418 -INDEX, 



Trap optical, 200 



Travellers Society, 175 



Tree mineralized, notice of, 251 



Tribe of Scotacks, 384 



Tubes, elastic, formation of, 153 



Tungsten, calcareous oxide of, analysis of, 118 



Van Rensellaer, Jeremiah, Doctor, on the natural history of the ocean, 12S 

 Vegetable productions of the Highlands, 32 

 Vesuvius, 193 

 Volcanoes, lunar, 176 

 Voluntary breathing, 203 



W, 



Webb, Thomas H. Mr. extract from his letter, 199 — his notice of mineral lo- 

 calities, 402 

 Wet or damp clothes good conductors of lightning. 121 

 William Maclure, Esq. extracts from his letter to the editor, 197 



Y. 



Yellow mineral from Sparta, New-Jersey, notice of, 203 



Z. 



Zeal for antiquity, 191 



Zinc, analysis of a new ore of, 235— green ore of, 399 — siliceous oxide 



of, 400 

 Zircon in North Carolina, 271 and 401 

 Zoology, 174 



uim 



