THE QU ART E R LY JOURNAL OF THE CHEMICAL SOCIETY OF LONDON. W DE LA RUE PH.D. F.R.S. A W. HOFHANN LL.D. F.R.S. E.FRANKLAND PH,D. F,R,Se I W,A+ MILLER MDI F*R.S* LONDON HIPPOLYTE BAILLIERE 219 REGENT STREET AND 440 BROADWAY NEW PORK U.S. PARIS J. B. BAILLIERE RUE HAUTEFEUILLE MADRID BAILSY BAILLIERE CALLB DEli PBINCIPE. 1860. LONDON ! PXINTEU BY BhBRISON AND SONS O~T.~it~I”8 LANE w.0. CONTENTS OF THE TWELFTH VOLUME. PAGE On the Action of Bromine on Bromacetic Acid. By W. H:Perkin F.C.S. and B. F. Duppa Esq. $c. ............................................................................... 1 On some Minerals containing Arsenic and Sulphur from Chili. By Frederick Field ,..................................................,...............................................................8 On Titanic Acid. By E. Riley F.C.B..................................................................... 13 On the Constitution of Lactic Acid. By Dr. H. Kolbe ................................ ........ 15 Conversion of Lactic Acid into Propionic Acid By Dr. C. Ulrich .................... 23 On some Native Combinations of Oxide of Mercury with Oxide of Antimony. By Frederick Field ............................................................................................ 27 On a New Method for the Quantitative Estimation of Nitric Acid. By Dr. E. Pugh ............................................. ...............................................................,....35 New Volatile Organic Acids of the Mountain Ash Berry. By A. W. Hofmann 43 Analysis of the Water of Holywell North Wales. By James Barrat ................ 52 Discourse :-On the Composition of the Animal Portion of our Food and on its Relations to Bread. By J. H. Gilbert Ph.D.,F.C.S. .......,.....,.,............ 54 Analysis of the Water of a Spring at Billingborough Lincolnshire. By J. W. Kynaston .... ... ........................................,......................................,................ 57 Chemical Society of London. By Professor Hoffmann ............................... 62 On some Derivatives from the Olefines. By Frederick Guthrie Ph.D. ......,,.... 109 Note on Paviin. By G. G.Stokes Sec. R.S. ...... ........ ...........,..............,,...........126 On the Absorption of Hydrochloric Acid and Ammonia in Water. By Henry On Ammonia and its Derivatives. Discourse delivered to the Members of the E. Roscoe and William Dittmar ... .............,....,................................................ 128 iv CONTENTS. PAGE On Rases produced by Nitrous Substitution . By C . S. Wood ........................... 152 On the Action of Hydrochloric Acid upon Sulphide of Mercury in the presence of certain other substances . By Frederick Field ........................................ 158 On the Action of Boracic Acid upon the Salts of the more Volatile Acids at High Temperatures . By A . Norman Tate .................................................... 160 Anniversary Meeting of the Chemical Society ........................................................166 On the Action of Boracic Acid upon the Carbonates of the Alkalies and Alkaline Earths . By Charles L. Bloxam ................................................... 177 On the Colouring Matter of Madder. By Edward Schunck Ph.D. F.R.S. F.C.S. ................................................................................................................198 On the Polyatomic Alcohols . A Discourse delivered before the Fellows of the Chemical Society of London. By Dr . H.Debus F.C.S. ............................ 222 Action of Metals upon Iodide of Ethylene C4H41f By Carl Von Thann and 258 J. A Waiiklyn ....................................................................................................Researches on the Atomic Weight of Graphite. By B. C.Brodie F.R.S......... 261 On the Combination of Carbonic Oxide with Potassium . By 13. C. Brodie F.R.S. ........................................................................................................ 269 Decomposition of Gaseous Compounds by Electrical Incandescences. By Henry Buff and A . W.Hofmann....................................................................273 Proceedings at the Meeting8 of the Chemical Society ......................................... 290 Titles of Chemical Papers in British and Foreign Journals ............................. 297 Index................................................................................................................ 393