40S INDEX. 



Thimbles, manufacture of, 376 



Thomson, Thomas, Prof, extract of a letter from, 3&G 



Titanium, oxid of, (note) 3 



in South Carolina, 228 

 Topography of Lake Huron, &c. 264 

 Trap region, of New-England, 221 

 Transition formation of Lake Huron, 257 



Translations from the Arabic, 384 Trees in alluvion, 63 



Trilobite of Albany, 226 Troost G. Dr. on Amber, 8 



Troy, geological notice of, 72 

 Town, Ithiel. Mr. on Bridge Building 158 



U. 

 Unanue, Hippolite, letter from to Prof. S. L. Mitchill, 397 



V. 

 Vanden Heuvel, J. C. Esq. on honey bees, 79 

 Van Diemen's land, 377 

 Vegetation how supported, 372 

 Vegetable impressions of Zanesville, Ohio. 6 



remains in coal, in Scotland &ic. 389 

 Virginia fluor spar, 243 

 Volcano, whether West River Mountain was ever the seat of 



one, 73 



W. 

 Wacbitta, cove of, 20 — 28, hot springs of, 29 

 Ware, N. A. Esq. his opinion on drift wood, 19 (note) 

 Warm springs of Buncombe county, N. Car. 117 

 Water, formation of, by compound blowpipe 91 



its compressibility. 347 — oxigenized, 369 



of the sea contains potash, 371 

 Waters, mineral, artificial formation of, 95 



chalybeate, 236 Wavellite, American, 23;> 



Webster, J. W. Dr. on prussic acid, 179 — epidote 364 



Sinter of St. Michael, 391 

 Westfield, Conn, its analogies with Mansfield in Hesse, 220 



Serpentine, 238 

 West river mountain, notice of, 73 White, Canvass, Mr. 320 

 Wilson, J. W. Mr. on bursting of lakes through mountains, 262 

 Woad recommended for spring pasture, 365 

 Wood, modes of staining 166 



Woodbridge. W. C. Mr. extract of a letter from, 396 

 Woolsey, W. W. Esq. 230 

 Wright, Benjamin, Mr. on hydraulic lime, 230 



Y. 

 Yellow wood, 44 



Z. 

 Zanesville, coal formations, 5 Zinc, sulphuret o(, 63 



Zircon of South Carolina, 229 (note) 



