J O U R N A L OF THE CHEMICAL SOCIETY. TRANSACTIONS. H. E. ARMSTRONG, Ph.D., LI,.D., F. R. S. E. C. C. BALY. A. W. CROSBLEY, D.Sc,, Ph.D. BERNARDYER, D.Sc. M. 0. FORSTER, D.Sc., Ph.D., F.R.S. R. MELDOLA, F.R.S. E. J. MILLS, D.Sc., LL.D., F.R.S. SirW. RAMSAY, K.C. R., LL.D., F.R.S. A. SCOTT, D.Sc., F.R.S. W. A. TILDEN, D.Sc., F.R.S. JOHN WADE, D.Sc. &hitorrs : (311. T. MORGAN, D.Sc. J. C. CAIN, D.Sc, Sub- - mitor : A. J. GREENAWAY. 3ssisfant %ub--@:bitJYr : C. H. DEBUH, D.Sc., P1i.D. 1906. Vol. LXXXIX. LONDON: GURNEY & JACKSON, 10, PATERNOSTER ROW. 1906.RICHARD CLAY & SONS, LIMITI~~, RREAD STREET HILL, B.C., AND BUNQAY, SUFFOCK.J O U R N A L H. E. ARMSTRONG, Ph.D., LL.D., E. C. C. BALY. A. W. CROSSLEY, D.Sc., Ph.D. BERNARD DYER, D.Sc. M. 0. FORSTER, D.Sc., Ph.D., F.R.S.P.R.S. OF R. MELDOLA, F.R.S. E. J. MILLS, D.Sc., LL.D., F.R.S. S~~W.RAMSAY,K.C.B.,LL.D.,F.R.S. A. SCOTT, D.Sc., F.R.S. W. A. TILDEN, D.Sc., F.R.S. JOHN WADE, D.Sc. THE CHEMICAL SOCIETY. TRANSACTIONS. @bitma : G. T. MORGAN, D.Sc. J. C. GAIN, D.Sc. Siub-@;bitar : A. J. GREENAWAY. %mistant %dr-&Fbifar : C. H. DESCII, D.Sc., Ph.D. 1906. Vol. LXXXIX. Part I. LONDON GURNEY ‘0: JACKSON, 10, PATERNOSTER ROW. 1906.RICHARD CLAP & SONS, LIMITED, BREAD STREET HILL, E.C., AND BUNOAY, SUFFOLKJ O U R N A L O F THE CHEMICAL SOCIETY. TRANSACTIONS. H. E. ARMSTRONQ, Ph.D., LL.D., E. C. C. BALY. A. W. CROSSLEP, D.Sc., Ph.D. UERNABD DYER, D.Sc. M. 0. FORSTER, D.Sc., Ph.D., F.R.S. F. R. s. R. MELDOLA, F.R.S. E. J. MILLS, D.Sc., LL.D., F.R.S.S~~W.RAMSAY,K.C.B.,LL.D.,F.R.S~ A. SCOTT, D.Sc., F.R.S. W. A. TILDEN, D.Sc., F.R.S. JOHN WADE, D.Sc. Qbifars : G. T. MORGAN, D.Sc. J. C. CAIN, D.Sc. Sub - 6bitor : A. J. GREENAWAY. asr~istarrt Sab-4€bitar : C. H. DESCH, D.Sc., Ph.D. 1906. Vol. LXXXIX. Part 11. LONDON: GURNEY & JACKSON, 10, PATERNOSTER ROW. 1906.RICHARD CLAY & SONS, LIYITED, BUNGAY, SUE’POLK. BREAD STREET HILL, E.C., ANDC O N T E N T S . PAPERS COMMUNICATED TO THE CHEMICAL SOCIETY. PAGE 1.-The Preparation and Reactions of Benzoyl Nitrate. By FRANCIS ERNEST FRANCIS . . 1 11.-The Diazo-derivatives of 1 5- and 1 :8-Benzenesulphonyl- naphthylenediamines. By GILBERT THOMAS MORGAN and FRANCES MARY GORE MICKLETHWAIT . . 4 111.---Azoderivatives of 4 : 6-Dimethylcoumarin. By JOHN THEODORE HEWITT and HERBERT VICTOR MITCHELL .. 13 1V.-Azo-derivatives of 4-Methyl-a-naphthacoumarin. By JOHN THEODORE HEWITT and HERBERT VICTOR MITCHELL . . 17 V.-The Action of Water on Diazo-salts. By JOHN CANNELL CAIN and GEORGE MARSHALL NORMAN . . 19 V1.-The supposed identity of Dihydrolaurolene and Dihydro- isolaurolene with 1 : 1-Dimet hylhexahydrobenzene. ARTHUR WILLIAM CROSSLEY and NORA RENOUF, Salters Research Fellow . . 26 VI1.-The Relation of Position Isomerism to Optical Activity. V. The Rotation of the Menthyl Esters of the Isomeric Dibromobenzoic Acids. By JULIUS BEREND COHEN and ISRAEL HYMAN ZORTMAN . . 47 VII1.-Caro’s Permonosulphuric Acid. By THOMAS SLATER PBICE, D.&. . . 53 1X.-Contributions to the Chemistry of the Amidines. 2-Aminothiazoles and 2-Imino-2 : 3-dihydrothiazoles. 2-Iminotetrahydrothiazoles and 2-Amino 4 : 5-dihydrothi- azoles.By GEORGE YOUNG and SAMUEL IRWIN CROOKES . 59 X.-The Influence of Certain Amphoteric Electrolytes on Amylolytic Action. By JOHN SIMPSON FORD and JOHN MONTEATH GUTHRIE . . 76 XI.-Studies on Optically Active Carbimides. Part 11. The Reactions between GMenthylcarbimide and Alcohols. By ROBERT HOWSON PICKARD, WILLIAM OSWALD LITTLEBURY, By JOHN JOSEPH SUDBOROUGH BS: A.I.C., and ALLEN NEVILLE, B.Sc. . . 93 XI1.-a-Chlorocinnamic Acids. and THOMAS CAMPBELL JAMES . . 105iv CONTENTS. PAGE XIIT.