_Dana, S. L._, analyses of coprolites, xlviii, 46. ----, on the indigo of commerce, xlii, 320.
Danaite, analysis of, _A. A. Hayes_, xxiv, 386. ----, identical with mispickel, xlvi, 384.^f
Danburite, analysis of, _C. U. Shepard_, xxxv, 137.
_Darlington, W._, pluviometrical observations at Westchester, Penn., vi, 326. ----, note on Cardamine rotundifolia, xviii, 356. ----, importance of the grasses to man, xli, 365.
_Darling, N._, hurricane in New England, Sept., 1815, xlii, 243.
Datholite, crystal from Roaring Brook, Ct., _J. D. Dana_, xlvi, 380.^f ----, in Connecticut, xxii, 389; xlvi, 380.^f ----, in New Jersey, ii, 191, 369; v, 400; xl, 69; xliv, 58. ----, in New York, xliv, 58.
_Daubeny, C._, on the climate of N. America, xxxv, 288. ----, disintegration of the dolomites of the Tyrol, xlii, 321. ----, remarks on iodine and bromine in mineral waters, xxi, 366. ----, geology of N. America, xli, 195. ----, on the thermal springs of N. America, xxxvi, 88. ----, quantity of salt in seawater, xxxvi, 188. ----, on manures as stimulants to vegetation, xlii, 319. ----, effect of arsenic on vegetation, xxxi, 346.
_Daubuisson's_ Elements of Geology announced, ii, 166.
_Davenport's_ rotating electro-magnetic machine, xxxii, appendix after 216. ----, electro-magnetic machine, xxxiii, 193.
_Davies, C._, demonstration of a problem in conic sections, vi, 280.^f
_Davyne_, analysis and figure of, xi, 255.^f
Day, possible variation in the length of, _W. W. Mather_, xlvi, 344.
_Day, G. E._, on the restoration of the deaf and dumb to hearing, xxx, 301.
Dead animals, means of employing, _M. Payen_, xxiv, 326. ----, bodies, preservation of, i, 307. ----, Sea, observations on, ix, 349. ----, ----, level of, xl, 213. ----, ----, barometrical observations made to determine the level of, xlii, 214. ----, ----, account of, _J. D. Sherwood_, xlviii, 1. ----, ----, analysis of waters of, xiii, 395; _B. Silliman, Jr._, xlviii, 10.
Deaf and dumb, observations on the language of signs for, by _S. Akerly_, viii, 348.
_Deane, J._, auroral arch in Vermont, xxxv, 380. ----, fossil footmarks of Turner's falls, Mass., xlvi, 73.^f ----, ---- ---- the ornithichnites of the Connecticut river sandstone, xlv, 178. ----, ---- ---- in the Connecticut valley, xlvii, 381; xlviii, 158^f; xlix, 213.^f ----, ---- ----, reply to _E. Hitchcock_, xlvii, 399. ----, ---- and rain drops, xlix, 213.^f ----, ---- ----, new species of Batrachian, xlix, 79.^f