—, —, at the bottom of rivers, H. W. Sheffey, xxxvi, 186.
—, —, ibid, T. Stratton, xl, 407.
—, —, sparks given out during, xxvi, 178.
— in a well, xxxvi, 184.
— of the sea, characters of, and remarks on, v, 131.
—, Greenland, i, 101.
— of the Alps, J. D. Forbes, xlvi, 173;
–veined structure and motion consequence of its viscous condition, xlvi, 174, 175.
Icebergs, remarks on, v, 131.
—, formation of, C. Wilkes, xlvii, 114.