— — —, (Franklinite) reduction of, v, 242.

—, red oxide of, v, 242.

—, — —, analysis of, A. A. Hayes, xlviii, 260.

—, oxide of, or Ancramite, J. Torrey, v, 235, 399.

—, —, ibid, identical with cadmia and of furnace origin, vi, 180.

—, —, at Ancram, N. Y., J. Torrey, v, 235.

—, sulphuret of, see [Blende.]

Zipaquera in New Grenada, salt works of, xxxii, 89.

Zircon, fusion of, ii, 292.

—, from Vermont, C. U. Shepard, xvii, 358.f