INCLUDING THE PROCEEDINGS OFTHE “SOCIETY OF PUBLIC ANALYSTS.”A Monthly JournaJ for the information of those interested in the purity of Foodand Drugs, aad in generd Analytical and Microscopical Research.[No. 44.1 E$;d { ,. ;gER. NOVEMBER, 1879. [PRICE 6d. ortoswbs@eys annum. P o s t 2 2 . 1G. W. WIGNER,A. H. ALLEN, F.C.S.A. DUPBE, PH.D., F.R.S., F.C.S.C. HEISCH, F.C.S.CONTENTS.J. MUTER, PH.D., M.A., F.C.8.G. W. WIGNER, F.C.S.OXIDATION OF SULPHUR IN CfA8 BY COMBUSTION.OBSERVATIONS ON THE IODIC ACID TEST FOR MORPHIA.NON-EXISTENCE OF NASCENT HYDROGEN ............ 204By W. C. Young,F.C.S ........................... 201By Dr. DiiprB, F.R.S. ............................ 203GAS REGULATORS .................................. 205SPECIFIC GRAVITIES OF FATS, RESIXS, &c.Heger ........................................... 206By Dr.b U M IN BAEINQ POWDER ..........................207NEW METEOD OF PREPARING SmPHURETTEDHYDROQEN .................................... 209CORRESPONDENCE .................................. 210ANALYSTS’ REPORTS ................................ 211LAW REPORTS ...................................... 212NOTES OF TEE MONTH ............................. 217CHEMICAL PATENTS ................................ 2u)BOOKS REOEIYED .................................. 220M. SACEKSON at GO.,65, BARBICAN, LONDON, E J . (nearly opposite the Aldersgate Street Station of the Metropolitan Railway).(J. ORME AND H. M. CAPNER,)FINEST BERLIN ScientificPORCELAIN. Apparatus.BOHEMIA NGLASS.GRA DUA TEDINSTRUMENTS.-HOFMA NN’SAPPARATUS.-ALSOELECTRICAL,GALVANIC,PN EUMA TICA PPA RA TUS,CEC., Bc.Pure GOMPL E 7 tChemicdg. SETS OFQUALITATIVE,QUA N TITA TI YE, -‘ 8 1!: AND ASSAYA PPA RA TUS.-P L A T TN E R’SBLOWPIPE.EGO€ R TZCARBON.ANDTHOMPSON’SFUEL TESTArPARATU SWHOLESALE AND EXPORT.Makers of Apparatus to the Laboratories of the Inland Revenue, Royal &send, Royal MilitaryAcademy, Science Schools, India OfBce, South Kensington, &c.Catalogues and Estimates sent on application, enclosing Business Card for T e r n , &cTHE ANALYST.WORKS BY DR.MUTER, M.A., F.C.S.,President of t h e Society of Public Analysts ; Public Analyst for Lambeth, Southwark,Bermondsey, Rotherhithe, Newington, and Wandsworth.Now ready, demy 8v0, with copious Tables, price 7s.6d.A N INTRODUCTION TO ANALYTICAL CHEMISTRY. For Medicaland Pharmaceutical Students.Now ready, royal 8v0, Second Edition, cloth, with Analytical Tables and copious Index, price 10s. 6d.A N INTRODUCTION TO PHARMACEUTICAL AND MEDICALCHEMISTY, Theoretica and Practical.‘‘ The book is one of a very useful and original kind, and is brought up to the latest date, tests and“ Amongst the best chemical treatises of the day, and in many respects superior to any that have yetprocesses published only a few months since being described in their proper places.”-Chemical News.been published. ”-Pub Zic Health.Third Edition, 600 pp., 8vo. Price 12s. 6d. A KEY TO ORGANIC MATERIA MEDICA.Analytical Chemists willfind this a concise and yet complete book of reference for the isolation and examination of theactive principles of drugs. Special appendix on the microscopic characters of the stwohes in food anddrugs. Copious index and qualitative courses or resins, &c.LONDON : BAILLI~E, TINDALL & Cox, 20, King William Street, Strand, and all Booksellers.By A, WPNTER BLYTH, M.R,C.S,, F.C,S,, Public Analyst for the County of Devon,NOW READY, crown 8v0, cloth, 12s. 6d.PaACTICAL CHEMISTRY (A Manual of). PART I: ANALYSIS OF FOODS-Flour, Bread, Milk, Butter, Cheese; Tea, Coffee, Cocoa; Alcoholic Liquids; Condiments. PART II:“Will be used by every DEWECTION OF PoIsorus-Organic or Inorganic. With Tables and Diagrams.Analyst.”-Lanoet.‘‘ Stands unrivalled for completeness of information.”-Sanitary Record.LONDON : CHARLES GRIFFIN & Co., Stationers’ Hall Court.Bv G, W, WIGNER, F.O.S., one of the Honorasy Secretaries of the Society of Publio Analysts ;Public Analyst for Greenwich, Plumstead, and Woolwich Districts.Price, ONE SHILLING.SEASIDE WATER. An Examination into the character of the Water Supply atthe Watering Places of England and Wales, being an abstract of a Series of Reports prepared forand published in the Sanitary Record during 1877-78, with Three Comprehensive Tables, giving Analysesof the Drinking Water at all the Sea-Coast Towns.KENT & Co., Paternoster Row, London ; and at all Railway Bookstalls.E. CETTI & CO,,MANUFACTURERS OF BAROMETERS, THERMOMEITERS, CHF,MICAL ANDPHILOSOPHICAL APPARATUS OF EVERY DESCRIPTION.Dr.Franklin’s Apparatus for Analysis of Water. Dr. MoLeod’s Modification for Water and Gas.Professor Bischof’s Apparatus for Evaporation of Water. Dr. Sprengel’s Mercurial Air Pumps of everyDrs. Russell and West’s Apparatus for Estimating Urea in Urine. Dr. Blaokley’s Apparatus for Ditto.11 and 31, Brooke Street, Holborn, London, Wholesale and for Exportation, and Rose CottageGlass Works, Pratt Street, Lambeth.form. Water Pumps for quick filtration. Dr. Mill’s Colorimeter.REGISTERED ENAMEL BACK URIN’E SEDIMENT TEST TUBES.THE ANALYST, Vols. I. & III,-(Vol. 11. out of Print.)INCLUDING the Proceedings of the Society of Public Analysts, and embracing alarge number of Original Papers on every branch of Chemical Analysis, with a comprehensiveEdited (under the direction of the Committee of Publication) by G. W. WIGNEB, F.C.S., andJ. MUTER, Ph.D., F.C.S.Published by B A I L L ~ E , TINDALL & Cox, King William Street, Strand, W.C.Index of Subjects and Names. Price, bound is cloth, 7s. ; in half-calf, 9s