iv CONTENTS. 
GEOGRAPHY, 
5, Height of Mount iEtna, - - 40$ 
HYDROGRAPHY. 
6, Observations with regard to the presumed Diminution 
of the Level of the Baltic Sea, by N. Bruncrona ; with 
remarks on the same subject by C. P. Hollstrom, 408-410 
CHEMISTRY. 
7, On Metallic Titanium. 8. Selenium in Volcanic Sul- 
phur and iron-pyrites. 9* Bitumen in Native Sul- 
phur. - - 410, 411 
MINERALOGY AND GEOGNOSY. 
10. Jeffersonite not a new species. 11. Maclureite not a 
new species. 12. Serpentine a distinct mineral spe- 
cies. 13. Discovery of Jenite in America. 14. Lig- 
nite, or Brown Coal, in Coarse Marine Limestone 
15. Necker on the Dikes of Somma, - 411-413 
BOTANY. 
id. Botanical Excursions to the Scottish Mountains in 
June and July 1824, - - 413-415 
ZOOLOGY. 
17. Preserving of Birds, &c. 18. Further particulars in 
regard to the Fossil Whale of Dunmore. 19. Fos- 
sil Elephant’s Tooth found in Cheshire. 20. San- 
giovanni on the Regeneration of Earth-worms. 21. 
The Trumpeter Bird, a true Ventriloquist. 22. Mal- 
lah of Miana, a venomous insect of Persia. 415-419 
COMPARATIVE ANATOMY. 
23. On the Nervous System of A vertebral Animals. 24. On 
the Semidecussation of the Optic Nerves. 25. Dis- 
covery of a particular Organic System in the Cepha- 
lopoda. - 419-423 
ARTS. 
26. Cotton Yarn. 27- Medical remains found at Pompeii, 423 
POLITICAL ECONOMY. 
28. Benefit Societies. 29- Steam-Engine. 30. Cotton 
Manufactures. - - 424, 425 
MISCELLANEOUS. 
30. Value of Literary Property in Scotland forty years 
ago. 31. Evening Party at M. Arago’s, 426, 427 
Art. XXXI. List of Patents granted in Scotland from 19th 
May to 13th August 1824, - 427 
