Calc spar, formation of, v, 405.
— —, and arragonite, Becquerel, on the different formation of, xxiii, 387.
— —, in Connecticut, vi, 246.
— —, Massachusetts, i, 115; vii, 255; viii, 32.
— —, New Jersey, ii, 194; xl, 69; xliv, 60.
— —, New York, iv, 45; ix, 251; xxv, 346; xl, 76.
— —, Nova Scotia, xxx, 347.f
— —, Pennsylvania, x, 222.
— —, western states, iii, 67; vii, 47.
— —, of Rossie, N. Y., with figures of crystals, xlvi, 33.f