peat on the Passaic, 196;
pea-ore, ibid, 196;
copper, 198;
pipe clay, 198;
Snake-hill, 199.
—, alluvial district, with remarks on the marl, and its application to agriculture, J. Pierce, vi, 237.
—, geology, Hoboken serpentine rocks of, and their minerals, (Nemalite, Marmolite, &c.) T. Nuttall, iv, 16.
—, on the cretaceous formation of, S. G. Morton, xvii, 274, 290; xviii, 243, 249f; xxii, 90; xxiii, 288f; xxiv, 128f; xlviii, 265f, 267.
—, ibid, C. Lyell, xlvii, 213.
—, fossil fish, W. C. Redfield, xxxvi, 186; xli, 24, 164; xliii, 172; xliv, 134f; xlv, 314.