—, —, —, —, observations on the White Mountains, with accounts of trap dikes, granite veins, minerals, &c., O. P. Hubbard, xxxiv, 105.f

—, —, —, Vermont, dike of trap in Montgomery, xxii, 189.

—, —, —, —, supposed volcano of West River Mountain, J. A. Allen, iii, 73.

—, —, —, —, account of section of, E. Hitchcock, i, 105f; vi, 1.f

—, —, —, Massachusetts, account of, C. Dewey, viii, 1f, 240.

—, —, —, —, ibid, E. Hitchcock, i, 105f; vi, 1.f

—, —, —, —, ibid, A. Smith, xxii, 205.f

—, —, —, —, vicinity of Lowell, xxvii, 340.

—, —, —, —, Hampshire Co., with an account of the lead mines, A. Nash, xii, 238.f

—, —, —, —, vicinity of Williams College, C. Dewey, i, 337.f