J O U R N A L OF THE CHEMICAL SOCIETY. TRANSACTIONS. aommittu of @ubIkatiotr : H. T. BROWN, LL.D., F.R.S. A. W. CROSSLEY, D.Sc., Ph.D. WYNDHAM R. DUNSTAN, M.A., LL. D., P. F. FRANKLAND, LL.D., F.R.S. F. R. S. M. 0. FORSTER, D.Sc., Pl1.D. H. MCLEOD, F.R.S. E. J. MILLS, D.Sc., LL.D., F.R.S. Sir W. RAMHAY, K. C.B., LL. D., F. R.S. A. SCOTT, D.Sc., F.R.S. W. A. TILDEN, D.Sc., F.R.S. W. P. WYNNE, D.Sc., F.R.S. &;bitor : G. T. MORGAN, D.Sc. SuIY-&bitar : A. J. GREENAWAY. - 1904. Vol. LXXXV. LONDON: GURNEY & JACKSON, 10, PATERNOSTER ROW. 1904.RICHARD CLAY & SONS, LIMITED, BREAD STREET HILL, E.C., AND BUNQAY, SUFFOLK.J O U R N A L OF THE CHEM1CA.L SOCIETY. TRANSACTIONS. H. T. BROWN, LL.D., F.R.S. A. W. CKOSSLEY, D.Sc., Ph.D. WYNDHAM R. DUNSTAN, M.A., LL.D., M.0. FORSTER, D.Sc., Ph.D. P. F. FRANKLAND, LL.D., F.R.S. F.R.S. H. MCLEOD, F.R.S. E. J. MILLS, D.Sc., LL.D., F.R.S. Sir W. RANSAY, K. C. R., LL. D., F. R.S. A. SCOTT, D.Sc., F.R.S. MT. A. TILDEN, D.Sc., F.R.S. W. P. WYNNE, D.Sc., F.R.S. @hitar : G. T. MORGAN, D.Sc. Sulr-@f;bifor : A. J. GREENAWAY. 1904. Vol. LXXXV. Part I. LONDON: GURNEY & JACKSON, 10, PATERNOSTER ROW. 1904.RICHARD CLAY & SONS, LIMITED, BREAD STREET HILL, E.C., AND BUNGA\;, BUFFOLK.J O U R N A L OF THE CHEM1CA.L SOCIETY. TRANSACTIONS. H. T. BROWN, LL.D., F.R.S. A. W. CKOSSLEY, D.Sc., Ph.D. WYNDHAM R. DUNSTAN, M.A., LL.D., M. 0. FORSTER, D.Sc., Ph.D. P. F. FRANKLAND, LL.D., F.R.S. F.R.S. H. MCLEOD, F.R.S. E. J. MILLS, D.Sc., LL.D., F.R.S. Sir W. RANSAY, K. C. R., LL.D., F. R.S. A. SCOTT, D.Sc., F.R.S. MT. A. TILDEN, D.Sc., F.R.S. W. P. WYNNE, D.Sc., F.R.S. @hitar : G. T. MORGAN, D.Sc. Sulr-@f;bifor : A. J. GREENAWAY. 1904. Vol. LXXXV. Part I1 LONDON: GURNEY & JACKSON, 10, PATERNOSTER ROW. 1904.RICHARD CLAY & SONS, LIMITED, BREAD STREET HILL, E.C., AND BUNQAY, SUFFOLK.C O N T E N T S . PAPERS COXXUNICATED TO THE CHEMICAL SOCIETY. PACE 1.-The Estimation of Metliyl Alcohol in presence of Ethyl By THOMAS EDWARD THORPE, C.B., F.R.S., and 11.-Halogen Derivatives of Diphenyl and Dihydroxydiphenyl. 111.-Separation and Estimation of Silver Cyanide and Silver Chloride. By ROBERT HEXRY ADERS PLIMMER, D Sc. 1V.-Action of Malt Dkstase on Potato Starch Paste. By V.-The Action of Halogens on Compounds containing the V1.-Derivatives of Menthyl Cyanoacetate.By DOUGLAS AN- VII. -Optically Active Esters of P-Ketonic and P- Aldehydic Part IV. Condensation of Aldehydes with Menthyl By ARCHIE CECIL OSUORN HANN and ARTHUR V1II.-Notes on some Natural Colouring Matters. By ARTHUR 1X.-The Four Optically Isomeric &Men thylamines and their X.-Peroxylaminesu1phon:ttes and Hydroxylaminetrisulph- By TAMEMASA Alcohol. JOHN HOLXES . . 1 By JOHN CANNELL CAIN . . 7 (Grocers’ Company’s Ilesearch Student) . . 12 BERNARD F. DAVIS, B.Sc., and ARTHUR R. LINU . . 16 Carbonyl Group. By ARTHUR LAPWORTH . . 30 DERSON BOWACK and ARTHUR LAPWORTH . . 42 Acids. Acetoacetate. LAPWORTR . . 46 GEORGE PERKIN, F.R.S., and SAMUEL PHIPPS . . 56 Salts. By FRANK TUTIN and FREDERIC STANLEY KIPPING . 65 onates (Sulphazilates and Metasulphazilates). HAGA, D.Sc.. . 78 XI.-Peroxylaminesulpho~lic Acid. By EDWARD DIVERS . . 108 XI1.-Constitution of Nitric Peroxide. By EDWARD DIVERS . 110 XII1.