— —, see farther under [Temperature] and [Meteorological.]

Thermopsis caroliniana, xliv, 80.

— fraxinifolia, xliv, 81.

Thermoscope, new, xxii, 370.

Thermoscopic galvanometer, xxii, 370; xxxiii, 365.

Thetford, Vermont, copperas factory near, iii, 326.

Thilorier, liquid carbonic acid, xxxi, 402.

—, solidification of carbonic acid, xxxi, 163, 404.

Thimbles, manufactory of, in France, iii, 375.

Thomaite, a new mineral, xlix, 393.