Confectionary, poisonous, xviii, 157.
Conglomerate mica slate, in Massachusetts, viii, 244.
—, Potomac marble, xxvi, 221f; xxvii, 22.
Conic sections, new instrument for drawing the curves of, xv, 368.f
— —, Prof. Benedict, xxxi, 258.f
— —, problem in, Prof. Davies, vi, 280.f
Conite, a new mineral species, ii, 354.
Connecticut, on coal in, i, 239; iii, 248; v, 44f; xxxiii, 163.
—, geology of N. Haven and Litchfield Cos., B. Silliman, ii, 201.
—, geology of Salisbury, C. A. Lee, viii, 252.