-Some Derivatives of Naphthoylbenzoic Acid and of Naphthacenequinone. By IAN QUILLER ORCHARDSON and CHARLES WEIZMANN . . 115 X1V.-Ethyl P-Naphthoylacetate. By CHARLES WEIZMANN and ERNEST BASIL FALKNER .. 122 XV.-Some New Platinocyanides. By LEONARD ANGELO LEVY and HENRY ARNOTT SISSON . 125 XV1.-Studies in Fermentation. I. The Chemical Dynamics of Alcoholic Fermentation by Yeitst. By ARTHUR SLATOR, Ph.D. . 128 XVI1.-The Slow Combustion of Carbon Disulphide. By NORMAN SMITH . . 142 XVIII. -The Liberation of Tyrosine during Tryptic Proteo- lysis. By ADRIAN JOHN BROWN and EDMUND THEODORE MILLAR . . 145 X1X.-Halogen Derivatives of Substituted Oxamides. By FREDERICK DANIEL CHATTAWAY and WILLIAM HENRY LEWIS. 155 XX.-The Osmotic Pressure of Solutions of Sugar in Mixtures of Ethyl Alcohol and Water. By PERCIVAL SMITH BARLOW. 162 XX1.-The Action of Ammonia and Amines on Diazobenzene Picrate. By OSWALD SILBERRAD, Ph.D., and GODFREY ROTTER, B.Sc. . .167 XXI1.-The Preparation of p-Bistriazobenzene. By OSWALD SILBERRAD, Ph.D., and BERTRAM JAMES SMART . . 170 XXII1.-Studies on Nitrogen Iodide. 111. The Action of Methyl and Benzyl Iodides. and BERTRAM JAMES SMART . . 172 XX1V.-Gradual Decomposition of Ethyl Diazoacetate. By OSWALD SILBERRAD, Ph.D., and CHARLES SMART ROY . . 179 XXV.-Action of Bromine on Benzeneazo-o-nitrophenol. By JOHN THEODORE HEWITT and NORMAN WALKER . . 182 XXV1.-The Condensation of Dimethyldihydroresorcin and of Chloroketodimethyltetrahydrobenzene with Primary Amines. Part I. Monamines.-Ammonia, Aniline, and p-Toluidine. XXVI1.-The Determination of Available Plant Food in Soil by the Use of Weak Acid Solvents. Part 11. By ALFRED DANIEL HALL, M.A., and ARTHUR AMOS, B.A. . . 205 XXVII1.-Studies in the Camphane Series.Part XXI. Benzenediazo-11/-semicarbazinocamphor and its Derivatives. By OSWALD SILBERRAD, Ph.D., By PAUL HAAS, B.Sc., Ph.D. . . 187 By MARTIN ONSLOW FORSTER . . 222CONTENTS. V PAGE XX1X.-Hydroxylamine-ap-disulphonates (Structural Isomerides of Hydroximinosulphates or Hydroxylamine-/3/3-disulphon- ates). By TAMEMASA HACIA . . 240 XXX.-Some Oxidation Products of the Hydroxybenzoic Acids. Part 11. By ARTHUR GEORGE PERKIN, F.R.S. . . 251 XXX1.-Contributions t o the Chemistry of Oxygen Compounds. I. The Compounds of Tertiary Phosphine Oxides with Acids and Salts. By ROBERT HOWSON PICKARD and JOSEPH KENYON . , 262 XXXI1.-A Synthesis of Aldehydes by Grignard’s Reaction. By GORDON WICKHAM MONIER-WILLIAMS . . 273 XXXII1.-The Effect of Constitution on the Rotary Power of Optically Active Nitrogen Compounds.Part I. By MARY BEATRICE THOMAS and HUMPHREY OWEN JONES . . 280 ML 0 XXX1V.-The Critical Temperature and Value of -- of some Carbon Compounds. By JAMES CAMPBELL BROWN, D.Sc. . 311 XXXV.-Some Reactions and New Compounds of Fluorine. By EDMUND BRYDGES RUDHALL PRIDEAUX, M.A., B.Sc. . 316 XXXV1.-Menthyl Benzeuesulphonate and Menthyl Naphthal- ene-P-sulphonate. By THOMAS STEWART PATTERSON and XXXVII. -The Attractive Force of Crystals for Like Molecules JOHN FREW, M.A. . . 333 in Saturated Solutions. By EDWARD SONSTADT . . 339 XXXVII1.-Cuprous Formate. By ANDREA ANGEL. . . 345 XXX1X.-o-Cyanobenzenesulphonic Acid and its Derivatives. By ANDREW JAMIESON WALKER and ELIZABETH SMITH, B.Sc. XL.-Preparation and Properties of Some New Tropeines.By HOOPER ALBERT DICKINSON JOWETT and ARCHIE CECIL OSBORN HANN . . 357 XLL-Studies in Asymmetric Synthesi.s. IV. The Application ’ of Grignard’s Reaction for Asymmetric Synthesis. By ALEXANDER MCKENZIE . . 365 XL1I.-The Resolution of 2:3-Dihydro-3-methylindene-2-carb- oxylic Acid into its Optically Active Isomerides. By ALLEN XLII1.