11 CONTENTS. 



Art, II» Some Experiments and Observations on the Combina- 

 tions of Carbonic Acid and Ammonia. By John 

 Davy, M. D. F. R. S. Communicated by the Au- 

 thor, ----- 245 



1. On the direct Combinations of Carbonic Acid and 



Water, - . - . 246 



2. On the Sesquicarbonate of Ammonia, - 248 



3. On the Bicarbonate of Ammonia, - 254 



4. On the Effect of Heat on the sohd Sesquicarbonate 



and Carbonate of Ammonia, - - 257 



III. Statistical Views of the Mortality in various Coun- 



tries in Europe, - - - - 259 



IV. On Electricity, and on the Natural Sources of Elec- 



tricity and Magnetism. By Professor M. A. De 



LA Rive, . _ _ - 266 



I. Atmospheric and Animal Electricity, - ib. 



II. On Terrestrial Magnetism, as connected with the 



Origin and Formation of the Earth, - 268 



V. Geology of the Valley'of Oodipoor. By James Har- 

 DiE, E^q. Bengal Medical Establishment, Member 

 of the Asiatic Society, &c. Communicated by the 

 Author. (Concluded from Vol. XV. p. 59.) 278 



VI. On the Animals depicted on Antique Monuments, 

 By M. Marcel de Serres. (Concluded from 

 p. 175.), - . _ - 285 



VII. Observations during a Voyage from England to Fort 

 Vancouver, on the North-west Coast of America. 

 By Dr Meredith Gairdner. In a Letter to 

 Professor Jameson, > - - 290 



VIII. Proofs that the Human Bones and Works of Art 

 found in Caves in the South of France are more re- 

 cent than the Antediluvian Bones in these Caves, 302 



IX. Additional Observations on the Structure of Recent 

 and Fossil Coniferae. By William Nicol, Esq. 

 Lecturer on Natural Philosophy. With a Plate. 

 Communicated by the Author, - - 310 



X. Characters of Three Genera of Indian Plants. By 



G. A. Walker Arnott, Esq. A. M. F. L. S. &c. 314 



