J 0 u R N A L J. DEWAR, LL.D., F.R.S. E. DIVERS, M.D., F.R.S. WYNDHAM K. DUXSTAX, M.A., F.R.S. H. J. H. FENTON, M.A., P.R.S. C. E. GXOVES, F.R.S. OF J. EMERSON REYNOLDS, n.Sc., F.M.S. A. Scor~, D.Sc., F. R. S. T. E. THORPE, LL.D., F.R.S. W. A. TILDEN, D.Sc., F.R.S. THE CHEMICAL SOCIETY, TRANSACTIONS. &;bitor : W. I?. WYNNE, D.Sc., F.R.S. %b-@;bitDK : A. J. GEEENAWAY 1801. VOl. LXXIX. LONDON: GURNEY L! JACKSON, 1, PATERNOSTER ROW. 1901.RlC€IARD CLAY & SONS, LIMITED, LONDON & BUNGAY.J O U R N A L OF THE CHEMICAL SOCIETY, TRANSACTIONS. H. E. ARMsmoNG, Ph.D., F.R.S. J. DEWAR, LL.D., F.R.S. E. DIVERS, M.D., F.R.S. WYNDHAM R. DUNSTAN, M. A., F. R.S. H. J. H. FENTON, M.A., F.R.S. C. E. GROVES, F.R.S. R. MELDOLA, F.R.S. J. EMERSON REYKOLDS, D.Sc., F.R.S. A.SCOTT, D.Sc., F.R.S. T. E. TEIORPE, LL.D., F.R.S. W. A. TILDE-V, D.Sc., F.R.S. @bitor : W. P. WYNNE, D.Sc., F.R.S. %julo-@bitor : A. J. GREENAWAY. 1901. Vol. LXXIX. Part I. LONDON: GURNEY & JACKSON, 1, PATERNOSTER ROW. 1901.RlC€IARD CLAY & SONS, LIMITED, LONDON & BUNGAY.J 0 U R N A 1, OF THE CHEMICAL SOCIETY TRANSACTIONS. H. E. ARMSTRONG, Ph.D., F.R.S. J. DEWAR, LL.D., F.R.S. E. DIVERS, M..D., F.R.S. WYNDHAM K. DUXSTAN, M A , F.R.S. H. J. H. FENTON, M.A., F.R.S. C. E. GROVES, F.R.S. R. MELDOLA, F.R.S. J. EMEESON HEYNOLDS, n.Sc., F.X.S. A. SCOW, D.Sc., F.R.S. T. E. THORPE, LL.D., F.R.S. W. A. TILDEN, D.Sc., F.R.S. cebitor : W. Y. WYNNE, D.Sc., F.R.S. %sub-6;bitor : A. J. GREENAWAY. 1901. Vol. LXXIX Part 11. LONDON: GURNEY St JACKSON, 1, PATERNOSTER ROW.1901.RICHARD CLAY & SONS, LIMITED, LONDON & BUNOAY.RICHARD CLAY & SONS, LIMITED, LONDON & BUNOAY.C O N T E N T S . PAPERS COMMUNICATED TO THE CHEMICAL SOCIETY. PA(*I.: R,nmmelsberg Memorial Lectnre. By H. A. MIERS, M.A., D.Sc., F.R.S., Waynflete Professor of Mineralogy in the University of Oxford . . 1 1.--2 : 3 : 5-Trichlorobenzoic Acid. By FRANCIS EDWARD MATTHEWS . . 43 TI.-The Nitration of Benzeneazosnlicylic Acid. By JOHN THEODORE HEWITT and J. J. Fox. . . 49 111.-Oxidation of Benzalthiosemicarbazone. By GEORGE YOUNG, Yh.D., and WILLIAM EYRE, B.Sc. . 54 1V.-A Simplified Nethod for the Spectrographic Analysis of Minerals. By WALTER NOEL HARTLEY, F.R.S., and HUGH RAMAGE, F.I.C., A.R.C.Sc.1. . . 61 V.-The Alkaloid of Hposcyanzus muticus and of Datum Stwmo- nium grown in EgFpt.By WYNDHAM R. DUNSTAN, F.R.S., and HAROLD BROWN, Assistant Chemist in the Scientific Y1.-The Inversion of the Optically Active ccc-Tetrahydro-/3- naphthylamines prepared by the aid of cl- and LBromo- camphorsnlphonic Acids. By WrLLIAnr JACKSON POPE and ALFRED WILLIAM HARVEY . . 74 V1I.-The Alkaloids of Corydalis cava. Conversion of Cory- bulbine into Corydaline. By JAMES J. DOBBIE, D.Sc., M.A., VIT1.-Relationships of Oxalacetic Acid. By HENRY J. HORST- MAN FENTON, F.R.S., and HUMPHREY OWEN JONES, B.B., B.Sc. 1X.-Interaction of Urethanes and Primary Benzenoid Amines. X.-Infracampholenic Acid, an Isomeride of Campholytic and XI.