Dorudon, xlix, 216.
Douglas, D., obituary notice of, xxx, 196.
Douglass, D. B., plants from the headwaters of the Mississippi, iv, 56.
Dové, on the laws of storms, xliv, 315.f
—, — —, strictures on, by R. Hare, xliv, 137.
—, — —, reply to R. Hare's strictures on, by W. C. Redfield, xliv, 384.
Downing, A. J., on the order Cycadeæ and the seed of Cycas revoluta, xxxii, 45.f
Draining, extensive, in Russia, v, 393.
Draper, J. W., allotropism of chlorine, as connected with the theory of substitutions, xlix, 346.f
—, carbonic acid and alkaline carbonates, decomposition of, by the light of the sun, xlvi, 398.