-The Condensation of Dimethyldihydroresorcin and of Chloroke t odimethpl tetrahydroben zene with Primary Amines. Part 11. Diamines.-nz- and p-Phenylenediamine. By PAUL HAAS, D.Sc., Ph.D, . . 387 XL1V.-Silicon Researches. Part X. Silicon Thiocyanate, its Properties and Constitution. By J. EMERSON REYNOLDS . 397 350 NEVILLE, B.Sc. . . 383vi CONTENTS. PAGE XLV.-Studies in the Cnmphane Series. Part XXII.Nitrogen Halides from Camphoryl-$-carbamide. By MARTIN ONSLOW FORSTER and HANS GROSSXANN, Ph.D. . 402 XLV1.-Note on the Application of the Electrolytic Method t o the Estimation of Arsenic in Wall-papers, Fabrics, &c. By THOMAS EDWARD THORPE . . 408 XLVI1.-The Refractive Indices of Crystallising Solutions, with Especial Reference to the Passage from the Metastable to the Labile Condition. By HENRY ALEXANDER MIERS, D.Sc., F.R.S., and FLORENCE ISAAC . . 413 XLVII1.-The Relation of Position Isomerism to Optical Activity. VI. The Rotation of the Menthyl Esters of the Isomeric Chloronitrobenzoic Acids. By JULIUS BEREND COHEN and HENRY PERCY ARMES , . 454 XL1X.-The Action of Light on Benzaldehydephenylhydrazone. By FREDERICK DANIEL CHATTAWAY . . 462 L.-Studies on Optically Active Carbimides.111. The Resolu- tion of u-Phenyl-u’-4-hydroxyphenylethane by means of I-3Tenthylcarbimide. By ROBERT HOWSON PICKARD and WILLIAM OSWALD LITTLEBURY, A.I.C. . . 467 L1.-A Modification of the Volumetric Estimation of Free Acid in the Presence of Iron Salts. By C. CHESTER AHLUM . 4’70 LI1.-Slow Oxidations in the Presence of Moisture. By NORMAN SMITH . . 473 LII1.-Studies in the Acridine Series. Part 111. The Methyl- at ion of Chrysaniline (2-Amino-5-p-aminophenylacridine). By ALBERT ERNEST DUSSTAN and JOHN THEODORE HEWITT . 482 L1V.-The Relation between Absorption Spectra and Chemical Constitution. Part I . The Chemical Reactivity of the Carbonyl Group. By ALFRED WALTER STEWART (Carnegie LV.-The Relation between Absorption Spectra and Chemical Constitution.Part 11. The a-Diketones and Quinones. By EDWARD CHARLES CYRIL BALY and ALFRED WALTER STEWART (Carnegie Research Fellow) . . 502 LV1.-The Relation between Absorption Spectra and Chemical Constitution. Part 111. The Nitroanilines and the Nitro- phenols. By EDWARD CHARLES CYRIL BALY, WALTER HENRY EDWARDS, and ALFRED WALTER STEWART (Carnegie Research Fellow) . 514 LVI1.-The Theory of Alkaline Development, with Notes on the Affinities of Certain Reducing Agents. By SAMUEL EDWARD SHEPPARD , 530 Research Fellow) and EDWARD CHARLES CYRIL BALY . . 489CONTENTS. LVII1.-Fischer’s Salt and its Decomposition by Heat. By PRAFULLA CHANDRA RAY . L1X.-The Constitution and Properties of Acyl Thiocyanates. By JOHN HAWTHORNE LX.-Studies on Comparative Cryoscopy. Part IV.The Hydrocarbons and their Halogen Derivatives in Phenol Solution. By PHILIP WILFRED ROBERTSON . LX1.-The Occurrence of Methane among the Decomposition Products of Certain Nitrogenous Substances as a Source of Error in the Estimation of Nitrogen by the Absolute 3Slethod. By PAUL HAAS, D.Sc., Ph.D. LXI1.-Silver Dioxide and Silver Peroxynibrate. By ED WIN ROY WATSON . LXII1.-Influence of Substituents in the Trinitrobenzene Molecule on the Formation of Additive Compounds with Arylamines. By JOHN JOSEPH SUDBOROUGH and NORMAN PICTON . LX1V.-The Estimation of Carbon in Soils and Kindred Sub- stances. By ALFRED DANIEL HALL, NORMAN HARRY JOHN MILLER, and NUMA MARNU . LXV.-The Electrolysis of Salts of PP-Dimethylglutaric Acid. By JAMES WALKER and JOHN HERFOOT WOOD LXV1.-Bromo- and H ydrox y deriva tives of PPP’P’-Tetramethyl- suberic Acid. By JOHN KERFOOT WOOD .LXVI1.