-Tutu. Part I. Tutin and Coriamyrtin. By THOMAS HILL EASTERFIELD, Professor of Chemistry, Victoria College, Wellington, N.Z., and BERNARD CRACROFT ASTON, Chemist Department of the Imperial Institute .. . 71 ALEXANDER LAUDER, B.Sc., and PHOTIOS G. PALIATSEAS . 87 9 1 By AUGUSTUS EDWARD DIXON, M.D. . . 102 isoLauronolic Acids. By MARTIN ONSLOW FORSTER . . 108 to the New Zealand Department of Agriculture . . . 120iv CONTENTS. XI1.-Some a-Alkyl Substitution Products of Glutaric, Adipic, XII1.-Santalenic Acid. By ALFRED C. CHAPMAN, F. C. . X1V.-The Interaction of Ethyl Sodiomethylmalonate and Mesityl Oxide. XV. -Ammonium Bromide and the Atomic Weight of Nitrogen. By ALEXANDER SCOTT . . XVI. -The Nitration of the Three Tolueneazophenols. By JOHN THEODORE HEWITT and JAMES HENRY LINDFIELD . XVI1.-The Bromination of o-Oxyazo-compounds and its bearing on their Constitution. By JOHN THEODORE HEWITT and HENRY ABLETT PHILLIPS .XVII1.-The Influence of Solvents on the Rotation of Optically Active Compounds. I. Influence of Water, Methyl Alcohol, Ethyl Alcohol, 92-Propyl Alcohol, and Glycerol ou the Rotation of Ethyl Tartrate. . X1X.-On the Union of Hydrogen and Chlorine. Parts I to 111. By J. W. MELLOR . XX.-On the Nature of Polyiodides and their Dissociation in Aqueous Solution. By HARRY MEDFORTH DAWSON, Ph.D., B.Sc., late 1851 Exhibitioner . XX1.-The Decomposition of Chlorates. Part 111. Calcium Chlorate and Silver Chlorate. By WILLIAM H. SODEAU, B.Sc. XXI1.-The Action of Ethylene Dibromide on Xylidine and $-Cumidine. By ALFRED SENIER and WILLIAM GOODWIN . XXII1.-The Action of Phenylcarbimide on Diphenyl-, Dialphyl-, and Dinaphthyl-diamines. By ALFRED SENIER and WILLIAM GOODP~IN .XXIV.-Note on the use of Pyridine for Molecular Weight Determinations by the Ebullioscopic Method. By WILLIAM Ross INNES, M.Sc., Ph.D. . XXV.-The Amide, Anilide, and 0- and p-Toluidides of Glyceric Acid. By PERCY FARADAY FRANKLAND, FREDERICK MALCOLM WHARTON, and HENRY ASTON XXVI. -The Preparation of Acetylchloraminobenzene and some related Compounds. By F. D. CHATTAWAY and X. J. P. ORTON . XXVI1.-The Preparation of Esters from other Esters of the same Acid. By T. 8. PATTERaoN and CYRIL DICKINSON . XXVII1.-Note on Tecomin, a Colouring Matter derived from the Heart-Wood of Bignonia Teconza. By THEOPHILUS H. LEE . XX1X.-Iron Nitride. By GILBERT JOHN FOWLER, M.Sc. (Vict.) and Pimelic Acids.By J. W. MELLOR . By ARTHUR WILLIAM CROSSLEY . By T. 8. PATTERSON . PAGE 126 134 138 147 155 160 167 216 238 247 254 258 26 1 266 274 280 284 285CONTENTS. V YAGE XXX.-The Heat of Formation and Constitution of Iron Nitride. By GILBERT JOHN FOWLER, M.Sc. (Vict.), and PHILIP JOSEPH HARTOG, B.Sc. (Lond. and Vict.) . XXX1.-The Preparation of lodic Acid. By ALEXANDER SCOTT and WILLIAM ARBUCKLE . XXXI1.-The Reaction between Ethyl Alcohol and Hydro- chloric Acid. By THOMAS SLATER PRICE, D.Sc. (late 1851 Exhibition Scholar) . XXXII1.-The Collection and Examination of the Gases pro- duced by Bacteria from certain Media. By WALTER CHARLES CROSS PARES and WALTER HENRY JOLLYMAN . XXX1V.-Tetramethylenecarbinol. By W. H. PERKIN, jun. . XXXV.