CONTENTS. Hi 



Page 



6. Preparation of lodic Acid . 400 



7. Method of Marking Linen ibid. 



8. New Applications of Artificial Ultramarine . 401 



9. Reduction of Titanium (Liebeg) . . , . ibid. 



10. Preparation of Metallic Cromium (Liebeg) . . . 402 



11. Analysis of some Mercurial Salts . ibid. 



12. On the Preparation of the Iodides of Mercury , 403 



13. On Borate of Silver (Rose) . . . . .404 



14. Igniting Platina ...... 405 



1 5. On organic Analysis, and on the Constituents of various organized Bodies ibid 



16. Results obtained from the Seed of the Mango . . . 407 



17. On Lactic Acid ....... 408 



18. On Camphor and Camphoric Acid (M.J. Liebeg) . . 409 



19. Action of Heat on Acetate of Lead (Matteuci) . . .411 



III. NATURAL HISTORY. 



1. Industry of Birds . . . . . . 411 



2. On the Rapid Flight of Insects . . . , 412 



3. Useful Astringent in Cases of Mercurial Salivation (M. Virey) . ibid. 



4. Relief for the Tooth-ache . . . . . .413 



5. Poisoning by the (Sebacic) Acid of Goose-Grease . . 414 



6. Influence of atmospheric Electricity on the Eyes ... ibid. 



7. Native Country of the Potatoe ..... 415 



8. New Forms of Cellular Tissue . . . . .417 



9. Functions of Spiral Vessels ..... ibid. 



1 0. Cryptogamia in Molasses (Virey) . . . . .418 



1 1 . Algerine Sirocco ...... ibid. 



12. Atmospheric Electricity ...... ibid. 



