Tombacite, xlii, 387.
Tomlinson, D., on the tides, xxxiv, 81.
—, on preserving animal fat for soap making, xxxvii, 194.
Tongueless dog, retaining the power to bark, xxxvi, 194.
Tonsil, concretion from, vi, 165.
Topaz, powder of, used as emery, xxxiv, 381.
—, distribution of coloring matter in crystals, and optical properties of, D. Brewster, vii, 364.
— in Ireland, xxix, 374.
— of Huntington, Ct., x, 352; xi, 192; xii, 158f; xiv, 229.
— in Connecticut, at Middletown, C. U. Shepard, xxxiv, 324.