-The Action of Aluminium Chloride on Camphoric Anhydride.XXXV1.-The Action of Hydrogen Bromide on Carbohydrates. By HENRY J. HORSTMAN FENTON, F.R.S., and MISS MILDRED GOSTLING, B.Sc. . XXXVI1.-The Ketonic Constitution of Cellulose. By CHARLES FREDERICK CROSS and EDWARD JOHN BEVAN. . XXXVII1.-Isomeric Hydrindamine Camphor-r-sulphonates. Racemisation of a-Bromocamphor. By FREDERIC STANLEY KIPPING, Ph.D., D.Sc., F.R.S. . XXX1X.-aa-Hydroxycamphorcarboxylic Acid. By ARTHUR LAPWORTH and EDGAR M. CHAPMAN XL.-The Bacterial Decomposition of Formic Acid into Carbon Dioxide and Hydrogen. By WALTER CHARLES CROSS PAKES and WALTER HENRY JOLLYMAN . . By F. H. LEES and W. H. PERKIN, jun. . XL1.-Preparation of Substituted Amides from the Correspond- ing Sodamides. By ARTHUR WALSH TITHERLEY, M.Sc., Ph.D.XLI1.-A New Method of Preparing Diacetamide. By ARTHUR WALSH TITHERLEY, M.Sc., P h .D. XLII1.-Note on Two Molecular compounds of Acetamide. By ARTHUR WALSH TITHERLEP, M.Sc., Ph.D. . XL1V.-A New Method fop the Measurement of Ionic Velocities in Aqueous Solution. By B, D. STEELE, B.Sc., 1851 Exhibition Scholar (Melbourne) . XLV.-Isomeric Salts containing Quinquevalent Nitrogen. Part VII. Benzylhydrindamine Bromocamphorsulphonates. By FREDERIC STANLEY KIPPING, Ph.D., I).Sc., F.R.S., and HAROLD HALL, A.I.C. XLV1.-Isomeric Hydrindamine Mandelates and Phenylchlor- acethydrindnmides. By FREDERIC STANLEY KIPPING, Ph.D., D.Sc., F.R.S., and HAROLD HALL, A.I.C. . 299 302 303 322 329 332 36 1 366 3 70 377 386 39 1 41 1 41 3 414 430 442vi CONTENTS. PAGE XLVII. -Organic Derivatives of Silicon.Triphenylsilicol and By F. STANLEY KIPPING, Ph.D., XLVII1.-The Bacterial Oxidation of Formates by Nitrates. By WALTER CHARLES CROSS PAKTW ant1 WALTER HENRY JOLLYMAN . 459 XL1X.-The Action of Acetylchloro- and Acetylbronio-amino- benzenes on Ainines and Phenylhydrazine. By F. D. CHATTAWAY and K. J. P. ORTON . . 461 L.-The Preparation of o-Cbloroaniline. By F. D. CHATTAWAY and K. J. P. ORTON . . 469 L1.-Condensation of Phenols with Esters of the Acetylene Series. Part IV. Benzo-y-pyrone ant1 its Homologues. By SIEGFRIED RUHEMANN and HAROLD W. BAUSOR, B.A. . 470 LI1.-Optical Activity of Certain Ethers and Estei-s. By Professor PHILIPPE A. GUYE . . 475 LII1.-The Influence of Solvents on the Rotation of Optically Active Compounds. Part 11.Influence of isoButyl Alcohol and of sec.Octy1 Alcohol (Methylhexylcnrbinol) on Ethyl Part 11, The Absorptive Powers of Dilute Solutions of Salts of the Alkali Metals. By H. M. DAWSON and J. MCCRAE . 493 LV.-Influence of a Heterocyclic Group on Rotatory Power ; the Ethyl and Methyl Esters of Dipyromucyltartaric Acid, By PERCY F. FRANKLAND and FRANCIS W. ASTON, late Forster Research Scholar . . 511 LV1.-Formation of Amides from Aldehydes. By ROBERT Howso~ PICKARD, D.Sc., PbD., and WILr,IaM CARTER . 520 LVI1.-Additive Compounds of a- and P-Naphthylamine with Trinitro-derivatives of Benzene. By JOHN J. SUDBOROUGH . 523 LVII1.-Acetylation of Arylamines. By JOHN J. SUDBOROUGH 533 L1X.