—, model of the southern coalfield of Pennsylvania, xli, 80.f

Taylor, Steuben, localities of minerals, vi, 245.

—, account of a rocking stone, vii, 201.

—, localities of minerals, vii, 253; viii, 225.

Taylor, Stephen, on salt in Virginia, xli, 214.

Taylor, S., ancient mounds and other remains in Iowa and Wisconsin, xliv, 21.f

Taylor, W. C., on change of population in New Zealand, xxxv, 315.

Taylor's theorem, C. Bonnycastle on, xl, 42.

— —, new investigation of, T. Strong, xlv, 272.

Tchihatcheff, P. de, memoir on the geological constitution of the Altai, noticed, xlix, 378.