-An 1mpro;-ed Apparatus for Measuring Magnetic Rotations and Obtaining a Sodium Light. By Sir WILLIAM HENRY PERKIN . LXVIIL-The Relation between Absorption Spectra and Chemical Constitution. Part IV. The Reactivity of the Substituted Quinones. By ALFRED WALTER STEWART (Carnegie Research Fellow) and EDWARD CHARLES CYRIL BALY . LXIX.-A Mode of Formation of Aconitic Acid and Citrazinic Acid, and of their Alkyl Derivatives, with Remarks on the Constitution of Aconitic Acid. By HAROLD ROGERSON and JOCELYN FIELD THORPE . LXX.-The Interaction of Well-dried Mixtures of Hydro- carbons and Oxygen. By WILLIAM ARTHUR BONE and GEORGE WILLIAM ANDREW . LXX1.-The Explosive Combustion of Hydrocarbons.By WILLIAM ARTHUR BONE and JULIEN DRUGMAN LXXI1.-The Action of Phenylpropiolyl Chloride on Ketonic Compounds, Part 11. By SIEGFRIED RUHEMANN . . . . vii PAGE 551 556 567 570 578 583 595 598 604 608 618 631 652 660 682.. . V l l l CONTENTS. PAGE LXXII1.-Studies in Asymmetric Syntnesis. V. Asymmetric Syntheses from CBornyl Pyruvate. By ALEXANDER MCKENZIE and HENRY WREN, B.A., B.Sc., Ph.D. . . 688 LXX1V.-Aromatic Sulphonium Bases. By SAMUEL SMILES and ROBERT LE ROSSIGNOL . . 696 LXXV.-Acetyl and Benzoyl Derivatives of Phthnlimide and Phthalamic Acid. By ARTHUR WALSH TITHERLEY and WILLIAN LOKGTON HICKS . . 708 LXXV1.-Some Thio- and Dithio-carbamide Derivatives of Ethyleneaniline and the Ethylenetoluidines. By OLIVER CHARLES MINTY DAVIS .. 713 LXXVI1.-The Rusting of Iron. By GERALD TATTERSALL MOODY . . 720 LXXVII1.-The Dynamic Isomerism of Phloroglucinol. By EDGAR PERCY HEDLEY, A.R.C.Sc.1. . . 730 Annual General Meeting . 735 Presidential Address . . 745 LXX1X.-Condensation of Benzophenone Chloride with a- and P-Naphthols. By GEORGE WILLIAM CLOUGR, B.Sc. . . 771 LXXX.-Experiments on the Synthesis of Camphoric Acid, Part IV. The Action of Sodium and Methyl Iodide on Ethyl Dime t hylbutanetricar boxylate, C02Et.CH2-CH(C0,Et)CMe2.CN,.C02Et. By WILLIAM HENRY PERKIN, jun., and JOCELYN FIELD THORPE . 778 LXXX1.-Experiments on the Synthesis of Camphoric Acid. Part V. A Synthesis of Camphoric Acid. By WILLIAM LXXXI1.-A Product of the Action of isoAmyl Nitrite on By ARTEIUR GEORGE FERKIN, F.R.S., and ALEC LXXXII1.-Some New o-Xylene Derivatives.By GEORGE LXXX1V.-Note on the Constitution of Cellulose. By ARTHUR LXXXV.-The Constitution of Salicin. Synthesis of Penta- By JAMES COLQUHOUN IRVINE, Ph.D., D.Sc. LXXXV1.-Reciprocal Displacement of Acids in Heterogeneous HENRY PERKIN, jun., and JOCELYN FIELD THORPE . . 795 Pyrogallol BOWRING STEVEN, B.Sc. . . 802 STALLARD, M. A. . 808 GEORGE GREEN and ARTHUR GEORGE PERKIN . . a11 methyl Salicin. (Carnegie Fellow), and ROBERT EVSTAFIEFF ROSE, Ph.D. . 814 Systems. By ALFRED FRANCIS JOSEPH, A.R.C.S., B.Sc. , 823CONTENTS. ix PAGE LXXXVI1.-Experiments on the Synthesis of the Terpenes. A Synthesis of Tertiary Menthol (p-Menthanol- By WILLIAM LSXXVII1.-Experiments on the Synthesis of the Terpenes. Synthesis of the Optically Active Modifications By FRANCIS LXXX1X.-The Constitution of the Hydroxides and Cyanides obtained from Acridine, Methylacridine, and Phenanthridine Methiodides.By CHARLES KENNETH TINKLER, B.Sc. . . 856 XC.-The Residual Affinity of Coumarin as shown by the Form- ation of Oxonium Salts. By GILBERT THOMAS MOKGAN and FRANCES MARY GORE MICKLETHWAIT . . 863 XC1.-The Constitution of Ammonium Amalgam. By ELIZABETH MARY RICH and MORRIS WILLIAM TRAVERG, D.Sc., F.R.S. . 8'72 XCI1.-Aromatic Compounds obtained from the Hydroaromatic Series. Part I T . The Action of Phosphorus Pentachloride on Trimet.hyldihydroresorcin. By ARTHUR WILLIAM CROSSLEY and JAMES STUART HILLS . . 875 XCII1.