(See also under [Copper mines.])
—, phosphate of, in New Jersey, v, 401.
—, silicate, in Michigan, xli, 185.
—, siliceous hydrate in New Jersey, G. T. Bowen, viii, 118.
[— mines] or ores in Massachusetts, account of, vi, 207; xxii, 61.
— —, at Strafford, Vt., xxi, 383.
— —, in Connecticut, at Cheshire, vi, 206;
–C. U. Shepard, xxxiii, 160.
— —, —, at Bristol, vi, 231.
— —, in Maryland, xxvii, 22.