-The Solubility Curves of the Hydrates of Nickel Sulphate. By BERTRAM DILLON STEELE, D.Sc., and F. M. G. JOHNBON . . 113 X IV.--The Relative Strengths of the Alkaline Hydroxides and of Ammonia as Measured by their Action on Cotarnine. By JAMES JOHNSTOX DOBBIE, M.A., D.Sc., ALEXANDER LAUDER, B.Sc., and CHARLES KENNETH TINKLER, Research Student of the University of Edinburgh . . 121i v CONTENTS. XV.-uaa-Dimethylbutane-u/38-tricarboxylic Acid, y-Keto-PP-di- methylpentamethylene-a-carboxylic Acid, and the Synthesis of Inactive a-Campholactone, of Inactive a-Campholytic Acid, and of P-Campholytic Acid (isoLauronolic Acid).By WILLIAM HENRY PERKIN, jun., and JOCELYN FIELD TBORPE . XVI. - o-Nitrobenzoylacetic Acid. By EDWARD RUSHTONEED- HAM and WILLIAM HENRY PERKIN, jun. XVI1.-The cis- and tram-Modifications of aay-Trimethyl- glutaconic Acid. By WILLIAM HENRY PERKIN, jun., and ALICE EMILY SMITH, B.Sc., 1851 Exhibition Scholar of University College, Bangor . XVIII. -Derivatives of P-Resorcylic Acid and of Protocatechuic Acid. By WILLIAM HENRY PERKIN, jun., and EMANUEL SCHIESS . X1X.-The Formation of Phloroglucinol by the Interaction of Ethyl Malonate with its Sodium Derivative. By CHARLES WATSON MOORE . XX.-The Resolution of dLMethylhydrindamine. Isomeric Salts of d- and LMethylhydrindamines with d-Chloro- camphorsulphonic Acid. By GEORGE TATTERSALL, B.Sc., XX1.-The Influence of Substitution in the Nucleus on the Rate of Oxidation of the Side-chain. I. Oxidation of the Mono- and Di-chlorotoluenes. By JULIUS BEREND COREN and JAMES MILLER . XXI1.-Derivatives of Highly Substituted Anilines. By FREDERICK DANIEL CHATTAWAY and JOHN MELLO WADMORE . XXII1.-The Condensation of Furfuraldehyde with Sodium Succinate. By ARTHUR WALSH TITHERLEY and JAMES FREDERICK SPENCER, B.Sc. XXIV,-The Constitution of Epinephrine. By HOOPER ALBERT DICKINSON JOWETT . XXV.-The Resolution of up-Dihydroxy butyric Acid in to its Optically Active Constituents. By ROBERT SELBY MORRELL and EDWARD KENNETH HANSON . Part I. Reactions with the Halogens and other Inorganic Sub- stances. By JAMES DEWAR and HUMPHREY OWEN JONES . Part 11. Reaction with Aromatic Hydrocarbons in presence of Aluminium Chloride.Synthesis of Aldehydes and Anthracene Derivatives. By JAMES DEWAR and HUMPHREY OWEN JONES . XXVII1.-Optically Active Nitrogen Compounds. d- and I-Phenylbenzylmethylethylammonium Salts. By HUMPHREY OWEN J O ~ E S . , XXV1.-The Chemical Reactions of Nickel Carbonyl. XXVI1.-The Chemical Reactions of Nickel Carbonyl. PAUE 128 148 155 159 165 169 174 179 183 192 197 203 212 223CONTENTS. V PAGE XX1X.-Diortho-substituted Benzoic Acids. Part V. Forma- tion of Salts from Diortho-substituted Benzoic Acids and Organic Bases. By JOHN JOSEPH SUDBOROUGH and WILLIAM ROBERTS . . . . 234 XXX.-Studies on the Electrolytic Oxidation of Phenols. Part I. By ARTHUR GEORGE PERKIN and FREDERICK MOLLWO PERKIN . . 243 XXX1.-The Intel dependence of the Physical and Chemical Criteria in the Analysis of Butter-fat.By THOMAS EDWARD THORPE, C.B., F.R.S. . . 248 XXXI1.-A Simple Thermostat for Use in Connection with the Refractometric Examinxtion of Oils and Fats. By THOMAS EDWARD THORPE, C.B., F.R.S. . . 257 XXXII1.