-A Form of Tautomerisrn occurring amongst the Thio- cyanates of Electronegative Radicles. By AUGUSTUS EDWARD DIXON, M.D.. . 541 LX.-Halogen-substituted Thiosinamines. By AuausTus LX1.-Researches on Morphine. Part 11. By S. B. SCHRYVER and FREDERIC H. LEES . . 563 LXI1.-The Constitution of Pilocarpine. Part 11. By HOOPER ALBERT DICRINBON JOWETT, D.Sc. . . 580 LX1II.-Pheno-a-ketoheptamethylene and its Derivatives. By FE~EDERIC STANLEY KIPPING, Ph.D., D.Sc., F.R.S., and ALBERT E. HUNTER . . 602 Alkyloxysilicon Chlorides. D.Sc., F.R.S., and LORENZO L. LLOYD . 449 Tartrate. By T. S. PATTERSON . . 477 L1V.-MetakAmmonia Compounds in Aqueous Solution. EDWARD DIXON, M.D. . 553CONTENTS. vii PAOE LXIV. -The Chemical Action of Bacillzcs coli comnaunis and Similar Organisms on Carbohydrates and Allied Compounds. By ARTHUR HARDEN . . 610 LXV.-The Action of Alkyl Haloids on Aldoximes and Ketoximes.Part 11. Alkylated Oximes and isoOximes, and the, Constitution of Aliphatic Oximes. By WYNDHAM R. DUNSTAN and ERNEST GOULDING . . 628 LXV1.-The Supposed Existence of Two Isomeric Triethyl- oxamines. By WYNDHAM R. DUNSTAN and ERNEST GOULDING . . 641 LXVI1.-Studies in the Camphane Series. Part 11. Nitro- camphene, Aminocamphene, and Hydroxycamphene. By MARTIN ONSLOW FORSTER . . 644 LXVII1.-Studies in the Camphane Series. Part 111. Action of Hydroxylamine on the Anhydrides of Bromonitro- camphane. By MARTIN ONSLOW FORSTER . . 653 LX1X.-Contribution to the Chemistry of the Triazoles. 1-Methyl-5-hydroxytriazoles. By GEORGE YOUNG, Ph.D., and WILLIAM HENRY OATES, late 1851 Exhibition Scholar . 659 LXX.-Preparation of o-Dimethoxybenzoin and a new method of preparing Salicylaldehyde Methyl Ether, By JAMES C.IRVINE, B.Sc. (1851 Exhibition Research Scholar). (St. Andrews University) . . , 668 LXX1.-Researches on Moorland Waters. Part 11. On the Origin of the Combined Chlorine. By WILLIAM ACKROYD, F. I. C. . 673 LXXI1.--On the Estimation of Cocaine and on Cocaine Hydr- iodide Periodide. By W. GARSED, Salters’ Company’s Research Fellow in the Research Laboratory of the Pharma- ceutical Society of Great Britain, and J. N. COLLIE, F.R.8. 675 LXXII1.-Note on Acetonylacetone. By TEOMAB GRAY . . 681 LXX1V.-Condensation of Acetonylacetone with Hydrazine Hydrate. By THOMAS GRAY . , 682 LXXV.-Preparation and Properties of 2 : 6-Dibromo-4-nitroso- phenol. By MARTIN ONSLOW FORSTER and WILLIAM ROBERTSON, A.R.C.S.. 686 LXXV1.-Alkylation of Acylarylamines. By G. DRUCE LANDER , . 690 LXXVI1.-Preparation of A liphatic Imino-ethers from Amides. LXXVII1.-Preparation of Synthetical Glucosides. 11. By HUGH RYAN, M.A., D.Sc., and W. SLOAN MILLS, M.A. By G. DRUOE LANDER . . 701 704vi ii CONTENTS. LXX1X.-The Influence of Cane-sugar on the Conductivities of Solutions of Potassium Chloride, Hydrogen Chloride, and Potassium Hydroxide, with Evidence of Salt-formation in the last Case. By C. J. MARTIN, M.B., D.Sc., and ORME MASSON, M.A., D.Sc. LXXX.