VUl CONTENTS. 



Page 

 Mr. Robert Galloway on the Quality of Food of Artizans in an artificially 



heated Atmosphere 63 



Dr. J. H. Gladstone on a Crystalline Deposit of Gypsum in the Reservoir 



of the Ilighgate Waterworks 63 



M. Ed. Haeffely'.s Experiments on the Compounds of Tin with Arsenic ... 64 



Baron Von Liebig on a new Form of Cyanic Acid 64 



Dr. A. L. Lindsay on the Commercial Uses of Lichens 64 



Mr. Stevenson Macadam on the Chemical Composition of the Waters of 



the Clyde 64 



Dr. Maclagan on the Composition of Bread 66 



Dr. A. Matthiessen on the Metals of the Alkaline Earths 66 



Rev. Dr. J. G. Mac vicar on the possibility of representing by Diagrams the 

 principal Functions of the Molecules of Bodies 66 



Mr. E. Chambers Nicholson and Dr. David S. Price on the Chemical 

 Composition of some Iron Ores called ' Brass ' occurring in the Coal-Measures 

 of South Wales 66 



Dr. Normandy on the Marine Aerated Freshwater Apparatus 68 



Dr. F. Penny on a simple Volumetric Process for the Valuation of Cochineal... 68 



■ on the Manufacture of Iodine and other Products from Kelp ... 69 



on the Composition and Phosphorescence of Plate-Sulphate of 



Potash 69 



Professor A. C. Ramsay on a Process for obtaining Lithographs by the Photo- 

 graphic Process 69 



Mr. Thos. H. Rowney on the Composition of Vandyke-Brown 70 



■ on the Composition of two Mineral Substances em- 

 ployed as Pigments 70 



Mr. Balfour Stewart on certain Laws observed in the mutual action of 

 Sulphuric Acid and Water 70 



Dr. R. D. Thomson on the Condition of the Atmosphere during Cholera 71 



Dr. Aug. Vcelcker on Caseine, and a method of determining Sulphur and 

 Phosphorus in Organic Compounds in one operation 73 



Mr. C. Greville Williams on some of the Basic Constituents of Coal- 

 Naphtha 74 



Mr. G. F. Wilson on a Process for obtaining and purifying Glycerine, and on 

 some of its Applications 75 



GEOLOGY. 



Mr. Robert Allan on the condition of the Haukedalr Geysers of Iceland, 

 July 1855 75 



Mr. George Anderson on the Superficial Deposits laid open by the Cuttings 

 on the Inverness and Nairn Railroad 78 



Mr. Richard Banks on the recent Discoveiy of Ichthyolites and Crustacea in 

 the Tilestonesof Kington, Herefordshire 78 



Captain Sir Edward Belcher's Notice of the Discovery of Ichthyosaurus 

 and other Fossils in the late Arctic Searching Expedition, 1852-54 79 



Mr. James Bryce on the Glacial Phsenomena of the Lake District of England 80 



■ on a lately discovered Tract of Granite inArran 80 



Mr. Alexander Bryson on sections of Fossils from the Coal Formation of 

 Mid-Lothian 80 



