Chapter D (3)

----, ----, United States, account of, with conjectures upon, _W. Maclure_, vi, 98. ----, ----, ----, causes of general features, &c., _W. W. Mather_, xlix, 1, 284. ----, ----, ----, ibid, _T. A. Conrad_, xxxv, 237, 244. ----, ----, ----, elevation during the tertiary epoch, _T. A. Conrad_, xxxv, 245. ----, ----, ----, remarks on, _H. D. Rogers_, xxviii, 74; xlvii, 140, 247. ----, ----, ----, general review of, _E. Hitchcock_, xli, 239. ----, ----, ----, ibid, _C. Daubeny_, xli, 195. ----, ----, ----, relation to Russian, _R. I. Murchison_, xli, 208. ----, ----, ----, equivalency of rocks with European, _A. Eaton_, xxxix, 149. ----, ----, ----, oolites not occurring in, xxxviii, 126. ----, ----, ----, rocks characteristic of, _L. Vanuxem_, xvi, 254. ----, ----, ----, boulders in, see _Boulders_ and _Drift_. ----, ----, ----, scratches in, see _Scratches_. ----, ----, ----, cretaceous formation and its fossils, _S. G. Morton_, xvii, 274, 290; xviii, 243; 249^f; xxiii, 288^f; xxiv, 128^f; xlviii, 267. ----, ----, ----, ibid, a division in, _S. G. Morton_, xxviii, 277. ----, ----, ----, plastic clay in, _T. A. Conrad_, xxxviii, 91. ----, ----, ----, secondary formations of the southern states, _J. T. Hodge_, xli, 332. ----, ----, ----, Silurian system, and its characteristic fossils, _T. A. Conrad_, xxxv, 243; xxxviii, 86. ----, ----, ----, ibid, _H. D. Rogers_, xlvii, 145. ----, ----, ----, Taconic system, xlvi, 149; xlvii, 150. ----, ----, ----, tertiary, essay on, _J. Finch_, vii, 31. ----, ----, ----, ibid, remarks on, _E. Hitchcock_, xli, 246. ----, ----, ----, ibid, _H. D. Rogers_, xlvii, 254. ----, ----, ----, ibid, of Atlantic coast, _T. A. Conrad_, xxiii, 204, 339; xxviii, 104, 280^f; xli, 344.^f ----, ----, ----, ibid, of the Southern States, _J. T. Hodge_, xli, 332. ----, ----, ----, oyster shell deposits of the Atlantic coast, _L. Vanuxem_, xli, 168. ----, ----, ----, structure of the Appalachian chain, _W. B._ and _H. D. Rogers_, xliii, 177; xliv, 359. ----, ----, ----, notice of _Eaton's_ Index of the Northern States, i, 69. ----, ----, ----, notice of, _I. Lea's_ contributions to geology, xxv, 413. ----, ----, ----, trap of New England, volcanic origin of, _T. Cooper_, iv, 239. ----, ----, ----, Maine, notice of geological reports of, _C. T. Jackson_, xxxii, 193; xxxv, 387; xxxvi, 143; xxxvii, 376. ----, ----, ----, ----, remarks on, _C. T. Jackson_, xxxiv, 69. ----, ----, ----, ----, anthracite coal formation, _C. T. Jackson_, xxxvi, 149. ----, ----, ----, ----, dikes of trap of different ages, and limestones transformed by the same, _C. T. Jackson_, xxxvi, 145, 147. ----, ----, ----, ----, dolomization theory of _von Buch_ not confirmed, _C. T. Jackson_, xxxvi, 147. ----, ----, ----, ----, iron ore veins, _C. T. Jackson_, xxxvi, 147, 150. ----, ----, ----, ----, changes of level in, _C. T. Jackson_, xxxvi, 154. ----, ----, ----, ----, segregation theory of veins not sustained, _C. T. Jackson_, xxxvi, 148. ----, ----, ----, ----, fossiliferous rocks near Moose river, xxxvii, 378. ----, ----, ----, New Hampshire, excursion to White Mountains, _J. Pierce_, viii, 172. ----, ----, ----, ----, Geological Report of _C. T. Jackson_, noticed, xli, 383; xlviii, 393; xlix, 27. ----, ----, ----, ----, account of a section of, _E. Hitchcock_, i, 105^f; vi, 1.