Zanesville Atheneum, cabinet of, xxv, 229; xxxi, 79.
—, coal formations, iii, 5; xxv, 228.
—, remarks on, xxv, 228.
Zantedeschi, F., memoirs of, on the electrotype, noticed, xliii, 390.
Zeolite, recent formation of, xx, 382.
Zeolites, order of superposition in amygdaloidal cavities, xlix, 59.
—, not usually formed at the formation of the containing rock, J. D. Dana, xlv, 116.
Zeolitic minerals, origin of, J. D. Dana, xlix, 52.
— —, of Bergen Hill, N. J., xl, 69; xliv, 54.f
[Zeuglodon,] R. Owen, xxxvii, 231.