones. By ALEX. MCKENVE and HAROLDJAMESTATTEBSALL . CCCXLIX.-Olefinic Terpene Ketones from the Volatile Oil of Flowering Tag& gkcndulifera. Part I. By THOU GILBERT HENRY JONES and FRANK BEB;BY S m . CCCL.-The Isomerism of the Styryl Akyl Ketones. Part II. The Isomerism of the Homologues of 2-Hydroxystyry1, and of 3-Methoxy-4-hydroqstyryl Methyl Ketones. By ~ X A N D I E R MCGOOKIN and DONALD JAMES S~CLILIB;. C(XI;I.-The Relationship of Salts in Dilute Aqueous Solution i18 determined by their Influence on the Critical Solution Temperatnre of the System Phenol-Water.By JOHN HE~SEBT CARRINGTON Lou= ROBEBT &-ON and W m HAMILTON PATTERSON . CCCLII.-Studies of Equilibrium in Systems of the Tspe Nickel 8ulphateWater at 30". By BERT h m CAVEN and THOUS Comm Mrrmmu CCCLIII.-The System Silver Sulphate-Aluminium Sulphate Wabr at 30". By ROBERT IbLctzm CAVEN and THOUS CORLETT-. CCCLIV.-Investigafions on the Dependence of Robtory Power on Chemical Constitution. Part XXVII. The Optical Properties of n-Algyl p-Toluenesulphinates. By HENRYpHII;ups . CCCLV.-The Relation between Chemical Constitution and Pungency in Acid Amides. By EDWARD cH&RLBIs SNELL JONES and FRANK LEE Pnux A.&(SO*) -B€"S04-H,0. Pad 11. Aluminium Sulph&+ . . xxix PAeB 2502 2507 2514 2517 2522 2530 2539 254.4 2549 2550 2552 2588 cccLvI.-The Equilibrium in the Systems Aluminium Sulphatdhpper Sulphate-Water and Aluminium Sul-phate-Femw Sulphate-Water at 25".By Vmcm JOSEPH Occms~aw . . 259 CCCLVII.-Thn Effect of Gum Arabic and other Emulsifiers on the Acid Hydrolpis of Estera in Heterogeneoua Systems. B~ROBEBTCHBISTIES~ . CCCLVIII.-An Investigation of the Effect of DBerential Aeration on Corrosion by meam of Electrode Potential Measurements. By A. L. MCAULAY and F. P. BOWDEN CCCLIX.-Production of cydoTelluripenta4ediolle Di-chlorides. By GILBERT T. MOMAN . OCCLX.-Tnteractions of Tellurium Tetrachloride and Mono-ketones. By GILBERT T. MORGAN and OLIVER CECIL ELVINS . CCCLXI.-Trypanocidal Action and Chemid Constitution.Part 11. Arylamides of CAminophenylarsinic Acid. By HAROLD KING and WIJXJAM OWEN MUECH CCCLXII.-The Action of Nitrous Acid upon Amidea and Other ‘cAmin~”-compounds. By ROBERT HENBY ADERs3ibaMEE . . . . . cccLxIII.-Solubility Influences. Part I. The Effect of some &lb Sugars and Temperature on the Solnbility of Ethyl Acetate in Water. By SAMUEL GLASSTONE and ALBEBT Porn . the m m i e l - f i h Readion. By bTaaR &EDEm2L-and EUSTACE EBENEZER TUERER . . (xxLxV.-yf-Dichlorodipropyl Sulphide. By GEOWE M~CDONALD BENNETT and ALFRED LOUIS HOCK . cccL;IIVI.-Re+cpnrche8 on Sulphuryl Chloride. Part IV. Further Studiea an a New Chlorinating Agent. Pre-paration of Polychloro-derivatives of Toluene. By OSWALD SILBEEEUD. . CCCLXVII.-Muction Products of the Hydroxyanthra-quinones.Part VII. By WILLIAM BERTRAM MILLEB and ARTHUR GEORGE PER~IN . CCCLXVIII.-Studiea with the Microbalance. Part II. The Photochemical Decomposition of Silver Chloride. By ERNEST JOHANNES HARTTJNU . . . CCCLXIX.-Absorp$ion Spectra and Lactam-btim Tauto-merism. By RECHARD ALAN MORTON and EDWABD ROGER^ tXCLXX.-TxypanocU Action and Chemical Cadtution. Part IU. Arainic Acids containing the G€yoxaliss Nucleus. By ISIDOBE ETXANAE BAIABAN and EAROLD KING . . CCCLXN.-me Preparation of Tertiary Arsines PAGE 2602 2605 261 1 2625 2632 2651 2660 2667 2671 2677 2684 2691 2698 270 CONTENTS. CCCLXXI.