—, on the dilatation of, V. Regnault, xliv, 63.

—, expansion of, xix, 397.

—, mode of obtaining the specific gravity of, R. Hare, xvi, 293, 295.f

—, apparatus for saturating a liquid with, xvi, 387.

—, caoutchouc rendered impermeable to, xlvii, 194.

—, native, different localities, near the Erie canal, N. York, A. Eaton, xv, 233.

—, —, Fredonia, New York, used for lighting a village, xvii, 398.

—, —, at Gasport, N. York, xv, 236; xxxi, 246.

—, —, at Kenawha, J. A. Lewis, xlix, 209.

—, —, at a Nova Scotia coal mine, xxx, 184.