-A Modification of Gutzeit’s Test for Arsenic. By EDWIN DOWZARD . LXXXL-Tapour Pressure of Aqueous Ammonia Solution. Part I. By EDGAR PHILIP PERMAN, D.Sc. 1. . LXXXII. -Influence of Sodium Sulphate on the Vapour Pressure of Aqueous Ammonia Solution. By EDGAR PHILIP PERMAN, D.Sc.LXXXII1.-The Synthetical Formation of Bridged Rings. Part I. Some Derivatives of Dicyclopentane. By W. H. PERKIN, jun., and J. F. TI-IORPE [and in part, c. WALKER] . &XXXIV.-Lead Silicates in Relation to Pottery Manufacture. By T. E. THORPE, C.B., F.R.S., and CHARLES SIMMONDS, B.Sc. LXXXV.-Derivatives of Methylfurfural. By HENRY J. HORSTMAN FENTON, F.R.S., and MISS MILDRED GOSTLING, B.Sc. LXXXV1.-The symmetrical Chlorodibromo- and Dichlorobromo- anilines and Chloro- and Bromo-amino-derivatives of Chloro- bromo-acetanilides. By E. D. CHATTAWAY and K. J. P. ORTON . LXXXVI1.-The Replacement of Bromine by Chlorine in Anilines. LXXXVII1.-Optically Active Nitrogen Compounds and their Bearing on the Valency of Nitrogen.d- and Z-a-Benzyl- phenylallylmethylammonium Salts. By WILLIAM JACKSON POPE and ALFRED WILGIAM HARVEY . LXXX 1X.-Hydroxyoxamides. By ROBERT HOWSON PICKARD, D.Sc., Ph.D., and WILLIAM CARTER . XC.-Note on Pyromucylhydroxamic Acid. By ROBERT HOWSON PICKARD, D.Sc., Ph.D., and ALLEN NEVILLE, B.Sc. . XC1.-The Absorption Spectra of Cyanogen Compounds. By WALTER NOEL HARTLEY, F.R.S. ; JAMES J. DOBBIE, D.Sc., M.A. ; and ALEXANDER LAUDER, B.Sc. XCI1.-A New Method for the Determination of Hydrolytic Dissociation. By ROBERT CROSBIE FARMER, B.Sc. (Vict.), Ph.D. (Wurzburg), Priestley Scholar in the University of Birmingham . Annual General Meeting . Obituary Notices . By F. D. CHATTAWAY and K. J. P. ORTON . . PAGE 707 715 718 725 729 791 807 816 82 2 828 841 847 848 863 87 1 888CONTENTS.ix PAGE XCII1.-The Chlorine Derivatives of Pyridine. Part VII. Some Condensation Products. By W. J. SELL, M.A., F.R.S., and F. W. DOOTSON, M.A., D.Sc. . . 899 XC1V.-The Action of Lead Thiocyanate on the Chlorocar- bonates. Part TI. Carboxymethyl- and Carboxyamyl-thio- carbimides and their Derivatives. By ROBERT ELLIOTT DORAN . . 906 XCV.-A Laboratory Method for the Preparation of Ethylene. By G. S. NEWTH . . 915 XCV1.-Condensation of Phenols with Esters of the Acetylene Series. Part V. Homologues of Benzo-y-pyrone. By SIEGFRIED RUHEMANN . . 918 XCVI1.-The colloid form of Piperine, with especial reference to its Refractive and Dispersive Powers. By HENRY G. MADAN, M.A. . . 922 XCVII1.-The Condensation of Phenyl Ethyl Ketone and Benzaldehyde.By ROBERT DUNCOMBE ABELL, B.Sc. (Wales), 1851 Exhibition Scholar of the University College of North Wales, Bangor . 928 XCIX.-The Decomposition of Chlorates. Part IV. The Supposed Mechanical Facilitation of the Decomposition of C.-The Nutrition of Yeast. Part 111. By ARTHUR L. STERN, D.Sc. . 943 GI.-Oroxylin. By WILLIAM ARTHUR HARRISON NAYLOR and CHARLFS STANLEY DYER . , . 954 CI1.-Optically Active Dimethoxysuccinic Acid and its Deriva- tives. By THOMAS PURDIE, F.R.S., and JAMES C. IRVINE, B.Sc. . 957 CTI1.