Sclerotic bones of the eyes of birds and reptiles, xxxiii, 289.
Scoresby, W., magnetical investigations, xlviii, 33.
—, improvements by, in magnetic apparatus, xxxiv, 398.
Scotacks, tribe of, in Hungary, v, 384.
Scotland, population of, xxiv, 211.
Scott spring, Virginia, analysis of, xliv, 409.
[Scratches,] diluvial, caused by ice, according to L. Agassiz's theory, xlii, 350.
—, —, theory of, E. Hitchcock, xli, 255.
—, —, in the United States, xli, 174.