—, —, Lebanon, viii, 21 xxxvi, 7.
—, on the formation of nitrogen in warm, C. Daubeny, xx, 383.
—, petrifying, in New York, xxxvi, 11.
—, pretroleum, in Kentucky, xxxix, 195.
—, — in the salt springs of the Ohio valley, xxiv, 63.
—, salt, origin of, A. Eaton, vi, 242.
—, —, in Europe, Bavaria, emitting carbonic acid gas, J. D. Forbes, xxxv, 293.
—, —, —, of Montiers, in the Alps, and a peculiar mode of evaporation, R. Bakewell, xx, 219.f
—, —, —, changes in, in Prussia, x, 193.
—, —, in America, of Bear Lake and Northern America, xvii, 3, 5.