- The Action of Nitrogen Sulphide on Organic Substances. Part I. By FRANCIS ERNEST FRANCIS and OLIVER CHARLES MINTY DAVIS . , 259 XXX1V.-Aromatic Compounds obtained from the Hydro- aromatic Series. Part I. The action of Bromine on 3:5-Dichloro-l : 1 -dimethyl-A2'4-dihydrobenzene. By ARTHUR WILLIAM CROSSLEY . * * . . 264 XXXV.-A Microscopical Method of Determining Molecular Weights. By GEORGE BARGER, Scbolar of King's College, Cambridge. . . 286 Part XIII. Action of Nitrogen Peroxide on 1-Nitrocamphene.By MARTIN ONSLOW FORSTER and FRANCES MARY GORE MICKLETHWAIT . 325 XXXVII. T h e So-called '' Hydrocellulose." By ARTHUR LANDAUER STERN, D.Sc. . . 336 XXXVII1.-Intramolecular Rearrangement in Derivatives of the Aromatic Aminoketones. By FREDERICK DANIEL CHATTAWAY . . 340 XXX1X.-The Separation of p-Crotonic Acid from a-Crotonic Acid. By ROBERT SELBY MORRELL and ALBERT ERNEST XL.-Certain Organic Phosphorus Compounds. By AUGUSTUS XL1.-The Action of Sodium Hypochlorite on the Aromatic By HENRY STANLEY RAPER, JOHN THOMAS XLI1.-The Esterification of r-Mandelic Acid by Menthol and XLII1.-Isomeric Change of Diacylanilides into Acylamino- XL1V.-The Constitution of Phenolphthalein. By ARTHUR XXXV1.-Studies in the Camphane Series. BELLARS . . 345 EDWARD DIXON, M.D.. 350 Sulphonamides. THOMPSON, and JULIUS BEREND COHEN . . 371 Borneol. By ALEXANDER MCKENZIE . . 378 ketones. By FREDERICK DANIEL CHATTAWAY . . 386 GEORGE GREEN ftnd ARTHUR GEORGE PERKIN . . 398vi CON TENTS. XLV.-Freezing Point Curves of Dynamic Isomerides : Ammonium Thiocyanate and Thiocarbamide. By ALEXANDER FINDLAY . XLVI. -A Note on Phenyldimethylallylammonium Compounds. By ALFRED WILLIAM HARVEY . XLVI1.-A Note on the Composition of Distilled Oil of Limes and a New Sesquiterpene. By HERBERT EDWARD BURGESS and THEODORE HENRY PAGE . XLVII I .- 8-K etohexah ydrobenzoic Acid. By WILLIAM HENRY PERRIN, jun. . XLIX.-The Arrangement in Space of the Groups Combined with the Tervalent Nitrogen Atom. By FREDERIC STANLEY KIPPINQ and ARTHUR HENRY SALWAY .L.-Contributions to the Knowledge of the P-Diketones. By SIEGFRIED RUHEMANN and EDWIN ROY WATSON. L1.-The Formation of Periodides in Organic Solvents. By HARRY MEDFORTH DAWSON . Annual General Meeting . Presidential Address to the Chemical Society THE FARADAY LECTURE. Elements and Compounds. By WILHELM OSTWALD . LI1.-Mercuric Nitrate and its Decomposition by Heat. By PRAPULLA CBANDRA RAY, D.Sc. (Edin.) LTI1.-The Reduction of 2:6-Dinitrotoluene with Hydrogen Sulphide. By JULIUS BEREND COHEN and JOSEPH MARSHALL L1V.-Studies in the Acridine Series. Part I. By JOHN JACOB Fox and JOHN THEODORE HEVITT LV.-The Acid Esters of Methyl Substituted Succinic Acids. By WILLIAM ARTHUR BONE, JOHN JOSEPH SUDBOROUGH, and CHARLES HESRY GRAHAM SPRANRLING . LV1.-Chemical Dynamics of the Alkyl Iodides.By KATHARINE ALICE BURKE and FREDERICK GEORGE DONNAN LV1I.-Isomeric Change of Diacylanilides into Acylamino- ketones. Transformation of the Dibenzoyltoluidines into the Isomeric Benzoylaminomethylbenzophenones. By FREDERICK DANIEL CHATTAWAY and WILLIAM HENRY LEWIS LVII1.-Estimation of Hydrogen Peroxide in the presence of Potassium Persulphate by means of Potassium Perman- ganate. By JOHN ALBERT NEWTON FRIESD, M.Sc. . LIX.