CONTENTS OF VOL. XXIII. Vll 



Page 

 Notices respecting New Books : — 1 . Philosophical Theories and 

 Philosophical Experience. 2. Connection between Physio- 

 logy and Intellectual Philosophy. 3. On Man's power over 



himself to prevent or control Insanity 452 



Proceedings of the Geological Society 457 



Royal Astronomical Society 472 



On the Composition of Pechblende, by M. Ebelman 475 



On the Composition of Wolfram, by M. Ebelman 477 



On the Products of the Decomposition of Amber; by Heat, by 



MM. Pelletier and Philippe Walter 477 



Meteorological Observations for October 1843 479 



Table 480 



NUMBER CLV.— SUPPLEMENT TO VOL. XXIII. 



Mr. W. C. Redfield on Dr. Hare's " Additional Objections" 

 relating to Whirlwind Storms 481 



Mr. R. W. Fox's Notice of some Experiments on Subterranean 

 Electricity made in Pennance Mine, near Falmouth ...... 49 1 



Mr. J. D. Smith on the Constitution of the Subsalts of Copper. 

 — No. I. On the Subsulphates 496 



Mr. W. Beetz on the Spontaneous Change of Fats 505 



Mr. J. T. Cooper on Improvements in the Instrument invented 

 by the late Dr. Wollaston, for ascertaining Refracting In- 

 dices 509 



Proceedings of the Geological Society 512 



On the Phosphorescence of the Glow-worm. 543 



Action of Potassium and Sodium on Sulphurous Acid, by 



Messrs. Fordos and Gelie 545 



Action of Zinc on Sulphurous Acid, Sulphite of Zinc, by 



Messrs. Fordos and Gelis 545 



Index 547 



