CONTENTS. 
VIII. On the primitive Crystals of Carbonate of Lime, Bitter- 
Spar, and Iron- Spar. By William Hyde Wollaston, M. D. 
Sec. R. S. p .159 
IX. Observations intended to show that the progressive Motion of 
Snakes is partly performed by means of the Ribs. By Everard 
Home, Esq. F. R. S. p. 163 
X. An Account of some Experiments on the Combinations of dif- 
ferent Metals and Chlorine, &c. By John Davy, Esq. Com- 
municated by Sir Humphry Davy, Knt. LL.D. Sec. R. S. 
p. i 6 g 
XI. Further Experiments and Observations on the Action of Poisons 
on the Animal System. By B. C. Brodie, Esq. F. R. S. 
Communicated to the Society for the Improvement of Animal 
Chemistry, and by them to the Royal Society. p. 205 
APPENDIX. 
Meteorological Journal kept at the Apartments of the Royal 
Society by Order of the President and Council. 
