—, geological observations upon Alabama, Georgia and Florida, xxv, 162.
—, thermal waters of Suannee, Georgia, producing a silicification of fossils, xxv, 165.
—, on Ball's cave, xxvii, 368.
—, analysis of the waters of the Gray Sulphur spring, Virginia, xxx, 100.
—, microlite, a new mineral, xxvii, 361.
—, —, chemical examination of, xxxii, 338.
—, — not identical with pyrochlore, xliii, 116.
—, on the strontianite of Schoharie, N. Y., xxvii, 363.f
—, description of Edwardsite, xxxii, 162.
—, Eremite, a new mineral, xxxii, 341.f