CONTENTS. VU 



Dr. AjfDiiEWS on tlie Dicliroism of the Vapour of Iodine "^ 



on the Action of Heat on Bromine qq 



Professor Apjohn's Remarks upon the Proximate Analysis of Saccharine 



Matters ' qq 



M. GusTAV BiscHOF on the Examination of Water for Sanitary purposes . . G7 



Mr. Philip Brahajx on the Crystallization of Metals by Electricity G7 



Mr. J. Y. Buchanan on the Rate of Action of Caustic Soda on a watery Solu- 

 tion of Chloracetic Acid at 100° C (37 



Dr. F. Chace-Calyekt on the Estimation of Sulphur in Coal and Coke 68 



Mr. John Dalzell and Dr. T. E. Thoupe on the Existence of Sulphur Di- 



chloride go 



Mr. Henry Deacon on Deacon's Chlorine Process as applied to the Manufac- 

 ture of Bleaching-powder on the larger Scale (59 



Professor Delffs on Sorbit qq 



on the Detection of Morphine by Iodic Acid 69 



Dr. J. H. Gladstone and Alfbed Teihe's Experiments on Chemical Dy- 

 namics r-Q 



Dr. J. H. Gladstone on Crystals of Silver 7X 



Dr. John Goodman on Fibrin 7.9 



• * t ^ 



Mr. William Hareness's Preliminary Notice on a New Method of Testing- 

 Samples of Wood-Naphtha ° 72 



The Rev. H. Highton on a Method of Preserving Food by Muriatic Acid . . 73 



Dr. J. Sinclair Holden on the Aluminous Iron-ores of Co. Antrim 74 



Professor N. Story Maskelyne on the Localities of Dioptase 74 



on Andrewsite 75 



Dr. T. Moffat on Ozonometry 7g 



The Abb:^ Moigno on the Photographic Post 76 



Mr. Pattison Mulr on an Antimony-ore from New Zealand 76 



Dr. T. L. Phipson on Regianic Acid 76 



Dr. J. Emerson Reynolds on the Action of Aldehyde on the two Primary 



Ureas 76 



on the Analysis of a singular Deposit from Well- 

 water 7g 



Dr. Otto Richter on the Chemical Constitution of Glycolic Alcohol and its 



Ileterologues, as viewed in the new light of the Typo-nucleus Theory .... 78 



Mr. William Chandler Roberts on the Molecular aiTangement of the Alloy 



of Silver and Copper employed for the British Silver Coinage 80 



Mr. E. C. C. Stanford on the Retention of Organic Nitrogen by Charcoal . . 81 



Mr. John Smyth, Jun., on Improvements in Chlorimetry 81 



Dr. T. E. Thorpe's Contributions to the History of the Phosphorus Chlorides 81 



Mr. C. R. C. Tichbobne on the Dissociation of Molecules by Heat 81 



Mr. C. ToMLiNSON on the behaviom- of Supersatiu-ated Saline Solutions when 



exposed to the open air go 



Mr. J. A. Wanklyn on the Constitution of Salts 83 



Mr. C. Gilbert Wheeler on the Recent Progress in Chemistry in the United 



States , , I ^ go 



