402 INDEX. 



Boue, Dr. his notices of European Geology, 188 

 Boston Journal of Philosophy and the Arts, 379 

 Brace, J. P. Mr. his notice of minerals, 250 

 Brewster, Dr. his memoirs, notice of, 400 

 Brick making, 396 



C. 



Cadmia, observations on, 180 



Calcareous Spar, 211 



Chalcedony ) ^jg 



Cacholong 5 



Calligraphy, 391 



Canal, survey on the, 373 



Canton of Geneva, 392 



Caoutchouc, mineral, 370 



Carbonaceous bodies, additional notice of, 379 



Ceylon, mineralogy of, 192 



Chabasie, 224 



Chain bridge over the Menai, 384 



Chronometer, cosmogonical, 56 



Cleaveland, Prof, his notice of snow-balls, 162 



Coal formation, 61 



Cobalt, arsenical, mine of, 209, 235 



Colophonite, 223 



Columbium, 236 



Comstock, Dr. notice of his Grammar of Chemistry, 369 



Conic Sections, demonstration of a problem in, 280 



Conjectures on the probable changes in the Geology of North- 

 America, 98 



Connecticut River, mineralogy and geology of the regions on, 1. 

 201 



Conservatory of Arts and Trades, 388 



Cooking apparatus, 399 



Copenhagen, 390 



Copper, mines and veins of, 205 



, pyritous, green carbonate and red oxide of, 206 



Corundum, 219 



Crystallization of Sulphuric Acid, 186 



Cutbush, James, Dr. on the formation of Cyanogen, 149 



, on the properties and formation of the Greek Fire. 



302 



Cyanite, 219 



Daggett, Herman, Rev. his letter on the cutting of steel, by soft 

 iron. 336 



