—, —, at great depths, xvii, 295.
—, —, at different depths, xxiii, 10.
Seaweeds of the Atlantic, xx, 181.
Sedgwick, A., Cambrian system of, xxxvii, 220.
—, address before the Geological Society of London, xxi, 186.
—, letter to R. Elton, xlvi, 403.
Sediment from the Mersey, xxxiii, 269.
Seely, L., garnet locality, iii, 241.
Segregation theory of veins, objections to, from facts in Maine, C. T. Jackson, xxxvi, 148.
Seiber's Journey into Abyssinia, announced, iv, 383.