iv CONTENTS. 



PAas 

 XIX. Geological ObservatioDS made in Scotland, by Profes- 

 sor Studer. Contained in a Letter to Professor 

 Leonhard 166 



XX. On the Formation of Coal. By Mr J. Nicol, F.G.S., 174 



XXI. Scientific Intelligence : — 



GEOLOGY AND MINERALOGY. 



1. On Glaciers. 2. The probable cause of Goitre and 

 Cretinism. 3. Cause of Irised Colours on Minerals. 

 4. Emery in Asia Minor. 5. Gold in Canada. 6. 

 Produce of Gold in the Ural and Siberia in the year 

 1846. 7. Dimorphism of Zinc, . . 180-186 



CHEMISTRY. 



8. Chemist to the Royal Highland and Agricultural 

 Society. 9. Purifying Liquids by Galvanism. 10. 

 On the Radiating Power of Substances. By A.Mas- 

 son. 11. Analysis of the Ashes of Turnip Leaves. 

 12. On the Inorganic Substances in the different 

 parts of Plants, .... 185-186 



ARTS. 



13. On Auriferous Glass. 14. On the Peculiar Pro- 

 perty of Coke. By Mr J. Nasmyth. 15. On the 

 Chemical Character of Steel. By Mr Nasmyth, 187—188 



MISCELLANEOUS. 



16. Sale of Indian Tea at Kumaoon. 17. The Hima- 

 layan Alpine Land. 18. Tarnaway Forest in the 

 Highlands of Scotland. 19. The Himalayan Moun- 

 tains not favourable for Colonization, . 188—193 



XXII. List of Patents granted for Scotland from 22d Sep- 

 tember to 22d December 1848. . . 193 