^f ----, ----, ----, ----, observations on the White Mountains, with accounts of trap dikes, granite veins, minerals, &c., _O. P. Hubbard_, xxxiv, 105.^f ----, ----, ----, Vermont, dike of trap in Montgomery, xxii, 189. ----, ----, ----, ----, supposed volcano of West River Mountain, _J. A. Allen_, iii, 73. ----, ----, ----, ----, account of section of, _E. Hitchcock_, i, 105^f; vi, 1.^f ----, ----, ----, Massachusetts, account of, _C. Dewey_, viii, 1^f, 240. ----, ----, ----, ----, ibid, _E. Hitchcock_, i, 105^f; vi, 1.^f ----, ----, ----, ----, ibid, _A. Smith_, xxii, 205.^f ----, ----, ----, ----, vicinity of Lowell, xxvii, 340. ----, ----, ----, ----, Hampshire Co., with an account of the lead mines, _A. Nash_, xii, 238.^f ----, ----, ----, ----, vicinity of Williams College, _C. Dewey_, i, 337.^f ----, ----, ----, ----, Martha's vineyard and the Elizabeth Islands, vii, 240.^f ----, ----, ----, ----, economical review of, _E. Hitchcock_, xxxvi, 363. ----, ----, ----, ----, granite veins and beds of Chester, _E. Emmons_, viii, 250.^f ----, ----, ----, ----, report on, _E. Hitchcock_, xxii, 1^f; xxiii, 389; xxvi, 213; xxxvi, 363; xli, 384. ----, ----, ----, ----, sandstone of Connecticut valley, _E. Hitchcock_, vi, 39; xli, 244. ----, ----, ----, ----, ibid, cause of dip, xliii, 170; xlvii, 107. ----, ----, ----, ----, terraces and ancient lakes, _A. Smith_, xxii, 214, 216. ----, ----, ----, ----, syenite and amygdaloid, Salem, iii, 232. ----, ----, ----, ----, changes produced by the Saxicava, in Plymouth sound, xlii, 326. ----, ----, ----, R. Island, some notice of the rocks of, from _C. T. Jackson's_ report, xl, 182. ----, ----, ----, Connecticut, rocks of the Connecticut valley, vii, 25. ----, ----, ----, ----, water courses and geology of the Connecticut valley, terraces, ancient lakes, &c., xxii, 205.^f ----, ----, ----, ----, account of the Connecticut valley, _E. Hitchcock_, vi, 1^f, 201; vii, 1. ----, ----, ----, ----, New Haven and Litchfield Cos., _B. Silliman_, ii, 201. ----, ----, ----, ----, Salisbury, Conn., _C. A. Lee_, viii, 252. ----, ----, ----, ----, map of New London and Windham Cos., _W. Lester, Jr._, xxiii, 404. ----, ----, ----, ----, junction of trap and sandstone at Wallingford, _A. B. Chapin_, xxvii, 104.^f ----, ----, ----, ----, section from Killingly to Haddam, _W. W. Mather_, xxi, 94.^f ----, ----, ----, ----, trap rocks, igneous origin of, _B. Silliman_, xvii, 119. ----, ----, ----, ----, survey authorized, xxviii, 381. ----, ----, ----, ----, report of _C. U. Shepard_, noticed, xxxiii, 151. ----, ----, ----, ----, ibid, of _J. G. Percival_, xxxii, 399; xliv, 187. ----, ----, ----, New York, annual reports of survey, noticed, xxxii, 186; xxxvi, 1; xxxix, 95; xl, 73; xlii, 227. ----, ----, ----, ----, final report of survey, reviewed, _D. D. Owen_, xlvi, 143; xlvii, 354^f; xlviii, 296.