—, polar, xiv, 378.
Food for sheep, different kinds of, xxiii, 393.
Foot, L., on Indian summers, xxx, 8.
—, notices in geology and mineralogy, iv, 35.
[Footprints,] American, E. Hitchcock on, in Connecticut valley, xxix, 307f; xxxi, 174; xli, 165; xlvii, 113, 292f, 390; xlviii, 61.
—, —, —, general table of, xxxii, 174.
—, —, —, general review of, with descriptions of species, xlvii, 113, 304.f
—, —, —, miscellaneous remarks upon, xlviii, 61.
—, —, —, reply to J. Deane, xlvii, 390.
—, —, J. Deane on, in the Connecticut valley, xlv, 178; xlvi, 73f; xlvii, 381; xlviii, 158f; xlix, 79f, 213.f