Cambrian system, Sedgwick, xxxvii, 220.
Cambridge, England, improvements in, xlvi, 403.
Cambridge course of mathematics, review of, v, 304.
Cameos, from shell, xxxii, 257.
Campbell, A. W., an electro-magnetic engine, xxxv, 343.f
Camphor, crystallization of, M. John, xiii, 175.
—, odor of, destroyed temporarily by electric action, xix, 380.
Canada, maps of, in course of preparation, xvi, 380.
Canada, vegetable coloring materials in, xviii, 186.
—, cave containing bones at Lanark, ix, 354.