^f ----, ----, ----, ----, account of the rocks of, _C. Dewey_, xxxiii, 121. ----, ----, ----, ----, oolite in Orange Co., xix, 398. ----, ----, ----, ----, ibid, of Saratoga and elsewhere, _J. H. Steele_, ix, 16.^f ----, ----, ----, ----, the secondary region, _J. Pierce_, ii, 181. ----, ----, ----, ----, western New York, _G. E. Hayes_, xxxi, 241; xxxv, 86.^f ----, ----, ----, ----, Albany county, iii, 239. ----, ----, ----, ----, Canaan Mts., section, _H. D. Barnes_, v, 8.^f ----, ----, ----, ----, ibid, subsidence about, v, 15. ----, ----, ----, ----, Carthage bridge, near the mouth of Genesee river, _J. I. Bigsby_, ii, 250. ----, ----, ----, ----, Catskill Mts., _H. E. Dwight_, ii, 11. ----, ----, ----, ----, ibid, _D. W. Barton_, iv, 249.^f ----, ----, ----, ----, ibid, _J. Pierce_, vi, 86. ----, ----, ----, ----, Erie canal route, _A. Eaton's_ survey noticed, vi, 373; viii, 358; ix, 355; xiii, 383. ----, ----, ----, ----, Essex Co., and northern sources of the Hudson, some remarks on, _W. C. Redfield_, xxxiii, 301.^f ----, ----, ----, ----, Highlands, _A. Eaton_, v, 231. ----, ----, ----, ----, ibid, _W. W. Mather_, xxi, 97. ----, ----, ----, ----, ibid, _J. Pierce_, v, 26. ----, ----, ----, ----, Hudson river region, iv, 33. ----, ----, ----, ----, ibid, tertiary, _J. Finch_, x, 227. ----, ----, ----, ----, Mohawk alluvial deposits, xxiii, 207. ----, ----, ----, ----, Niagara region, iv, 35; xi, 213.^f ----, ----, ----, ----, ----, recession of the falls, _G. E. Hayes_, xxxv, 100.^f ----, ----, ----, ----, ----, ib., _J. B. Gibson_, xxix, 204. ----, ----, ----, ----, ----, _H. D. Rogers_, xxvii, 326.^f ----, ----, ----, ----, Ontario valley, _J. Geddes_, xi, 213.^f ----, ----, ----, ----, Orange Co., oolite in, xix, 398. ----, ----, ----, ----, Portage, two sections, _J. Hall_, xlv, 329. ----, ----, ----, ----, Rensselaer Co., survey in progress, iv, 189; --ibid, noticed, v, 203. ----, ----, ----, ----, Rochester, polished limestone of, _C. Dewey_, xxxvii, 240. ----, ----, ----, ----, Salina salt formation, _J. Forman_, xix, 141. ----, ----, ----, ----, salt springs, see _Springs_. ----, ----, ----, ----, Saratoga lake, and its environs, with Snake Hill, _J. H. Steele_, ix, 1.^f ----, ----, ----, ----, Scoharie Co., _J. Gebhard_, xxviii, 172.^f ----, ----, ----, ----, St. Lawrence Co., _J. Finch_, xix, 220. ----, ----, ----, ----, St. Lawrence and Jefferson Cos., _J. B. Crawe_ and _A. Gray_, xxv, 346. ----, ----, ----, ----, Sullivan Co., xxiii, 243. ----, ----, ----, ----, Taconic range, section of, to Troy, _C. Dewey_, ii, 246. ----, ----, ----, ----, Troy, _M. Hale_, iii, 72. ----, ----, ----, ----, Troy, gravel near, _A. Eaton_, v, 22. ----, ----, ----, New Jersey, alluvial district of, with remarks on the marl, _J. Pierce_, vi, 237. ----, ----, ----, ----, secondary region of, _J. Pierce_, ii, 181. ----, ----, ----, ----, cretaceous formation, _S. G. Morton_, xxii, 90; xxiii, 288; xlviii, 265^f, 267. ----, ----, ----, ----, ibid, _C. Lyell_, xlvii, 213. ----, ----, ----, ----, Hoboken serpentine rocks, _T. Nuttall_, iv, 16. ----, ----, ----, Pennsylvania, coal regions and mines of, see _Coal_. ----, ----, ----, ----, western, _S. P. Hildreth_, xxix, 51, 71, 74, &c. ----, ----, ----, ----, Wyoming, &c., _B. Silliman_, xviii, 309^f; xix, 1.