CONTENTS. 
No. III. 
ORIGINAL COMMUNICATIONS. 
On Asarum Canadense. By Richard Rushton, - 181 
Observations on Amygdaline, demonstrative of its existence in se- 
veral species of the natural division of plants Amygdaleae. 
By Willam Procter, jr. 188 
On Chrysanthemum Parthenium. By William Edwin Knight, - 200 
Observations of Liebig, Dumas, and Peligot, Kane, &c, on Pyro- 
acetic Spirit, and the compounds derived therefrom, - 202 
SELECTED ARTICLES. 
Observations upon the form, or apparent state, which the combina- 
tions of certain bodies with camphor assume, and upon the 
properties which these bodies possess of masking, dimin- 
ishing, or exalting its odor. By M. Planche, - - 212 
Comparative examination of Antimoniuretted and Arseniuretted 
Hydrogen, and upon the new modes of reducing the Sul- 
phuret of Arsenic. By J. F. Simon, - 217 
Observations upon a force hitherto unknown, and upon the action 
which it exercises in the formation of chemical combina- 
tions in the living system. By M. Berzelius, - - 220 
Report made to the Royal Academy of Medicine, by M. Planche, 
in the name of a committee, upon a new Jalap proposed by 
M. Le Danois as a substitute for officinal Jalap, - - 223 
New method of covering pills with a coating of Gelatine. By M. 
Garot, - 229 
On the boiling of mixtures of two liquids, and their explosions. 
By M. Magnus, - - - - • - - 231 
A Lamp formed with filaments of Asbestus; difference in the li- 
quids obtained by this apparatus with Alcohol, Sulphuric 
Ether, &c. By M. R. Bottger, - - - - 239 
Report made to the Royal Academy of Medicine upon the new 
Ferruginous Pills of M. Vallet. Soubeiran, Reporter, - 244 
