— —, account of, xvii, 326; xviii, 200.
—, meteoric iron, G. Troost, xxxviii, 250; xlix, 336.f
—, — —, analysis, C. U. Shepard, xliii, 354.
— gold region, xxiii, 1.f
—, Geological Report of, xxx, 391; xxxiv, 187.
—, mounds and caves in eastern, J. H. Kain, i, 428.
Tenorite, xlviii, 219.
Tephroite, xviii, 391.
Teratology, a French treatise on the elements of, noticed, xli, 374.
Terraces of the Connecticut valley, xxii, 214; xlvii, 98.