—, — of the melanite of Franklin furnace, N. Jersey, viii, 300.

—, — of pyroxene from the Franklin iron-works, vii, 145.

—, — of sulphuret of molybdenum, iv, 320.

—, — of chromic iron, iv, 321.

—, — of a manganesian garnet, vi, 155.

—, — of the glassy actinolite of Concord, Penn., vi, 331.

—, — of tabular spar, pyroxene and colophonite, from Willsboro', N. Y., v, 113.

—, reclamation of the discovery of fluoric acid in chondrodite, vi, 168, 356.

—, analysis of a meteorite, xvii, 326.

Seybertite, a new mineral, T. G. Clemson, xxiv, 171.