Hubbard, O. P., chemical examination of the bituminous coal of Chesterfield Co., Va., xlii, 369.
—, geological and mineralogical notices, xxxii, 230.f
—, calcareous rocks at Boonville, N. Y., xxxii, 230.
—, — —, ibid, rhomboidal structure in, xxxii, 232.f
—, boulders at Boonville, xxxii, 233.
—, locality of crystallized calc spar, Boonville, N. Y., xxxii, 234.
—, — of green coccolite and tabular spar, at Boonville, N. Y., xiii, 198; xxxii, 234.
—, on the removal of carbonic acid from wells, xxxviii, 206; xlii, 165.
—, spontaneous combustion in wood ashes, xlii, 165.
—, geological observations on an excursion to the White Mts., numerous trap dykes, minerals, granite veins, &c., xxxiv, 105.f