CONTENTS. Vll 



Page 

 Mr. Faraday's Additional Observations respecting the Mag- 

 neto-electric Spark and Shock 444 



Mr. A. T.Wood on the Action of Oxalic Acid upon Chloride 



of Sodium 445 



Prof. J. Phillips on Subterranean Temperature, as observed 

 at a Depth of Five Hundred Yards below the Level of the 



Sea, in Latitude 54° 55' North, November 15, 1834 446 



Proceedings of the Royal Society 451 



Geological Society 459 



New Books: — The Transactions of the Entomological Society 



of London, Vol. 1. Part I 462 



Discovery of Saurian Bones in the Magnesian Conglomerate 

 near Bristol — Experiments on the active Principle of Sarsa- 



parilla, by M. Poggiale 463 



Preparation of Cyanuret of Potassium — Composition of Lithic 



Acid 465 



Geological Survey of the United States 466 



Meteorological Observations 468 



Index 469 



