— —, headwaters, botany of, D. B. Douglass and J. Torrey, iv, 56.
— waters, medical effects of, viii, 396.
Missouri, lead region of, H. R. Schoolcraft, iii, 248.
—, — —, ores, Troost and Lesueur, xii, 379.
—, — —, J. N. Nicollet, xlv, 340.
—, — —, J. T. Hodge, xliii, 35.f
—, — mine of la Motte, ore not argentiferous, xliii, 64.
—, native carbonate of lead in, xii, 379.
—, cobalt ores, xii, 378.
—, cretaceous formation of, J. N. Nicollet, xli, 180; xlv, 153.