CONTENTS. "^^ 



Page 



Professor F. Grace Calvert on the Incrustations of Blast Furnaces 50 



Dr. J. H. Gladstone on the Salts actually present in the Cheltenham and 



other Mineral Waters 



on Nitroglycerine ^^ 



Mr. John Hobsley on the Conversion of Tannin into Gallic Acid 52 



on a New Method of instituting Post-mortem researches 



for Strychnia 



_^_ on Testing for Strychnia, Brucia, &c 53 



on a New Method of extracting the Alkaloids Strychnia 



and Brucia from Nux Vomica without Alcohol 54 



, -»s Experiments on Animals with Strychnia, and prohahle 



Reasons for the Non-detection of the Poison in certain cases 55 



Mr. J. B. LA^^'ES and Dr. Gilbert on the Products and Composition of 



Wheat-Grain 



Dr. Stevenson Macadam on the Detection of Strychnine 55 



Rev. W. IVIiTCHELL and Prof J. Tennant on a Series of Descriptive Labels 



for Mineral Collections in Public Institutions 57 



Ml-. William Odling on the Alkaline Emanations from Sewers and Cess- 

 pools 



. -^ on the Detection of Antimony for Medico-Legal 



Purposes 



Mr. W. R. Pearson on the Compounds of Chromium and Bismuth 58 



Mr. Charles Pooley on Engraving Collodion Photographs by means of 



Fluoric Acid Gas ^^ 



Rev. C. Pritchard on the Gases of the Grotto del Cane 58 



Professor A. Voelckeb on the Corrosive Action of Smoke on Building Stones 58 



on the Composition of American Phosphate of Lime . . 58 



on Basic Phosphates of Lime 58 



Mr. W. Sykes Ward on Albumiaized CoUodion 58 



Mr. P. J. WoHSLEY on a New Process for Making and Melting Steel 59 



Mr. Henry Wright on the Use of the Gramme in Chemistiy 60 



GEOLOGY. 



Lieutenant Ayton on Gold in India "" 



Mr. William H. Baily on Fossils from the Crimea 60 



Mr. J. S. BowEBBANK on the Origin of Siliceous Deposits in the Chalk For- 



J.- ....... DO 



mation 



Rev. P. B. Brodie on some New Species of Corals in the Lias of Gloucester- 



shire, Worcestershire, and Warwickshire 64 



on a New Species of Pollidpes in the Inferior Oolite near 



Stroud, in Gloucestershire 



Professor James Buckman on the Basement Beds of the Oolite 64 



on the Oolite Rocks of the Cotteswold Hills 65 



Mr. R. Etheridge on the Igneous Rocks of Lundy and the Bristol District. . 65 

 Professor Harkness on some New Fossils from the ancient Sedimentary Rocks 



of Ireland and Scotland 



on the Jointing of Rocks • • • • 65 



on the Lignites of the Giant's Causeway and the Isle of Mull 66 