-The Influenc'e of Solvents on the Rotatory Powers of Ethereal Dimethoxysuccinates and Tartrates. By THOMAS PURDIE, F.R.S., and WILLIAM BARBOUR, B.Sc., Berry Scholar in Science . . 971 C1V.-The Occurrence of Paraffins in the Leaf of Tobacco. By T. E.THORPE, C.B., F.R.S., and JOHN HOLMES . . 982 CV.-Studies in the Camphane Series. Part IV. The Isomerism of a-Benzoylcamphor. By MARTIN ONSLOW FORSTER . . 987 CVI.-Studies in the Camphane Series. Part V. Halogen Derivatives of pCymene from substituted Nitrocamphanes. By MARTIN OHSLOW FORSTER and WILLIAM ROBERTSON, A.R.C.S.. . . 1003 CVI1.-Reduction of ay-Dibenzoylpropane and Dibenzoyl- diphenylbutadiene. By FRANCIS R. JAPP, F.R.S., and ARTHUR C. MICHIE, B.Sc. . . 1010 Potassium Chlorate. By WILLIAM H. SODEAU, B.Sc. . . 939X CONTENTS. PAGE CVII1.-Homologues of Anhydracetonebenzil. By FRANCIS R. JAPP, F.R.S., and ANDREW N. MELDRUM, B.Sc. . . 1024 C1X.-The Direct Union of Carbon and Hydrogen. Part 11. By WILLIAM A. BONE and DAVID 5. JERDAN . . 1042 CX.-On the Decomposition of Carbon Dioxide when submitted to Electric Discharge at Low Pressures, By J.NORMAN COLLIE, Ph.D., F.R.S. . ‘1063 Part 111. By H. M. DAW- SON and J. MCCRAE . . 1069 Part IV. The Influence of Temperature on the Dissociation of Copper-Ammonia gulphate. By H. M. DAWSON and 5. MCCRAE . . 1072 CXI1I.-Additional Notes on Dinitro-o-anisidine. Chemical Reaction in which one of the Products continues the same Reaction. By RAPHAEL MELDOLA, F.R.B., and JOHN VABGAS EYRE . . 1076 CX1V.-Some relations between Physical Constants and Con- stitution in Benzenoid Amines. Part 11. By PAUL GORDAN and LEONHARD LIMPACH . * . . . 1080 CXV.-The combined action of Diastase and Yeast on Starch- granules. By GEORGE HARRIS MORRIS, Ph.D,, B.Sc. . . 1085 CXV1.-Action of Bromine on the Three Tolueneazophenols.. 1090 CXVI1.-Nitrilosulphates. By EDWARDIVERS and TAMEMASA HAGA . . 1093 CXVIIL-Ammonium and other Imidosulphites. By EDWARD DIVERS and MASATAKA OGAWA . . 1099 CX1X.-Ethyl sec.Octy1 Tartrate and its Dibenzoyl and Diacetyl Derivatives. By JOHN MCCRAE. . . 1103 CXX.-The Aluminium-Mercury Couple. Part 111. Chlorina- tion of Aromatic Hydrocarbons in presence of the Couple. The Constitution of the Dichlorotoluenes. By JULIUS B. . 1111 CXX1.-The Esterification of 3-Nitrophthalic Acid. By ALEX. MCKENZIE, Grocers’ Company Research Scholar . . . 1135 CXXI1.-Derivatives of 3-Nitrotolyl-4-hydrazine. By FRANK GEO. POPE and JAB. MORTON HIRD . , 1141 CXXII1.-The Constituents of the Sandarac Resins. By THOMAS ANDERSON HENRY, D. Sc. (Lond.), Salters’ Com- pany’s Research Fellow in the Laboratories of the Imperial Institute .. 1144 By CORNELIUS O’SULLIVAN, F.R.S. 1164 CXI. -Metal-Ammonia Compounds in Aqueous Solution. Salts of the Alkaline Earth Metals. CXI1.-Metal-Ammonia Compounds in Aqueous Solution. By J. T. HEWITT and JOHN N. TERVET . COHEN and HENRY D. DAKIN, the Yorkshire College . CXX1V.-Gum Tragacanth.CONTENTS. xi PAUE CXXV.-Condensation of Phenols with Esters of the Acetylene Series. Part TI. By SIEGFRIED RUHEMANN and ERNEST WRABG, B.A. . . 1185 CXXV1.