Sicily, earthquakes of 1823, ix, 216.
—, geological structure of, F. Ferrara, viii, 201.
—, marbles of, viii, 203.
—, minerals of, viii, 203.
—, geology of, C. Daubeny, x, 230.f
—, volcanic character of, xiii, 272.
—, fountain of Cyana in, xxvii, 82.
Sida abutilon, affording a material for cordage, xxi, 37.
Sidero-graphite, J. Torrey, ii, 176, 370.
Sideroscope, xv, 177.