INDEX TO VOL. XVII. 



Acid in Tomatos, 115 Acidulous Sulphate of Iron, 203 



Acworth Mineral.?, 354 Agenda Gpognostica, 200 



Air, compression of, 38 Albany Institute, 208 Transactions of, 415 



Allen's Mechanics, review of, 338 Almanac, American, &c. 416 



America, early discovery ot, 411 Analysis of Titariiferous L-on, 42 



Analysis of Tennessee ivleteorite, 328 Anthophyllite of Haddara, 144 



Antiquities of Peru, 116 Architecture in the United States, 99, 249 



Arctic Regions, Geology of, 1 Magnetism of, 145 



Aspartic Acid, 173 Aspartates, 174 



Astronomical Observations at Greenwich, 409 



Astronomy, elementary works on, 199 Atmosphere, composition of, 382 



Attraction, liquid, the principles of, 86 



B. 



Bear Lake River, Geology of, 3 



Belemnites, cutaneous appendages of animals, 184 



Biography of Sir H. Davy, 217 Bituminous Coal, origin of, 397 



Blake, Kli W., on the manufacture of Steel, 111 



on blascing of rocks, 134 Blasting of rocks, danger in, 132 



Blowpipe, second edifion of Berzelius on, 411 



simplified, 163 Bones, preservation of, 169 



Boracic Acid reduced by hydrogen, 176 



Botany, introduction to the study of, 414 Brown's active Molecules, 390 



Bryant, Mr. on a stroke of lightning, 193 



C. 



Calculus, mathematical, fundamental principles of, 74 



Caoutchouc, in sheets, 399 Catalogue of Plants, 199 



Callin, Dr. on blasting Rocks, 132 Cement, a new fusible one, 81 



Charring wood, a new mode, 395 Chemical action of Light, 376 



Chemical soluions, influence on vegetation, 388 



Chlorate of Potash, method of preparing, 408 



Chlorine, test for the strength of, 170 Cinchona, remarks upon, 388 



Clemson, T. G. analy is of Iron ore by, 42 



Cloth, preservation of, 184 Columbite of Acworth, 387 



Compression of air, 38 Conductibility conferred by water, 165 



Conwell, Dr. on Tobacco, 369 



Copal varnish, soluble in alcohol, 175 Copper Mine River, Geology of, 7 



Corrosive Subhmate, detection of, 181 



decomposition of, 385 



Couzeranite, a new mineral, 183 Crayons, red, manufacture of, 187 



Crystallization of Salts, 373 



, circumstances influencing it, 383 



Cyclopaedia, Pocket, Guy's, 412 



D. 



Danger in blasting rocks, 132 

 Davy, Sir H. biography of, 217 



, death of, 157 Daubeny, Prof, letter on mineral springs, 407 



Diamond, remarks upon, 372 Diluvial Furrows, 408 



Distillation of wood, 175 Divisibility of matter, 184 



Doolitile, Mr. mode of making charcoal by, 395 



Vol. XVIL— No. 2. 26 