-The Heat of Formation of Glucinum Chloride. By JAMES HOLMS POLLOK, B.Sc. . LX.-The Action of Ethyl P-Iodopropionate on Ethyl Disodio- ethanetetracarboxylate. By OSWALD SILBERRAD, Yh.D. . . . . . PAGE 403 412 414 416 438 45 6 467 477 493 506 523 527 529 534 555 589 597 603 61 1CONTENTS. vii PAGE LX1.-A Comparison of the Prodiicts of the Hydrolysis of Potato Starch with those obtained from Cereal Starches.By JAMES OSULLIVAN . . 616 LXI1.-A Lzevorotatory Modification of Quercitol. By FREDERICK BELDING POWER and FRANK TUTIN . . 624 LXII1.-The Constituents of the Essential Oil of Californian Laurel. By FREDERICK BELDINO POWER and FREDERIC HERBERT LEES . . 629 LX1V.-Some Derivatives of Umbellulone. By FREDERIC HERBERT LEES . . . 639 LXV. -Picry1 Derivatives of Urethanes and Thiourethanes. By JAMES CODRINGTON CROCKER, B.A., and FRANK HAROLD LOWE, B.Sc. . . 646 Part I. Synthesis of Terpin, Inactive Terpineol, and Dipentene. By WILLIAM HENRY PERKIN, jun. . . . 654 LXVI1.-Ammoniacal Double Chromntes and Molybdates. By SAMUEL HENRY CLIFFORD BRIGGS . . 672 LXVI.11.-The Hexahydrated Double Chromates. Magnesium and Nickel Compounds.By SAMUEL HENRY CLIFFORD BRIGGS . . 677 LX1X.-Reduced Silicates. By CHARLES SIMMONDS, B.Sc. . 681 LXX.-Studies on Optically Active Carbimides. Part I. By ALLEN NEVILLE, B.So. (Lond.), and ROBERT HOWSON PICKARD . . 685 LXX1.-Hydrocellulose. By CHARLES FREDERICK CROSS and EDWARD JOHN BEVAN . . 691 LXXI1.-The Slow Combustion of Ethane. By WILLIAM ARTHUR BONE and WILLIAM ERNEST STOCKINGS . . 693 LXXII1.-Studies in the Tetrahydronaphthalene Series. Part 11. Halogen Derivatives of ur-Tetrahydro-/3-nnph- thylamine. By CLARENCE SMITH, D.Sc. . . 728 LXX1V.-Studies in the Tetrahydronaphthalene Series. Part 111. Reaction between ar-Tetrahydro-/3-naphthyl- amine and Formaldehyde. By CLARENCE SMITH, D.Sc. . 732 LXXV.-A Study of the Substitution Products of ui*-Tetra- hydro-a-naphthylamine.4-Bromo-ar-tetrahydro-a-naphthyl- amine and ar-Tetrahydro-a-naphthylamine-4-sul phonic Acid. By GILBEKTHOMAS MORGAN, FRANCES XARY GORE MICKLE- THWAIT, and HERBERT BEN WINFIELD . . 736 LXXV1.-The Action of Nitrosyl Chloride on Pinene. By WILLIAM AUGUSTUS TILDEN , . . . 759 LXV1.-Experiments on the Synthesis of the Terpenes.... V l l l CONTENTS. LXXVI1.-The Comparison of the Rotation-values of Methyl, Ethyl, and n-Propyl Tartrates at Different Temperatures. By THOMAS STEWART PATTERSON . LXXVIIL-A Revision of the Atomic Weight of Rubidium. By EBENEZER HENRY ARCHIBALD. . LXX1X.-The Action of Sodium Methoxide and its Homologues on Benzophenone Chloride and Benzylidene Chloride. Part 11. By JOHN EDWIN MACKENZIE and ALFRED FRANCIS JOSEPH .LXXX.-The Formation of Periodides in Nitrobenzene Solution. Part 11. Periodides of the Alkali and Alkaline Earth Metals. By HARRY MEDFORTH DAWSON and ETHEL ELIZABETH GOODSON, B.Sc. LXXX1.-Caproylthiocarbimide. By AUGUSTUS E. DIXON, M.D. LXXXI1.-The Action of Ihdium Rays on the Halides of the By WILLIAM LXXXII1.-The Viscosity of Liquid Mixtures. Part I. By ALBERT ERNEST DUNSTAN, B.SC. LXXXIV. -The Action of Heat on a-Hydroxycarboxylic Acids. Part I. a-Hydroxystearic Acid. By HENRY ROKDEL LE SUEUR . LXXXV.