—, African, at the Canaries, &c., xiii, 283; xxxvi, 260, 273.
—, —, Azores, iv, 259; xiii, 289.
—, —, supposed, at sea, in lat. 7° N., and long. 99° W., xxxii, 195.
—, American, of Cosiguina, eruption of, xxviii, 332.
—, —, of Peru and Chili, xiii, 308, 309.
—, —, of Mexico, Jorullo, Popocatepetl, &c., xiii, 304.
—, —, of the West Indies, xiii, 302.
—, —, of Greenland, xiii, 279.
—, —, of Upper Missouri, only pseudo-volcanoes, J. N. Nicollet, xlv, 154.
—, —, supposed, of West River Mountain, Vermont, J. A. Allen, iii, 73.