Cleavelandite, (Kieselspath,) a variety of albite, vii, 370, 390.
Clemson, T. G., analysis of a titanic iron ore from near Baltimore, xvii, 42.
—, analysis of American spathic iron and bronzite, xxiv, 170.
—, notice of piperin, xviii, 352.
—, method of making sulphuric acid, xx, 347.f
—, physical geography, industry, &c. of the Hartz, xix, 105.f
Climate, connection with atmospheric and oceanic currents, W. C. Redfield, xxv, 133.
—, liable to change permanently or not, S. Forry, xlvii, 226.
—, effect of clearing land on, S. Forry, xlvii, 237.
—, effect of, on distribution of plants in the United States, S. Forry, xlvi, 221.