-The Densities of Liquid Nitrogen and Liquid Oxygen and their Mixtures. By JOHN KENNETH HAROLD INGL~S and JOSEPH EDWARD COATES .. 886 XC1V.-The Chemistry of Organic Acid '( Thiocyanates " and their Derivatives. By AUGUSTUS E. DIXON, M.D. . . 892 XCV.-The Action of Light on Potassium Ferrocysnide. By GLPN WILLIAM ARNOLD FOSTER, B.Sc. (1851 Exhibition Scholar, Manchester University) . , . 912 XCV1.-The Action of Magnesium Methyl Iodide on dextvo- Cy WILLIAM AUGUSTCS TILDEN and FREDERICK GEORGE SHEPHEARL), B. Sc., Lond. . 920 XCVI1.-Dinitroanisidines and their Products of Diazotisation (Second Communication). By RAPHAEL MELDOLA, F.R.S., and FRANK GEORGE C. STEPHENS . . 923 XCVII1.-Electrolysis of Potassium Ethyl Dipropylmalonate. By DAVID COWAN CRICHTON, M.A., B.Sc. (Carnegie Research XC1X.-Resolution of Lactic Acid by Morphine. By JAMES C.-The Oxidation of Hydrocxrbons by Ozone a t Low Tempera- C1.--Reactions Involving the Addition of Hydrogen Cyanide to Carbon Compounds. Part V.Cyanodihydrocarvone. By ARTHVR LAPWORTH . . 945 Part VII. 4) and of Inactive Menthene (A3-p-Menthene). HERRY PERKIN, jun. . . 832 Part VIII. of A3-p-Menthenol(8) and A3W')pMenthadiene. WILLIAM HAY and WILLIARi HENRY PERKIN, jun. . . 839 Limonene Nitrosochlorides. Scholar) . . 929 COLQUHOUX IRVINE, Ph.D., D.Sc. (Carnegie Fellow) . . 935 tures. By JULIEN ORUGMAN . . 939X CONTENTS. PAGE CI1.-The Relation between Absorption Spectra and Chemical Constitution. Part V. The isoNitroso-compounds. By EDWARD CHARLES CYRIL BALY, EFFIE GWENDOLINE MARSDEN, and ALFRED WALTER STEWART (Carnegie Research Fellow) . CII1.-The Relation between Absorption Spectra and Chemical Constitution.Part VI. The Yhenylhydrazones of Simple Aldehydes and Ketones. By EDWARD CHARLES CYRIL BALY and WILLIAM BRADSHAW TUCK . . 982 CIV.-A New Method for the Measurement of Hydrolysis in Aqueous Solution based on a Consideration of the Motion of Ions. By ROBERT BECKETT DENISON, M.Sc., Ph.D., and CV.-The Solubility of Triphenylmethane in Organic Liquids with which i t forms Crystalline Compounds. By HAROLD HARTLEY, M.A., Fellow of Balliol College, and Nom GARROD THOMAS, Brackenbury Scholar, Balliol College . CV1.-Studies of Dynamic Isomerism. Part IV. Stereoisomeric Halogen Derivatives of Camphor. By THOMAS MARTIN LOWRY . . 1033 CVI1.-Studies of Dynamic Isomerism. Part V. Isomeric Sul- phonic Derivatives of Camphor.By THOMAS MARTIN LOWRY and EGBERT H. MAGSON, B.Sc. . . 1042 CVII1.-Influence of Substitution on the Formation of Diazo- amines and Aminoazo-compounds. Part Y. s-Dimethyl- 4 :6-diamino-m-xylene. By GILBERT THOMAS MORGAN and ARTHUR CLAYTON, B.Sc. . . 1054 C1X.-Ammonium Selenate and the Question of Isodimorphism in the Alkali Series. By ALFRED EDWIX HOWARD TUTTON, M.A., D.Sc. (Oxon.), F.R.S.- . . 1059 CX.-The Constituents of the Essential Oil frop the Fruit of Pittosporum undulatum. By FREDERICK BELDING POWER and FRANK TUTIN . . 1083 CX1.-A Study of the Reaction between Hydrogen Peroxide and Potassium Persulphate. By JOHN ALBERT NEWTON FRIEND, M.Sc. . 1092 P a r t 11. The Resolution of the Tetrahydronaphthoic Acids. By ROBERT HOWSON PICKARD and JOSEPH YATES . . 1111 CXII1.-The Constitution of Umbellulone.By FRANK TUTIN . 1104 CX1V.-Contributions to the Theory of Isomorphism based on Experiments on the Regular Growths of Crystals of One Substance on those of Another. By THOMAS VIPOND BARKER, B.A., B.Sc. (Oxon.), (Senior Demy of Magdalen College, 966 BERTRAM DILLON STEELE, D.Sc. . . 999 . 1013 CXI1.-Optically Active Reduced Naphthoic Acids. Oxford) . - ? a . . 1,120CONTENTS. xi PAGE CXV.-The Diazo-derivatives of the Mixed Aliphatic Aromatic w-Benzenesulphon ylaminobenzylamines. By GILBERT THOMAS MORGAN and FRANCES MARY GORE MICKLETHWAIT . . 