-The Constituents of Chaulmoogra Seeds. By FREDERICK BELDING POWER and FRANK HOWORTH GORNALL . LXXXV1.-The Constitution of Chaulmoogric Acid. Part 'I. By FREDERICK BELDING POWER and FRANK HOWORTH GORNALL . By OSWALD SILBERRAD, Ph.D., and THOMAS HILL EASTERFIELD, M.A., Ph. D. LXXXVII1.-The Nitration Products of the Isomeric Dichloro- benzenes. By PERCIVAL HARTLEY and JULIUS BEREND COHEN . LXXX1X.-The Fermentation of the Indigo-plant. By CYRIL BERGTHEIL . XC.-Studies in the Uarnphane Series. Part XIV. isoNitroso- camphor. By MARTIN ONSLOW FORSTER . XC1.-The Vapour Density of Hyclrazine Hydrate. By ALEXANDER SCOTT . XCIL-The Basic Properties of Oxygen. Additive Compounds of the Halogen Acids and Organic Substances and the Higher Valencies of Oxygen. Asymmetric Oxygen. By EBENEZER HENRY ARCHIBALD and DOUGLAS MCINTOSH . XCII1.-Limonene Nitrosocyanides. By WILLIAM AUGUSTUS TILI)EN and FREDERICK PEACOCK LEACH Alkali Metals and Analogous Heat Effects. ACKROYD . LXXXVIL-Studies on Ethyl Carboxyglutarate.. PAGE 765 776 790 796 807 81 2 81 7 S27 838 85 1 862 865 870 892 913 919 931CONTENTS. ix PAGE XC1V.-Estimation of Hydroxyl Groups in Carbon Compounds. XCV.-Influence of Moist Alcohol and Ethyl Chloride on the Boiling Point of Chloroform. By JOHN WADE, D.Sc., and HORACE FINNEMORE, A.I.C. . 938 XCV1.-The Mechanical Andtlysis of Soils and the Composition of the Fractions Resulting Therefrom. By ALFRED DANIEL HALL, M.A. . . 950 XCVI1.-The Effect of the Long-continued Use of Sodium Nitrate on the Constitution of the Soil. By ALFRED DANIEL HALL, M.A. . . 964 XCVIIL-The Action of Acotyl Chloride on the Sodium Salt of Diacetylacetone, and the Constitution of Pyrone Com- pounds. By JOHN NORMAN COLLIE, F.R.S. . 971 XC1X.-Note on the Hydroljsis of Starch by Diastase.By JOHN SIMPSON FORD . . 980 C.-Imino-ethers and Allied Compounds Corresponding with the Substituted Oxamic Esters. By GEORGE DRUCE LANDER 984 C1.-The Additive Products of Benzylideneaniline with Ethyl Acetoacetate and Ethyl Methylacetoacetate. By FRAA’GIS ERNEST FRANCIS and MILLICENT TAYLOR . . 998 CI1.-Notes on Analytical Chemistry. By GILBERT THOMAS MORGAN . . 1001 CII1.-The Constitution of Hydrastinine. By JAMES JOHN- STON DOBBIE, D.Sc., F.R.S., and CHARLES KENNETH TINKLER, Research Student of the University of Edinburgh, 1005 CIV. -The Absorption Spect’rum of p-Nitrosodimethylaniline. , 1010 CV.-The Electrolytic Estimation of Minute Quantities of Arsenic. By HENRY JULIUS SALOMON SAND, Ph.D., M.Sc., and JOHN EDWARD HACKFGRD . . 1018 CV1.-The Ultra-violet Absorption Spectra of Certain Enol-keto- tautomerides.Part I. Acetylacetone and Ethyl Aceto- acetate. By EDWARD CEARLES CYRIL BALY and CECIL CVI1.-The Action of Chromyl Chloride on Stilbene, Styrene, and Phenanthrene. By GEORGE GERALD HENDERSON and THOMAS GRAY . . 1041 CVII1.-Stereoisomeric Glucoses and the Hydrolysis of Gluco- sidic Acetates. By EDWARD FRANKLAND ARMSTRONG (Salters’ Company’s Research Fellow) and PAUL SEIDELIN ARUP C1X.-The Stereoisomeric Tetramethyl Methylglucosides and Tetramethyl Glucose. By THOMAS PURDIE, F.R.S., and JAMES COLQUHOUN IRVINE, Ph.D., D.Sc., Carnegie Fellow By HAROLD HIBBERT and JOHN JOSEPH SUDBOROUGH . . 