Glauberite, xlvii, 338.
Glaucolite, xv, 387.
Glucinium, atomic weight of, xlvii, 189.
Glyptodon, xxxvii, 232.
Gmelinite or hydrolite, A. Connell, xxxv, 195.
Gnaphalium decurrens, i, 310, 380.f
Gnathodon, T. A. Conrad, xxxviii, 92.f
Gneiss of the Connecticut valley, vi, 18.f
— quarries of Connecticut, C. U. Shepard, xxxiii, 170.
— in western Massachusetts, viii, 5.f