— of the coal strata, A. Brongniart, iv, 266.f
—, — —, H. Witham, xviii, 110.f
—, — —, of England, iii, 246.
—, — —, of Ohio, at Zanesville, E. Granger, iii, 5.f
—, — —, of Ohio valley, S. P. Hildreth, xxix, 1, 151.f
Abies Benstedi, xlv, 402.
Carpolithus Smithii, xlv, 402.
Culmites, vii, 180.
Ficoidites scabrosus, xxxi, 31.f
Filicites, generic characters of, vii, 181.