----, succinic, xlvii, 196. ----, sulphacetic, _M. Melsens_, xlviii, 193. ----, sulphuric, see _Sulphuric_. ----, sulphurous, see _Sulphurous_. ----, tartaric, manufacture at Glasgow, xli, 50. ----, of tomatos, xvii, 115. ----, uric, _Liebig_, xxxiv, 40. Acids and salts, _R. Hare's_ views on, xxvii, 63, 67. ----, on the formation of, in vegetables, _M. Vauquelin_, xviii, 150. Acoustic rainbow, xxi, 381. Actinolite, in Canada, viii, 68. ----, glassy, from Concord, Penn., analysis of, _H. Seybert_, vi, 331. ----, in Connecticut, vi, 226; vii, 253; viii, 259. ----, in Maryland, xiv, 12. ----, in Massachusetts, i, 114; ii, 236; viii, 48, 235; ix, 54; x, 214. ----, in New Jersey, v, 246. ----, in New York, ix, 243, 250. ----, in North Carolina, v, 261. ----, in Pennsylvania, viii, 239; ix, 246; xiv, 9, 12, 13. ----, in Rhode Island, iv, 285; viii, 227; x, 10, 226. ----, in Vermont, iii, 76; iv, 54; v, 40, 271; xvii, 354. _Adams, C. B._, mollusca of Middlebury, Vt., xl, 266. ----, new species of Thracia, xliii, 145.^f ----, note on the Pasithea sordida of Lea, xlii, 392. _Adams, E._, divisibility of matter, xxviii, 163. _Adams, J._, movement of rocks by ice, ix, 136. ----, theory of the construction of the thermometer, viii, 121. _Adams, S._, observations and experiments on light, xlii, 123. _Adams, W. A._, human footprints in rocks, and other artificial impressions, xliv, 200. Adularia, in Connecticut, ii, 239, 240; vi, 221. ----, in Massachusetts, v, 41. ----, in New York, vii, 57. Adulterations of various substances, on the detection of, _E. D. Faust_, xix, 70. ---- of alcohol, xix, 71. ---- of ammonia, xix, 72. ---- of arrow root, xix, 72. ---- of calomel, xix, 72. ---- of castor oil, xix, 77. ---- of chromate of lead, xix, 73. ---- of copaiva, xix, 73. ---- of iodide of potassium, xix, 74. ---- of lemon juice, xix, 75. ---- of morphine, xix, 75. ---- of oil of sweet almonds, xix, 76. ---- of oil of olives, xix, 76. ---- of peroxide of manganese, xix, 78. ---- of peruvian bark, xix, 81. ---- of phosphate of soda, xix, 82. ---- of prussic acid, xix, 70. ---- of soda, xix, 83. ---- of sulphate of magnesia, xix, 84. ---- of sulphate of quinine, xix, 84. ---- of tartrate of potash, xix, 85. ---- of tartar emetic, xix, 86. ---- of vinegar, xix, 86. Aerial navigation, principles of, _H. Strait_, xxv, 15.^f Aerolite, see _Meteorite_. Aerostation, observations made during an ascent, _E. Robertson_, xii, 166, 325. Africa, alum and other minerals in a cavern in Southern, xxviii, 290. ----, white race of Atlas in, xxxii, 400. ----, Journey in Northern, by _Ehrenberg_ and _Hemprich_, vii, 195. ----, Northern, geological notices of, iv, 32. ----, geology of desert between Suez and Cairo, xxxiii, 288. ----, geology of Cape of Good Hope, _G. Champion_, xxix, 230.