CONTENTS. V 



Page 

 M. Quetelet's Observations on Shooting Stars on the Nights 



of the 9th, 10th, and 11th of August 1838 252 



Dr. Schoenbein's Conjectures on the Cause of the peculiar Con- 

 dition of Iron 256 



Dr. J. Apjohn on the Specific Heats of the Gases as deduced 

 by himself compared with the more recent Results of Dr. 



Suerman 261 



Mr. Ivory's Remark on an Article of M. Poisson's Trait4 de 



M^canique (No. 593. Edition 2nde) 274 



Mr. C. Binks on some of the Phsenoraena and Laws of Action 

 of Voltaic Electricity, and on the Construction of Voltaic 



Batteries, &c. {continued') 276 



Mr. Faraday's Experimental Researches in Electricity. — 



Eleventh Series 281 



Proceedings of the Geological Society 299 



Continuation of the Scientific Memoirs 310 



Synaptasin 310 



Composition of the Blood 311 



On the Iodide of Amidin, by M. J. L. Lassaigne 312 



New Compound of Sulphate of Magnesia and "Water 313 



On Chloretheral, by M. Felix D'Arcet 313 



Formio-Benzoilic Acid 315 



Proportions of Gluten in Grain 315 



Oxide of Phosphorus 315 



Borates of Potash, by M. Laurent 317 



Cyanide of Gold 318 



Meteorological Observations 319 



NUMBER LXXXIII.— NOVEMBER. 



Mr. Ivory on a Principle laid down by Clairaut for deter- 

 mining the Figure of Equilibrium of a Fluid, the Particles of 

 which are urged by accelerating forces 321 



Prof. J. F. W. Johnston on a new Compound of Sulphate of 

 Lime with Water 325 



Prof. J. F. W. Johnston on the Composition of certain Mineral 

 Substances of Organic Origin. No. VI. Guyaquillite 329 



Mr. Laming on the primary Forces of Electricity 333 



Dr. J. Apjohn on the Specific Heats of the Gases as deduced 

 by himself compared with the more recent Results of Dr. 

 Suerman 339 



Mr. C. T. Jackson's Chemical Analysis of Meteoric Iron, from 

 Claiborne, Clarke County, Alabama 350 



Mr. Faraday's Experimental Researches in Electricity. — • 

 Eleventh Series {continued) 355 



G. T. H. Fechner's Justification of the Contact Theory of 

 Galvanism 367 



