— structure of minerals, notice of, ix, 384.
— surgery, xviii, 179.
— trap, v, 200.
Orang Outang, account of, xv, 161.
Orange County of New York, natural history of, J. Van Rensselaer, xiii, 224.
—, mineral notices of, C. U. Shepard, xxi, 321.f
—, — —, J. Fowler, ix, 242.
Orangeries, v, 190.
Orchis tribe, synonymy of some species of, A. Gray, xxxviii, 306.
— spectabilis, monstrous flower of, J. W. Bailey, xxxv, 117.f