396 INDEX. 
Boston Journal of Philosophy and the — 359 
Brard, Mineralogie appliquée aux arts, 
Brewster, Dr., new fluid in the éavities ig certain minerals, 186 
—_———_——-,, description of a Monochromatic lam 
———_———-, on the connexion. between the primitive forms of 
crystals, ag a number of their axes of double refraction, 
363 
—_—___——, on the optical properties of the Brazilian To- 
paz, 364 
— ot = io native magnesia of Shetland, 365— 
ri 
Brine 8 ab of ew York, — examination of, 345 
sults of the analysis of, 344 
Brougniart, Ad., sur Tes Fegtiank foal: analysis of, 178 
Broset elementary Instruction in, 382 
Bulkley, R., furnace for ventilating sewers, 177 
Cc. 
Calcaire — 38 
Calcarious spar, 47 
90 
Canals, navigable, second memoir on, 288 
Ca sbonic acid, condensation of, 354 
Caricography, 264 
— irlsbad waters, te 
allic, improvement in, 190 
——- "of America, Essay on, 149 
Chalcedony, 4 
— G:, eaaea examination of the Brine springs in N. 
, 345—Description of an improved Rain Gage, 326— 
Remarks on the Analysis of the Brine Springs in New-York. 
anes Fir ra 
P for making sheet lead, 391 
Chiton, Description of five speéies of, 69 
Chlorine, condensation of, 357 
eas s, Society of, i in Paris, 189 
Circles of memorial, 155 
Cees B.., a9 yihe navigation of rapids, 175 
Chereli, Pr Prof — notice of the late meteor in Maine, ive 
te, 
ct 
