INDEX TO VOL. XV. 



A 



Abel, Clarke, account of an Ouran<!: Outang by, 161 



Air, blast of, between contiguous surfaces, 362 



Ammonia in argillaceous minerals, 182 



Amphibious animals, alive in rock strata, 247 



Analysis of potteries, 183 do. of Tourmalines, 389 



Antimony, the separation of, from lead and brass, 188 



Argillaceous minerals containing ammonia, 182 



Assafoetida, containing sulphur, 185 Aurora borealis, 199 



Avalanches in the White and Green Mountains, 217 



B 

 Barnes, D. H. obituary of, 401 



Beck, Lewis C. synopsis of American ferns and mosses by, 287 

 Beet, Sugar in, 394 Berthierite, a new mineral, 386 

 Biography of Alex. Volta, 67 



Bird, Rev. J. on the minerals, &c. of Palestine, 374 

 Bladders, evaporation by, 392 Bleaching, remarks upon, 64 

 Botany of Brazil, 390 Bowen, G. T. obituary of, 403 

 Brazil, botany of, 390 Brooke, H. J. Esq. his Polariscope. 369 



C 

 Calcareous Tufa, localities of, 247 

 Carbonate of Iron, localities of, 244 

 Carbonic Acid gas in springs, 237 

 Carburetted Hydrogen gas, do. 236 

 Carpenter, G. W. on mu. soda and salt springs, 1 



chemical warehouse of, 200 



Chemical instruments of Prof. Hare, 260 



action, force of, 392 Chloride of Lime, 391 



Cieaveland's Mineralogy, 3d edition, 401 



Cobalt, spontaneous combustion of, 188 



Combustion, heat of, 392 



Commun, J. du, on volcanos and earthquakes, 12 



Conic Sections, an instrument to draw the curves of, 368 



Cooper, T. Dr., analysis of Cordier's essay by, 109 



Cordier's essay, analysis of, 109 



Convolvulus battatas, sugar in, 285 Cruor, iron in, 16P 



Crystal bed, 186 



D. 

 Davy, John, on the temperature of man, 164 

 Dictionary, Webster's, 399 



Doornik, J. E. on organic remains, 90 Double Stars, 77 

 Duncan, Henry, on the tracks of animals in sandstone, 84 



E 

 Earth, figure of, 172 Earthquakes, on the Mississippi, SGt? 