-The Hydrobromides of Undecylenic Acid. By JAMES WALKER and JOHN S. LUMSDEN . . 1191 CXXVI1.-n-Decanedicarboxylic Acid. By JAMES WALKER and JOHN S. LUMSDEN . . 1197 CXXVII1.-The Action of Sodium Methoxide and its Horno- logues on Bonzophenone Chloride and Benzal Chloride.By JOHN EDWIN MACKENZIE, D.Sc., Ph.D. CXX1X.-Action of the Chlorides of Phosphorus on Aromatic Ethers of Glycerol. Diaryloxyisopropylphosphorous Acids. . 1221 CXXX.-Autofermentation and Liquefaction of Pressed Yeast. By ARTHUR HARDEN and SYDNEY ROWLAND . . 1227 CXXX1.-Non-existence of the so-called Suboxide of Phosphorus. Part 11. By CHARLES HUTCHENS BURGESS and DAVID LEONARD CHAPMAN . . 1235 CXXXIL-The Action of A.mmonia on Metals at High Temperatures. By GEORGE THOMAS BEILBY and GEORGE GERALD. HENDERSON . , 1245 CXXXIII. -Condensation of Benzil with Dibenzyl Ketone. By GEORGE GERALI?) HENDERSON and ROBERT HENRY CORSTORPHINE, B.Sc. . . 1256 CXXX1V.-The Form of Change in Organic Compounds, and the Function of the a-meta-Orientating Groups. By ARTHUR LAPWORTH .. 1265 CXXXV.-The Constitution of Camphanic Acid and of Bromo- camphoric Anhydride. By ARTHUR LAPWORTH and WALTER HENRY LENTON . . 1284 CXXXV1.-The Chlorodibromo- and Dichlorobromo-benzenes. By WILLIAM HOLDSWORTH HURTLEY, D.Sc. (Lond.) . . 1293 CXXXVIL-Experiment s on the Production of Optically Active Compounds from Inactive Substances. By J. B. COHEN and C. E. WHITELEY. . . 1305 CXXXVIIL-The Products of the Action of Fused Potassium Hydroxide on Diliydroxystearic Acid. By HENRY RONDEL LESUEUR . . 1313 CXXX1X.-Note on the Supposed Formation of an Oxide of Hydrogen higher than the Dioxide. By WILLIAM RAMSAY, F.R.S. . . 1324 CXL.-The Electrolytic Reduction of Nitrourea. By G. W. F. HOLROYD . . 1326 CXL1.-The Constitution of Pilocarpine. Part 111. By HOOPER ALBERT DICKINSON JOWETT . , 1331 . 1204 By D. R. BOYD .xii CONTENTS. PAGE CXLII.--A New Synthesis of a-Ethyltricarballylic Acid. By HOOPER ALBERT DICKINSON JOWETT . . 1346 CXLII1.-Benzoylation of Fatty Acids in the Presence of Ammonia. Formation of Amides. By K. J. P. ORTON . 1351 CXL1V.-Liquid Nitrogen Peroxide as a Solvent. By PERCY FARADAY PRANKLAND, Ph.D., F.R.S., and ROBERT CROSBIE FARMER, M.Sc. (Vict.), Ph.D. . . 1356 CXLV. -The Action of Aluminium Chloride on Camphoric Anhydride. Part 11. By W. H. PERKIN, jun., and J. YATES. . . 1373 CXLVL-Brazilin and Hzematoxylin. Part I. By A. W. GILBODY, W. H. PERKIN, jun., and J. YATES . 1396 .xii CONTENTS. PAGE CXLII.--A New Synthesis of a-Ethyltricarballylic Acid. By HOOPER ALBERT DICKINSON JOWETT . . 1346 CXLII1.-Benzoylation of Fatty Acids in the Presence of Ammonia. Formation of Amides. By K. J. P. ORTON . 1351 CXL1V.-Liquid Nitrogen Peroxide as a Solvent. By PERCY FARADAY PRANKLAND, Ph.D., F.R.S., and ROBERT CROSBIE FARMER, M.Sc. (Vict.), Ph.D. . . 1356 CXLV. -The Action of Aluminium Chloride on Camphoric Anhydride. Part 11. By W. H. PERKIN, jun., and J. YATES. . . 1373 CXLVL-Brazilin and Hzematoxylin. Part I. By A. W. GILBODY, W. H. PERKIN, jun., and J. YATES . 1396 .