-The Rate of Reaction of Bromine with Aqueous Formic Acid. By DALZIEL LLEWEI;LYN m a , WILLCAM KBNXETH HUTCHISON and EELEDEBICK Row-C X X X X I I .- h t o n i c Estem derived from Phenacyl Bromide by Condensation with Ethyl Sodiomalomte and Andogons Substances. By RAMONI M o m RAY and J ~ " D B A NATEI RAY . CCCLXXIII.-Equilibrium in the Sptem CwCO*O.C&+ H,OeCWOH + CH,*CO.OH. By GEORGE JOSEPH B o ~ ~ o w s . . 0 CCCLXXIV.-Spth& of 2 3 5 (or 2 3 4)-Trimethyl Glucose. By JAMES C ~ L Q U H O ~ ~ IRVINE and JOHN WAZTEB HYDE OLDHAM . CCCTlxV.-Glycerol Glucoside. By HELEN SIMPSON GILCHRIST and CLIP~~ORD BUZBOUGH PrraVEs NoTEs.-&dphomtion of Pchlorophenol. By JOHN MIL-DRED GAUNTLETF and SAMUEL Smms . 2-m-Xylidino-5-ethoxy-4 &i-dihydrothhzole. By VLSH-VANATH KEKSEINA NIIKKAR and ~ A X K LEE PYXAH . CCCLXXVI.-The Heat of Combustion of Salicylic Acid.By ENDRE BEBNEB . CCZLXXVIC.-UnRtable States of Solutions of Sodim Behenate. By MARY EVELYN LAING . cCCLXXvrrZ.-SUlphur Compounds Removed from a Persian Petroleum by Means of Sulphuric Acid. Part I. By EDWARD HEXBY T H I E ~ Y . CCCLXXTX.-Co&nsatiom of the Sodium Derivatives of Trimethylene Glycol and Glycerol. By ARTHUR FAIB-BOURNE and GRAHAM EDWAED FOSTER CCCLXXX.-The Formation aad Growth of Silver Nuclei in the Decomposition of Silver 0At.e. By JAMES YOUKGEB MACDONALD and CYRIL NORMAN HINSHEL-CCCLXXXI.-The Influence of Different Nuclei on the Absorption Spectra of Substanceg. By JOHN EDWARD P U R V I S . CCCLXXXII.-The Possible Enhanced -4ctivity of Eewly-formed Molecules. By FRANK ROBERT Goss and CHRISTOPHER KELE INGOLD . . Part I.By JOHN READ and ALISON MABY RITCHIE COOE . LANDSON SNIELlL . . . . . . WOOD . CCCT,XXXTTT.-Researchm in the Menthone Series. Xxxi PAOP 2715 2721 2723 2729 2735 2745 2746 2747 2751 2756 2759 2764 2771 2776 278 xxxii CONTENTS. PA-CCCLXXXIV.-The Ionic Activit.y Product of Water in CCCLXXXV.-A Comparison of Methods of Xeasuring the By NEIL K. ADAM ROBERT S. CCCLXXXJ71.-An Electrometric and a Phase Rule Study of some Basic Salts of Copper. By HUBERT THOMAS STANLEY BRITTON . . 2796 CCCLXXXVI1.-The Relationship between the Optical Rotatory Powers and the Relative Configurations of Optically Active Compounds. Part 11. The Relative Configurations of the Optically Active Blandelic Acids and 13-Phenyl-lactic Acids.By GEORGE WILLIAM CLOUGH . . 2808 CCCLXXXVII1.-The Action of Silica on Electrolytes. Part 11. By ALFRED FRANCIS JOSEPH and HENRY BOWEN OAKLEY . . 2813 CCCLXXXIX.-Isomeric Change in -Aromatic Compounds. Part I. The Conversion of Diacylanilides into Acyl-amino-ketones. By ARTHUB WILLIAM CHAPMAN . 2818 CCCXC.-The Partial Pressures of Water Vapour and of Sulphuric Acid Vapour over Concentrated Solutions of Sulphuric Acid at High Temperatures. By JOHN SBIEATH THOBUS and WILLL~M FRANCIS BARKER . 2820 CCCXC1.-The Partial Formaldehyde Vapour Pressures of Aqueous Solutions of Formaldehyde. Part II. By WILFRID LEDBURY and ETHELBERT B 7 n ; ~ BLAIR . 2832 CCCXCII.-?hansformations of the Sugar Nitrates. By CCCzZCIII.-Lead Dihydride and Lead Tetrahydride. By EDWARD JOSEPH WEEKS .. 2845 CCCXCIV.-Complex Formation in Lead Nitrate Solutions. Part II. The Quaternary System Potassium Nitrate-Lead Nitrate-Barium Nitrate-Water. By SAMUEL GLASSTONE and ERNEST J. RICGS . . 