1158 CXV1.-The Mobility of Substituents in Derivatives of P-Naphthol. By JOHN TEEODORE HEWITT and HERBERT VICTOR MITCHELL . . 1167 CXVI1.-A Possible Source of Error in Stas' Nitrogen Ratios.By ROBERT WHYTLAW GRAY . . 1173 CXVII1.-The Decomposition of Nitrocellulose. By OSWALD SILBERRAD, Ph.D., and ROBERT CROSBIE FARMER, Ph.D., D.Sc. . 1182 CX1X.-The Esters of Triacetic Lactone and Triacetic Acid. By FOSTER SPROXTON, B.Sc. . . 1186 CXX.-The Behaviour of the Vapours of Methyl Alcohol and Acetaldehyde with Electrical Discharges of High Frequency. By THOMAS PURDIE, By HERBERT JACKSON and DUDLEY NORTHALL-LAURIE . . 1190 F.R.S., and CHARLES ROBERT YOUNG, B.Sc. . 1194 F.R.S., and ROBERT EYSTAFIEFF ROSE, Ph.I?. . . 1204 CXX1.-The Alkylation of Rhamnose. CXXI1.-The Alkylation of I-Arabinose. By THOHAS PURDIE, CXXII1.-Saponarin, a New Glucoside Coloured Blue with CXX1V.-The Action of Xthyl Iodide and of Propyl Iodide on the Disodium Derivative of Diacetylacetone. By ALEXANDER WILLIAM BAIN, B.A., F.Sc.CXXV.-The Ethyl Esters of Acetonyloxalic and benzoyi- pyruvic Acids and the Action of Ethyl Oxalate on Acetanilide and its Homologues. By SIEGFRIED RUHEMANN . . 1236 CXXV1.-Aldehydrol and the Formation of Hydrates of Com- pounds containing a Uerbonyl Group. By WILLIAM MORRIS COLLES, jun. . . 1246 CXXVI1.-Studies on Optically Active Uarbimides. IV. The Resolution of ac-Tetrahydro-2-naphthol by means of FMenthylcarbimide. By ROBERT HOWSON PICKARD and WILLIAM OSWALD LITTLEBURY, A.I.C. . 1254 CXXVII1.-The Constitution of Acetone. By MILLICENT TAYLOR . 1258 CXX1X.-Tetrazoliue. Part IV. By SIEGFRIED RUHEMANN . 1268 CXXX.-The Hydrolysis of Animonium Salts by Water. ERNEST GEORGE HILrJ t . 1273 Iodine. By GEORGE EARGER .. 1210 . 1224 Byxii CONTENTS. PAGE CXXX1.-The Act-ion of Nitrous Acid on the Arylsulphonyl- metadiamines. By GILBERT THOMAS MORGAN and FRAKCES MARY GORE MICKLETHWAIT . . 1289 Cleve Memorial Lecture. By THOMAS EDWARD THORPE, C.B., F.R.S. . . 1301 CXXXI1.-Labile Isomerism among Acyl Derivatives of Sali- cylamide. By JAMES MCCONNAK and ARTHUR WALSH TITHERLEY . 1318 CXXXII1.-Some New Derivatives of Dicyclopentadiene. By CXXX1V.-Thiocarbamide as a Solvent for Gold. By JAMES CXXXV.-The Vapour Pressures of Binary Mixtures. Part I. The Possible Types of Vapour Pressure Curves. By ARTHUR MARSHALL . . 1350 CXXXV1.-A New Method for the Measurement of Hydrolysis in Aqueous Solutions, based on n Consideration oE the Motion of Ions. A Correction. By ROBERT BECKETT CXXXVIL-Dinaphthacridines. By ALFRED SENTER and PERCY CXXXVII1.-The Interaction of Chlorine and Hydrogen. By CXXX1X.-Notes on Derivatives of a-N-Alkylated Naphthyl- CXL.-Electrolytic Oxidation.By HERBERT DRAKE LAW, B.Sc. 143'7 CXL1.-The Properties of 2:3:4:5-Tetrachlorotoluene. ALEXANDER RULE, M.Sc., Ph.I). . . 1339 MOIR, M.A., D.Sc. . . 1345 DENISON and BERTRAM DILLON STEELE . . 1386 CORLETT AUSTIN . . 1387 CHARLES HUTCHENS BURGESS and DAVID LEONARD CHAPMAN 1399 amine. By RAPHAEL MELDOLA, F.R.S. . . 1434 A Correc- tion. By JULIUS BEREND COHEN and HENRY DRYSDALE DAKIN . . 1453 CXLI1.-A Method for the Formation of Succinjc Acid and of its Alkyl Derivatives. By ANNIE HIGSON and JOCELYN FIELD THORPE . . 1455 CXLII1.-Studies in the Acridine Series. Part IV. The Methylation of Chrysophenol.By ALBERT ERNEST DUKSTAN and JOHN THEODORE HEWITT . . 1472 CXL1V.-The Relation of Position Isomerism to Optical Activity. VII. The Rotation of the Menthyl Esters of Three Isomeric Dinitrobenzoic Acids. By JULIUS EEREND COHEK and HENRY PERCY ARMES . . 