—, in Pennsylvania, xiv, 6, 7.

—, in Rhode Island, xxxv, 180.

Impression in marble near Philadelphia, notice of, J. B. Browne, xix, 361.f

Incas, dominion of, xxxviii, 365.

Inclined planes, on, J. Thomson, xxiii, 107.

Indelible coloring, xxiv, 373.

—, ink, see [Ink.]

India, culture of cotton in, attempted, xl, 40.

India rubber carpets, xxvi, 191.

Indian attacks on Wheeling, xxxi, 3.