Atmosphere, analysis of, _M. Brunner_, xxiii, 280.^f ----, composition of, xvii, 382. ----, on the carbonic acid of, from a memoir by _Saussure_, xvi, 214. ----, quantity of carbonic acid in, xx, 183. ----, carbonic acid in, _W. H. Watson_, xxviii, 71. ----, pressure of, v, 174; xxiv, 174. ----, compression of, in a mine of Bovey coal, xvii, 38. ----, annual movement in, xlii, 158. ----, extent of, _W. C. Redfield_, xxv, 123. ----, height of, at the equator, _J. P. Espy_, xxxix, 120. ----, general view of, _W. C. Redfield_, xxxiii, 50; average velocity of wind near the surface of the ocean, 52; temperature of elevation, 52. ----, effect of the rarefaction of, on its desiccation and refrigeration, xl, 44; formation of clouds a consequence of, 44. ----, luminous appearance in, iv, 341. ----, Prof. _Lloyd_ on the clearness of, at times, xxxiv, 7. ----, deductions with regard to the moon's influence on, xv, 174. ----, mercurial, iii, 386. ----, temperature of, see _Meteorology_ and _Temperature_. ----, during the coal period, _H. D. Rogers_, xlvii, 105. ----, of the planets, remarks on, xxv, 183. Atmospheric air, on the dilatation of, _V. Regnault_, xliv, 63. ---- pressure, see _Barometer_. ---- tides, ix, 195. ---- dust, by _C. S. Rafinesque_, i, 397. ---- ----, reply to _C. S. Rafinesque_, ii, 134. ---- currents, see _winds_. Atomic weights of bodies, _Dr. Thomson_ engaged in determining, iii, 396. ---- ----, _Turner's_ opinions respecting, xxviii, 70. ---- ----, observations on, Prout's hypothesis of, _J. J. Berzelius_, xlviii, 369. ---- ----, not multiples of that of hydrogen, xlvii, 187. ---- ---- of lead, sulphur, nitrogen and carbon, _Clark_, xxxviii, 119. ---- ---- of hydrogen, chlorine, potassium, calcium, glucinum, silver, uranium, cerium and lanthanum, xlvii, 188. ---- ---- of elements, _Marchand_ and _Erdmann_, --oxygen, hydrogen, carbon, nitrogen, calcium, chlorine, silver, lead, xliv, 215; of copper, mercury and sulphur, xlviii, 402. ---- theory, account of, by _J. Finch_, xiv, 24. Atom, idea of, _J. D. Whelpley_, xlviii, 352. ----, _R. Hare_, on the views of Faraday, xlviii, 247. ----, nature of the crystalline, _J. D. Dana_, xxx, 275.^f Attraction in liquids, inquiries into the principles of, xvii, 86.^f ----, chemical, modified by quantity of matter, _E. Mitchell_, xvi, 234. ----, magnetic, see _Magnetic_. _Atwater, C._, prairies and barrens of the west, i, 116. ----, geology, mineralogy, botany, &c. of Belmont Co., Ohio, i, 226. ----, prevailing winds of Ohio and the west, i, 276. ----, on the geology, climate and diseases, &c. of Ohio, xi, 224. _Audubon_, work on the birds of N. America, xvi, 353. ----, ---- ----, notice of, xlii, 130.