1479 Part 111. The Relative Catalytic Effect of Bases on the Compounds of A2-Dihydro-1-naphthoic Acid. By ROBERT HOWSON PICKARD and JOSEPH YATES . . 1484 CXLV.-Optically Active Reduced Naplithoic Acids.CONTENTS. xi11 PAGE @XLVI.-Estimation of Copper by Titanium Trichlaride. By CXLVI1.-The Gum of Cochlospemzum Gossypium. By HENRY CXLVII1.-Steric Hindrance in the Naphthalene Series. By CXL1X.-Electrolytic Reduction. I. Aromatic Aldehydes. By CL.-Electrolytic Reduction. 11. Use of Electrodes.By CL1.-Some Derivatives of 2- and 3-Phenanthrol. By HERBERT CLI1.-The Velocity of Chemical Change in the Polymethylene CLII1.-Separation of aa- and ,BP-Dimethyladipic Acids. By CL1V.-Action of Alcoholic Potassium Hydroxide on 3-Bromo- 1 : 1-dimethylhexahgdrobenzene. By ARTHUR WILLIAM CROSSLEY and NORA RENOUF . . 1556 CLV.-The Preparation and Properties of Dihydropinylamine (Pinocamphylamine). By WILLIAM AUGUSTUS TILDES and FREDERICK GEORGE SHEPHEARD, B.Sc. . . 1560 CLV1.-The Aminodicarboxylic Acid derived from Pinene. By WILLIAM AUGUSTUS TILDEN and DONALD FRANCIS BLYTHER . 1563 CLVI1.--The Description and Spectrographic Analysis of a Meteoric Stone. By WALTER NOEL HARTLEY, D.Sc., F.R.S. 1566 CLVlI1.-Malacone, a Silicate of Zirconium, containing Argon and Helium.By EDWARD STANHOPE KITCHIN and WILLIAM GEORGE WINTERSON, B.Sc. (Lond.) . . 1568 CL1X.-The Action of Nitrogen Sulphide on Certain Metallic Chlorides. By OLIVER CHARLES MINTY DAVIS . . 1575 CLX.-The Addition of Alkyl Halides to Alkylated Sugars and Glucosides. By JAMES COLQUHOUN IRVINE, Ph.D., D.Sc. (Carnegie Fellow), and AGNES MARION MOODIE, M.A., B.Sc. (Carnegie Scholar) . . 1578 @LXI.-The Direct Union of Carbon and Hydrogen a t High Temperatures. By JOHN NORMAN PRING and ROBERT SALMON HUTTON . . 1591 Part 111. By ARTHUR GEORGE GREEN and PERCY FIELD CROSLAKD . . 1602 EZRA LOBB RHEAD . . 1491 HALIBURTON ROBINSON, M.A. (Oxon.) . . . 1496 CLARENCE SMITH . . 1505 HERBERT DRAKE LAW . . 1512 HERBERT DRAKE LAW . . 1520 HENSTOCK . . 1527 Series. By NICHOLAS MENSCHUTKIN, sen.. . 1532 ARTHUR WILLIAM CROSSLEY and NORA RENOUF . . 1552 CLXI1.-The Colouring Matters of the Stilbene Group.xiv CONTENTS. PAGE CLXII1.-The Explosive Combustion of Hydrocarbons. 11. By WILLIAM ARTHUR BONE, JULIEN DRUGMAN, and GEORGE WILLIAM ANDREW . . 1614 CLX1V.-Derivatives of multivalent Iodine. The Action of Chlorine on Organic Iodo-derivatives, including the Sul- phonium and Tetra-substituted Ammonium Iodides. By EMIL ALPHONSE WERNER . . 1625 Part IX. The Preparation of cycZoPentanone-4-carboxylic Acid and of cycZoHexanone-4-carboxylic Acid (6Ketohexahydro- benzoic Acid). By FRANCIS WILLIAM KAY and WILLIAM HENRY PERKIN, jun. . . 1640 CLXV1.-Some Derivatives of Catechol, Pyrogallol, Benzo- phenone, and of Substances allied to the Natural Colouring Matters.By WILLIAM HENRY PERKIN, jun., and CHARLES WEIZMANN . . 1649 CLXVI1.-The Nature of Ammoniacal Copper Solutions. By HARRY MEDFORTH DAWSON . , 1666 CLXVII1.-A Development of the Atomic Theory which Corre- lates Chemical and Crystalline Structure and leads to a Demonstration of the Nature of Valency. By WILLIAM BARLOW and WILLIAM JACKSON POPE . . 1675 CLX1X.-Optically Active Dihydrophthalic Acid. By ALLEN CLXX.-The Relation between Natural and Synthetical Glyceryl- phosphoric Acids. Part 11. By FRANK TUTIN and ARCHIE CECIL OSBORN HANN . . 1749 CLXX1.-The Hydrolysis of ‘‘ Nitrocellulose ” arid “ Nitro- glycerine.” By OSWALD SILBERRAD, Ph.D., and ROBERT ULXXIL-Contributions to the Theory of Solutions. I. The Nature of the Molecular Arrangement in Aqueous Mixtures of the Lower Alcohols and Acids of the Paraffin Series.11. Molecular Complexity in the Liquid State. 