933 By WALTER NOEL HARTLEY, D.Sc., F.R.S. HENRY DESCH, D.Sc. . 1029 . 1043 . 1049X CONTENTS. PAGE CX.-The Alkylntion of Galactose.By JAMES COLQUHOUN IRVINE, Ph.D., D.Sc., Carnegie Fellow, and ADAM CAMERON, M.A., B.Sc. . . 1071 CX1.-Ionisation and Chemical Combination. By JAMES WALLACE WALKER . . 1082 CXI I.-Ionisation and Chemical Combination in the Liquefied Halogen Hydrides and Hydrogen Sulphide. By JAMES WALLACE WALKER, DOUQLAS MCINTOSH, and EBENEZER ARCHIBALD . . 1098 CXII1.-Some Compounds of Aluminium Chloride with Organic Substances containing Oxygen. By JAMES WALLACE WALKER and ARTHUR SPENCER . . 1106 CX1V.-A Method for the Rapid Ultimate Analysis of Certain CXV.-The Influence of Solvents on the Rotation of Optically Active Compounds. Part V. The Optical Activity of Certain Tartrates in Aqueous Solution. By THOMAS STEWART PATTERSON . . 1116 CXV1.-The Influence of Solvents on the Rotation of Optically Active Compounds.Part VI. The Relationship between Solution-volume and Rotation of the Alkyl and Potnssium Alkyl Tartrates in Aqueous Solution. By THOMAS STEWART PATTERSON . . 1153 CXVI1.-The Comparative Nitrifying Power of Soils. By SYDNEY FRANCIS ASHBY, B.Sc., Carnegie Research Scholar . 1158 CXVII1.-The Action of Organic Rases on Olefinic Ketonic Compounds. By SIEGFRIED RUHEMANN and EDWIN ROY WATSON . . 1170 CX1X.-Sulphonphenylchloroamides and Sulphontolylchloro- amides. By FREDEKICK DANIEL CHATTAWAY . . 1181 CXX.-Studies in the Camphaoe Series. Part XV. Bornyl- carbimide. By MARTIN ONSLOW FORSTER and HERBERT MOORE ATTWELL . . 1188 CXX1.-Halides of the Acridines and Naphthacridines. By ALFRED SEXIER and PERCY CORLETT AUSTIK ., 1196 CXXI1.-Reactions Involving the Addition of Hydrogen Cyanide t o Carbon Compounds. Part 11. Cyanohydrins regarded as Complex Acids. By ARTHUR LAPWORTH . . 1206 CXXII1.-Reactions Involving the Addition of Hydrogen Cyanide to Carbon Compounds. Part 111. Action of Potass- ium Cyanide on Mesityl Oxide. By ARTHUR LAPWORTH . 1214 CXX1V.-The Bromination of Phenols. By JOHN THEODORE HEWITT, JAMES KENNER, and HARRY SILK . . 1225 Organic Compounds. By JOHN NORMAN COLLIE . . 1111CONTENTS. xi PAGE CXXV.-6-Aminocoumarin. By GILBERT THOMAS MORGAN and FRANCES MARY GORE MICKLETHWAIT . . 1230 CXXV1.-The Resin Acids of the Conifer%. Part I. The Con- stitution of Abietic Acid. By THOMAS HILL EASTERFIELD and GEORGE BAGLEY . . 1238 CXXVI1.-Studies in Asymmetric Synthesis. I.Reduction of Menthyl Benzoylformate. 11. Action of Magnesium Alkyl Haloids on Menthyl Benzoylformate. By ALEXANDER MCKENZIE . . 1249 CXXVII1.-The Relation of Position Isomerism to Optical Activity. 11. The Rotation of the Menthyl Esters of the Isomeric Chlorobromobenzoic Acids. By JULIUS BEREND COHEN and HENRY STANLEY RAPER . . 1263 CXX1X.-The Relation of Position Isomerism to Optical Activity. 111. The Rotation of the Menthyl Esters of the Isomeric Iodobenzoic Acids. By JULIUS BEREND COHEN and HENRY STANLEY RAPER . . 1271 CXXX.-The Chlorination of the Trichlorotoluenes in Presence of the Aluminium-mercury Couple. The Constitution of the Tetmchlorotoluenes. Part V. By JULIUS BEREND COHEN and HENRY DRYSDALE DAKIN . . 1274 CXXX1.