Space, planetary, Fourier on the temperature of, xxxii, 1.

—, —, S. D. Poisson ibid, xxxiv, 57.

—, —, idea of ether in, when introduced, xxxiii, 1.

—, —, ibid, R. W. Haskins on, xxxiii, 1.

—, resistance in, to the motion of the heavenly bodies, xvii, 389.

Spadiate, a new mineral, xlix, 394.

Spafford, H. G., on groves of evergreens, as screens for the garden, orchard, &c., xxii, 158.

—, on spontaneous combustion, xxii, 161.

Spain, difficulty of mineralogical excursions in, viii, 187.

—, yield of Rio Tinto mine of copper, xxviii, 144.