---- Danaite, _A. A. Hayes_, xxiv, 386. ---- Danburite, _C. U. Shepard_, xxxv, 137. ---- Davyne, xi, 255. ---- Deweylite, _C. U. Shepard_, xviii, 81. ---- ----, _T. Thomson_, xxxi, 173. ---- dioptase, _Damour_, xlvii, 216. ---- dolomite, iv, 17. ---- dreelite, xxx, 380. ---- Emmonite, _T. Thomson_, xxxi, 171. ---- eupyrchroite, _L. C. Beck_, xl, 77. ---- feldspar from Bytown, L. C., _T. Thomson_, xxxi, 173. ---- ----, containing titanium, xii, 187. ---- garnet, manganesian of Haddam, Ct., _H. Seybert_, vi, 155. ---- gaseous mixtures, _R. Hare_, xv, 279, 283. ---- gastric juice, by _Braconnot_, xxx, 378. ---- gigantolite, xlii, 387. ---- glaucolite, xv, 387. ---- Gmelinite, _A. Connell_, xxxv, 195. ---- gold of Georgia, _W. W. Mather_, xxvii, 255. ---- ----, containing rhodium, from Mexico, xi, 298. ---- grains, cereal, _C. T. Jackson_, and _A. A. Hayes_, xlv, 339. ---- guano, _J. E. Teschemacher_, xlviii, 181. ---- ----, _Girardin_ and _Bidard_, xlviii, 181. ---- ----, _W. Francis_, xlviii, 182. ---- ----, _J. D. Smith_, xlviii, 183. ---- ----, xlix, 200, 391. ---- Haydenite, _B. Silliman, Jr._, xlvi, 380. ---- heavy Spar, _G. T. Bowen_, iv, 325. ---- heterosite, xix, 371. ---- Holmesite, _T. Thomson_, xxxi, 172. ---- hops, vi, 393. ---- Hudsonite, _L. C. Beck_, xlvi, 32. ---- Humboldtilite, xi, 251. ---- huraulite, xix, 371. ---- hydrate of magnesia, Hoboken, vii, 370. ---- hydraulic limestones, _L. C. Beck_; xlvi, 29. ---- hydroboracite, xxviii, 394. ---- hydromagnesite, of Hoboken, _M. Wachtmeister_, xviii, 167. ---- hydrous anthophyllite of N. York, _T. Thomson_, xix, 359. ---- hypersthene of N. York, _L. C. Beck_, xlvi, 35. ---- idocrase, _T. Richardson_, xxxviii, 120. ---- indigo, xviii, 241. ---- iolite, xlvi, 383. ---- iron, supposed native of Bedford Co. Pa., xiv, 183. ---- iron ore of Pennsylvania, _W. R. Johnson_, xxxviii, 383; xxxix, 142. ---- iron ore, bog, in New Jersey, _H. Seybert_, viii, 298. ---- iron, native phosphate, of Cornwall, vii, 369. ---- iron, titanic, of Baltimore, _T. G. Clemson_, xvii, 42. ---- isopyre, xv, 388. ---- kerolite, of Westchester, N. Y., _L. C. Beck_, xlvi, 34. ---- kyanite, _C. H. Rockwell_, xlvi, 383. ---- lampblack, xi, 387. ---- Latrobite, _Gmelin_, ix, 329. ---- lead, native carbonate, of Davidson Co., N. C., xli, 350. ---- ----, cupreous sulphato-carbonate of, iv, 29. ---- ---- ore, agentiferous of Lane's mine, Ct., _W. W. Mather_, xxvii, 256. ---- Ledererite, _A. A. Hayes_, xxv, 80. ---- lepidolite, _Gmelin_, ix, 329. ---- Maclureite, _H. Seybert_, v, 336. ---- magnesian hydrate of silica, _P. T. Tyson_, xviii, 79. ---- ---- ibid, _C. U. Shepard_, xviii, 81. ---- magnesite, hard, of Baumgarten, vii, 368. ---- manganese ores, _M. Berthier_, vii, 366. ---- marl from Farmington, Ct., _E. Hitchcock_, xxxvi, 176. ---- ---- from New Jersey, xvii, 277. ---- ---- from Ashley river, S. Carolina, _J. L. Smith_, xlviii, 101.