-The Chemical Dynamics of the Reactions bet ween Sodium Thiosul phate and Organic Halogen Compounds.Part I. Alkyl Haloids. By ARTHUR SLATOR, Ph.D. . 1286 CXXXI1.-The Nature of a Solution of Iodine in Aqueous Potassium Iodide. By CHARLES HUTCHENS BURGESS and DAVID LEONARD CHAPMAN . 1305 CXXXII1.-Note on Methyl Fluoride. By JOHN NORMAN COLLIE, 1317 CXXX1V.-Acetylenic Ketones. By EDWIN ROY WATSON . 1319 CXXXV.-A Note on Bergamot Oil and other Oils of the Citrus Series. By HERBERT EDWARD BURGESS and THEODORE HENRY PAGE . . 1327 CXXXV1.-The Resolution of Externally Compensated Dihydro- a-methylindole. By WILLIAM JACKSON POPE and GEORGE CLARKE, jun. . . 1330 CXXXVIL-The Vapour Pressure of Sulphuric Acid Solutions and the Molecular Condition of Sulphuric Acid in Concen- CXXXVII1.-Reactions Involving the Addition of Hydrogen Cyanide t o Carbon Compounds.Part IV. Addition of Hydrogen Cyanide to Benzylideneacetopheuone, By ARCHIE CECIL OSBORN HANN and ARTHUR LAPWORTH . . 135.5 CXXX1X.-The Bromination of Silver Cyanate. By GEORGE DEAN, M.A. . . 1370 trated Solution. By BRYCE CEIUDLEIGH BURT . . 1339xii CONTENTS. PAGE CXL.-The Decomposition of Chloral Hydrate by Sodium Hydroxide and by Certain Salts. By EMIL ALPHONSE WERNER . . 1376 CXL1.-Contributions to the History of Glyoxylic Acid. By REINRICH DEBUS, Ph.D., F.R.S. . . 1382 CXLII.--A1:3-Dihydrobenzene. By ARTHUR WILLIAM CROSSLEY , 1403 CXLII1.-The Colouring Matters of the Stilbene Group. I. By ARTHUR GEORQE GREEN . . 1424 CXL1V.-The Colouring Matters of the Stilbene Group. 11. By ARTHUR GEORGE GREEN, FRED MARSDEN, and FRED SCHOLEFIELD .. 1432 CXLV -Researches on Chromorganic Acids : the Behaviour of Chromic Hydroxide towards Oxalic Acid and certain other Organic Acids. By EMIL ALPHONSE WERNER . . 1438 CXLV1.-Olefinic Ketonic Compounds. By SIEGFRIED RUHEMANN 1451 CXLVI1.-The Colouring Principle of the Flowers of the Butea Yrondosa. By ARTHUR GEORGE PERKIN, F.R.S., and, in part, the late JOHN JAMES HUMIEL . . 1459 CXLVII1.-Reduction Products of u/3-Dimethylanhydracetone- bend, and Condensation Products of Benzaldehyde with Ketones, By FRANCIS ROBERT JAPP, F.R.S., and WILLIAN MAITLAND, B.Sc., Carnegie Fellow in the University of Aberdeen . . 1473 CXL1X.-Interaction of Sodium Phenylglycidate with Phenyl- hydrazine. By FRANCIS ROBERT JAPP, F.R.S., and WILLIAM MAITLAND, B.Sc., Carnegie Fellow in the University of AberJeen .. 1490 CL.-a-Benzoyl-P-trimethacetylstyrene. By FRANCIS ROBERT JAPP, F.R.S., and WILLIAM MAITLAND, B.Sc., Carriegie Fellow in the University of Aberdeen . . 1496 CL1.-The Fractional Hydrolysis of Amygdalinic Acid. iso- Amygdalin. By HENRY DRYSDALE DAKIN. . . 1512 CLI1.-Studies on the Dynamic Isomerism of a- and p-Crotonic Acids. Part I. By ROBERT SELBY MORRELL and EDWARD KENNETH HANSON . . 1520 CLII1.-The Effect of Colloidal Platinum on Mixtures of Caro’s Persulphuric Acid and Hydrogen Peroxide. By THOMAS SLATER PRICE and JOHN ALBERT NEWTON FRIEND . . 1526 CL1V.-Note on the Influence of Potassium Persulphate on the Estimation of Hydrogen Peroxide. By JOHN ALBERT NEWTON CLV.-The Action of Nitrogen Sulphide on Organic Substances.By FRAXCIS ERNEST FRANCIS and OLIVER CHARLES FRIEND . , 1533 Part 11. MINTY DAVIS . . 