2846 CCCXCV.-The Behaviour of Glucose and Certain Other Carbohydrates towards Dyestuffs and towards Potassium Ferricyanide in an Alkaline Medium. By EDMUND KNECHT and EVA HIBBERT . . 2854 CCCXCIVI.-The Salting-out Effect. The Influence of Electrolytes on the Solubility of Iodine in Water. By JOHN STANLEY CARTER . . 2861 CCCXCVII.-The Partial Pressures of Aqueous Ethyl Alcohol. By &,YARD JOHN EGLINTON DOBSON . 2866 Glycerol-Water Mixtures. By JAMES COLVIN . . 2788 Polarity of Surfaces. MORRELL and RONALD G. W. NORRJSH . . 2793 Jom- WALTER HYDE OLDHAM . . 284 coxam!?Ts. KKKcii P A W CiXXCVIII.-!L'he Methylation of the Oximes of B e d . By OSCAR L. BRADY and HILDA M. PERRY ccCXCIX.-Studies of Dynamic Isomerism. Part XX. Amphoteric Solvents aa Catalysts for the Mutarohtion of the Sugars. By THOMAS i k l ~ ~ r n LOWRY and CCCC.-Reactions of Organic Thidphates. By HENBY BELL FOOTNEB and SAMUEL S m s . CZCCI.-Observations on the Claisen Reaction. By GILBERT T. MORGAN and EUSEB~S Horns . CCCCII.-The Relation of Homogeneous to Catalysed Reactions. The Catalytic Decomposition of Hydrogen Iodide on the Surface of Platinum. By Cyan; N o w HINSHELWOOD and ROBERT EMME!LT Boag. CCCC1II.-Oxidation of Ethyl Ether to Oxalic Acid in Presence of Uranyl Nitrate. By SYDNEY WIILLIBM ROWELL and ALEXAXDER SMITH RUSSELL CCCCIV.-Polymerisation of p-Glucosan. The Constitution of Synthetic Dextrins. By JABEES COLQUHOUN IRVINE and JOHN WALTER HYDE OLDHAM . c(x3Cv.The Electrical Conductivities of Hydrogen Chloride and Potassium Chloride in Water and Acetone-Water Mixtures. By T~;OMAS KERFOOT BROWS-ON and cCCCVI.-The Velocity of Decomposition of Heterocyclic Diazonium Salts. Part I. Diazonium S a h of the Pyrazole and Pyrazolone Series. By JOSEPH REILLY and DENI~ MADDEN ccccvII.-The SwelIing and Dispersion of Some Colloidal Snbsfa;nces in Ether-Alcohol Mixfures. By ERNEST ccIccvITI.-The Allotropy of Zinc. By DAVID STOCKDALE CCCCIX.-Electrometric Study of the Reactions between Alkalie and Silver Nitrate Solutions. By HUBERT !ho&us STANLEY BIWITOX . Noms.-Prepamtion of p-Bromophenylhydroxylamine by the Emulsiiication Process. A Modification. By ROBERT DOWNS HAWOBTH and BBTHVR LAPWORTH . Action of Hydrazine Hydrate on Phenanthmquinone. A Correction. By SIKHIBHIJSHAH Dun . m e Aluminioxalata of Bome Optically Active Bases. By THOMAS BRUCE CHILD ELWYN ROBERTS and EUSTACE EBENEZEBTWNEB. . h K I X E J O H N F A U " E B . . FRANK MAURICE &4Y . wAL'J!ERJOHh'1MBB\DLES . OBITIJABY NOTICES 2 " 2874 2883 2887 2891 2896 2900 2903 2923 2936 2940 2951 2956 2970 2971 2971 297 INFORMATION FOR AUTHORS. THE names of new compounds should be italichd (underlined in the typescript) and the results of d y s i s given in the form : (Found C 43-2; H 6.5; N 11-3; My cryoscopic in benzene 276 255. C,H,,O,N requires C 43.5; Only in special cases should full analytical data be recorded. H 6-4 ; N 1103% ; Af 248). For known compounds the results of analysis should (Found C 50-1 ; H 11.1 ; N 39.1. Calc. C 50.0 ; In giving references to other work the journal (abbreviated title) the year the volume and the page should be given in the text in the order shown; e.g. J . pr. Chem. 1905 71 260. The official list of abbreviated titles is given at the end of the Annual Index of Abstracts. be given in the form : H 11.1 ; N 3809%)