—, Davis's Manual of, xliii, 381.
— of the earth, especially of the arctic regions, E. Sabine, xvii, 145.f
— —, causes of, B. F. Joslin, xix, 398.
— —, views of J. Hamilton, xxxvii, 100.
— —, views of S. L. Metcalf, xxvii, 153.
— —, views of Rowall, xli, 41.
— —, effect of, on the precipitation of silver, xvi, 262.
— chemical effects of, viii, 374.
—, supposed influence of, in combinations and crystallizations, by O. L. Erdmann, xviii, 395.