1535CONTES'I'S. xiii PAGE CLV1.-Stuclirs of Dynamic Isonicrihm. 11. Solubility a s a means of determiuing the Proportions of Dynamic Isomerides in Solution. Equilibrium between the Normal and Pseudo- Nitro-derivatives of C:tmphoy. By THOMAS MARTIN LOWRY, D.Sc., and W 7 ~ ~ , ~ ~ ~ ~ ~ ROBERTSON, A .R. C.S., Leathei sellers' Compnny's Research Fellow . . 1541 CLVI1.--8tntlies of Dynamic Isomerism. 111. Solubility as a means of Deterrnining the Proportions of Dynamic Isomerides in Soluticn. Equilibrium in Solutions of Glucose arid of CLVIII.-Position-Isoniei i-in and Optical Activity. The Methyl a d Ethyl Esters of Di-0-, -m-, and -p-nitrobenzoyltartaric Acids.By PERCY FAEADAY FrraNKrAAsu and JOHN HARGER, Ph.D. . 1571 CI,IX.--Thc Decomposition of Methylcsrbamide. By CHARLES EDWARD FAWSITT, D.Sc., Ph.D., Cnimegie Research Fellow . 1581 CLX.-The Isomerism of the Amidines of the Napht,halene Serieq (Fifth Communication on Anhydro-bases). By RAPIrAEr, (ILXT.-The Spec trim geiiwally atti-ibu tecl to '( Chlorophyll " :tntl its Relation to the Spectrum of Living Green Tissues. CLXI1.-Studies on C'oinparati\-e Cryoscopy. P a r t I T . The 13y Prrirn WILFRED CLXI 11.-The Infliience of Substitution in the Nucleus on tlie Rate of 0xitl;ition of the Sidc-chain. 11. Oxidation of the Halogon Derivatives of Toluene. EJ- JULIU-; EERFX-~ COHEN and JAMES MILLER . . 1622 CLXIV.-'rhe Composition of Be1 TI. By J.iar~s HOLXS POLLOK, B.sc. . 1630 CLXV.-The Combustion of Ethylene. By WILLIAM ARTHLR BONE and RIC'IIARD VERNON WHEELER . 1637 CLXV1.-Isomeric Change of Dincylanilides into Acylamino- ketones. Transfor~nation of Dibenzoylaminobenzoplienone into l-Benzoylarnir~o-2:4-clibenzoyibenzene. By FI~EDERICR DANIEL CEATTAWAY and \ I 7 1 ~ 1 , 1 ~ a r HESRP LEWIS . . 1663 CLXVI1.-The Grignard Reaction ;I ppliecl to the Esters of Hydroxy-acids. By PERCY FARADAY FI~ANKI AND and DOUGLAS FRAXK TWISS. M.Sc. . . 1666 CLXVII1.-The Coustitntion of P y azolidone Deri\ atires : ~-Phen~lazoisovaleric Acid and s-P-PheuylhSdl.azinobi~t,~~ic Acid. By &IITRA~I PREXTICE . . 1667 Galactose. By r l ' ~ ~ ~ ~ ~ ~ ~ MARTIN LO~VRY, D.Sc. . . 1551 MELDOLA, F.R.S.? aiid JOSEPH TIEXILY LAXE . . 1592 By WALTER NOEL IIARrLEY , . 1607 ROBERTSON, B.A. . . 1617 Aromatic Acids_in Ptlenol Solution.Sl\' C'ON'I'ENTS. I'\c,E CJ,XIX.-The Rcylnt ion of A niitlcc:. Ey ARTHUR WATNT TITHERLEY . . lG73 C!T,X;Y.-A Ku'cw S) 111 licsis cbf i d 'a1111 olactoiie and (lei t:iin 1)erivatives. 1:y l ) , \ ~ r r > TREVOI~ JONES n11d GIEORGE . 1691 CLXXI.-~~iniclechloi.oio(litlii.;. By ~ 4 1 : 0 1 ~ 1 < Ditr CE IJAiyi)m and HARRY EDWIN LAWS . . 1695 CJXXlI.--The l>ecompositiL~n of Hlliylene Iodide under tlie Influence of the Ioditle 1011. By AIWIIUII SLATOR, P1i.D. . 1697 CLSXIIJ.-4a Oleic Acid. By IImnY E o m m Lr: SUEUR . 1708 CT,XXW.--'l'he L4finity Constants of Aniline ancl its Deriva- tives. By ROI~ICKI~ CI~OSBIE FARVEII, D.Sc., Pli.D., and FIIEDERICK J O H S WAR rrr, M.Sc. CLXXV.-The Formittion :mil React ions of lmiiio-compounds. Part, I. Condensation of Xthyl Cyanoacetnte with i t s Hodiiim Derivative. By HAJIOLD BARON, FREDERICK GEORGE Pi<itciT REMFRY, and JOCELYN Fmrm TNORPE . . 1726 r y L.4T'rlsIlS \T,TA . lt13