—, frost, disruption of the ground by, i, 286.f
—, fossil fish, in the Connecticut valley, iii, 222, 365; vi, 76.f
—, fossil vertebral remains in the Connecticut valley sandstone, xxix, 330.
—, — footprints, description of, (ornithichnology) xxix, 307.f
—, — — in Connecticut, xxxi, 174.
—, — — of Connecticut valley, Report of Committee on, xli, 165.
—, — —, general review of, xxxii, 174; xlvii, 113, 292.f
—, — —, miscellaneous notices of, xlviii, 61.
—, — —, reply to J. Deane on the discovery of, xlvii, 390.
—, geology and mineralogy of Massachusetts, New Hampshire and Vermont, i, 105.f