CONTENTS. Ill 



PAGE 



II. Chemical Science. 



I. On the dry Voltaic Piles of M. Zamboni. 2. New Galvano- 

 meter. 3. On the Length of the Electric Flash producing Light- 

 ning. 4. On the Existence of Iodine in a Mineral Substance, 

 5. Selenium in the Sulphur of the Lipari Islands. 6. Natural 

 Sources of Carbonic Acid Gas. 7. Process for the Detection 

 of Phosphate of Lime. 8. Metallic Titanium in Iron Furnaces. 

 9. M. Rose on the Separation of Titanic Acid from Oxide 

 of Iron. 10. M. Wohler on Tungsten, and its Combinations. 

 11. Composition of Ancient Glass. 12. Action of Lime upon Al- 

 cohol. 13. Melaina, or the Black Principle of Sepia. 14. Ana- 

 lysis of the Solanum Pseudo-quina 159 



III. Natural History. 



1. Meteoric Appearance on Ben-Lomond; Ascent of Vapour. 

 2. Description of an Earthquake. 3. Extraordinary Rise of the 

 Rio de la Plata. 4. Fall of a Meteoric Stone at Nantgemory, Mary- 

 land. 5. Composition of Aerolites. 6. Flexible Marble of Berk- 

 shire County, U. S. 7. Extraordinary Minerals discovered at 

 Warwick, Orange County, N. Y. 8. Globules of Water in Ame- 

 thyst. 9. Recent Formation of Brown Hematitic Iron Ore. 10. On * 

 the Habits of Beavers. 11. Tenacity of Life in Larvae. 12. Argo- 

 nautaArgo. 13. Recent Vegetation of Ancient Beans. 14. On the I 

 Origin of Ergot. 15. Action of Poisons upon the Vegetable King- 

 dom. 16. On the Contents of the Digestive Canal in the Foetus of 

 Vertebral Animals. 17. Remedy for Effects produced by Inhaled 

 Chlorine. IS. Employment of Caustic to destroy the Variolous 

 Eruption. 19. Preservation of Anatomicnl Preparations. 20. Phy- 

 siological Prize Question. 21. Salt on the Shore of the Severn 1S2 



XVI. Meteorological Journal for June, July, and August . 202 