111. Theory of the Intermiscibility of Liquids, By JOHN HOLMES 1774 CLXXII1.-The Relationship of Colour and Fluorescence to Con- stitution. Part I. The Condensation Products of Mellitic and Pyromellitic Acids with Resorcinol. By OSWALD SILBERRAD, Ph.D. , . 1787 CLXXIV.-Thiocarbonic Acid and some of its Salts. By IDA GUINEVERE O’DONOGHUE, B.Sc., and ZELDA KAHAN, B.Sc. . 1812 CLXXV.-Derivatives of Cyanodihydrocarvone and Cyanocarvo- CLXV.-Experiments on the Synthesis of the Terpenes. NEVILLE, B.Sc. . , 1744 CRosBrE FARMER, D.Sc., Ph.D. . . 1759 menthone. By ARTHUR LAPWORTH . . 1819CONTENTS. XV PAGE CLXXV1.-The Acidic Constants of Some Ureides and Uric CLXXVI1.-The Affinity Constants of Xanthine and its Nethyl CLXXVII1.-Xanthoxalanil and its Analogues.By SIEQFRIED RUHEMANN . 1847 CLXX1X.-The Influence of Various Substituents on the Optical Activity of Tartramide. Part 11. By PERCY FARADAY CLXXX.-The Influence of Various Substituents on the Optical Activity of Malamide. By PERCY FARADAY FRANKLAND and EDWARD DONE, M.Sc. . 1859 CLXXXI. -Reactions Involving the Addition of Hydrogen Cyanide to Carbon Compounds. Part VI. The Action of Potassium Cyanide on Pulegone. By REGINALD W. L. CLARKE and ARTHUR LAPWORTH . . 1869 CLXXXIL-Note on the Anhydride of Phenylsuccinic Acid. By FRANK BERNHARD DEHN and JOCELYN FIELD THORPE . . 1882 CLXXXIIL-Studies in Optical Superposition. Part 11. By THOMAS STEWART PATTERSON and JOHN KAYE .. 1884 CLXXX1V.-The Interaction of the Alkyl Sulphates with the Nitrites of the Alkali Metals and Metals of the Alkaline Earths. By PnAFuLLA CHANDRA R ~ Y and PANCHXNAN NEOGI, M.A. . 1900 CLXXXV.-The Formation and Reactions of Imino-compounds. Part 11. Condensation of Benzyl Cyanide Leading to the Formation of 1 :3-Naphthylenediamine and its Derivatives. By ERNEST FRANCIS JOSEPH ATKINSON and JOCELYN FIELY) THORPE . . 1906 CLXXXV1.-A New Trinitroacetaminophenol and its use as a Synthetical Agent. By RAPHAEL MELDOLA, F.R.S. . . 1935 Acid Derivatives. By JOHN KERFOOT WOOD . . 1831 Derivatives. By JOHN KERFOOT WOOD . . 1839 FRANKLANU and DOUGLAS FRANK TWISS, M.Sc. . . 1852CONTENTS. XV PAGE CLXXV1.-The Acidic Constants of Some Ureides and Uric CLXXVI1.-The Affinity Constants of Xanthine and its Nethyl CLXXVII1.-Xanthoxalanil and its Analogues. By SIEQFRIED RUHEMANN . 1847 CLXX1X.-The Influence of Various Substituents on the Optical Activity of Tartramide. Part 11. By PERCY FARADAY CLXXX.-The Influence of Various Substituents on the Optical Activity of Malamide. By PERCY FARADAY FRANKLAND and EDWARD DONE, M.Sc. . 1859 CLXXXI. -Reactions Involving the Addition of Hydrogen Cyanide to Carbon Compounds. Part VI. The Action of Potassium Cyanide on Pulegone. By REGINALD W. L. CLARKE and ARTHUR LAPWORTH . . 1869 CLXXXIL-Note on the Anhydride of Phenylsuccinic Acid. By FRANK BERNHARD DEHN and JOCELYN FIELD THORPE . . 1882 CLXXXIIL-Studies in Optical Superposition. Part 11. By THOMAS STEWART PATTERSON and JOHN KAYE . . 1884 CLXXX1V.-The Interaction of the Alkyl Sulphates with the Nitrites of the Alkali Metals and Metals of the Alkaline Earths. By PnAFuLLA CHANDRA R ~ Y and PANCHXNAN NEOGI, M.A. . 1900 CLXXXV.-The Formation and Reactions of Imino-compounds. Part 11. Condensation of Benzyl Cyanide Leading to the Formation of 1 :3-Naphthylenediamine and its Derivatives. By ERNEST FRANCIS JOSEPH ATKINSON and JOCELYN FIELY) THORPE . . 1906 CLXXXV1.-A New Trinitroacetaminophenol and its use as a Synthetical Agent. By RAPHAEL MELDOLA, F.R.S. . . 1935 Acid Derivatives. By JOHN KERFOOT WOOD . . 1831 Derivatives. By JOHN KERFOOT WOOD . . 1839 FRANKLANU and DOUGLAS FRANK TWISS, M.Sc. . . 1852