^f ----, ----, ----, ----, near Easton, _J. Finch_, viii, 236.^f ----, ----, ----, ----, near Bedford Springs, _H. H. Hayden_, xix, 97. ----, ----, ----, ----, near Westchester, _J. Finch_, xiv, 15. ----, ----, ----, ----, mineral resources, _J. Pierce_, xii, 54. ----, ----, ----, ----, scenery, xxi, 197. ----, ----, ----, ----, survey proposed, xii, 173. ----, ----, ----, ----, _H. D. Rogers's_ report noticed, xxxii, 192; xxxiv, 188; xxxvii, 380. ----, ----, ----, Maryland, Appalachian chain in, _W. E. A. Aikin_, xxvi, 219.^f ----, ----, ----, ----, report on, _J. T. Ducatel_ and _J. H. Alexander_, xxvii, 1; xxxii, 191. ----, ----, ----, ----, survey of, xxx, 393. ----, ----, ----, ----, report on the new map of, noticed, xxxii, 191. ----, ----, ----, ----, Bare Hills, near Baltimore, _H. H. Hayden_, xxiv, 349.^f ----, ----, ----, Virginia, account of part of, and Tennessee, _J. H. Kain_, i, 60. ----, ----, ----, ----, ibid, with parts of Alabama and Mississippi, _E. Cornelius_, i, 214, 317.^f ----, ----, ----, ----, coal mines and strata of, see _Coal_. ----, ----, ----, ----, gold mines of, see _Gold_. ----, ----, ----, ----, Kenawha and other western valleys, _S. P. Hildreth_, xxix, 83. ----, ----, ----, ----, shell marl regions, _J. Pierce_, xi, 54. ----, ----, ----, ----, tertiary formation, _W. B._ and _H. D. Rogers_, xxxviii, 183. ----, ----, ----, ----, report on, of _W. B. Rogers_, noticed, xxxii, 192; xxxvii, 380. ----, ----, ----, N. and S. Carolina, account of parts of, _J. Dickson_, iii, 1. ----, ----, ----, ----, ibid, _T. D. Porter_, iii, 227. ----, ----, ----, ----, gold region, see _Gold_. ----, ----, ----, N. Carolina, basalt, basaltic dikes, ("natural walls,") and petrifactions, _J. Beckwith_, v, 1. ----, ----, ----, ----, natural walls of Rowan, xiv, 242. ----, ----, ----, ----, mining districts of western part, _J. Peck_, xxiii, 1.^f ----, ----, ----, ----, origin and character of the low country, _E. Mitchell_, xiii, 336. ----, ----, ----, ----, notice of _D. Olmsted's_ report, xiv, 230. ----, ----, ----, ----, red sandstone formation in, _D. Olmsted_, ii, 175. ----, ----, ----, ----, survey proposed, v, 202. ----, ----, ----, Georgia, Alabama and Florida, with account of fossils in, silicified from thermal springs, _C. U. Shepard_, xxv, 162. ----, ----, ----, Alabama, sketches of, _W. S. Porter_, xiii, 77. ----, ----, ----, ----, Greene Co., _R. W. Withers_, xxiv, 187. ----, ----, ----, ----, near Centerville, xlviii, 399. ----, ----, ----, ----, the galt in, _S. G. Morton_, xxviii, 277. ----, ----, ----, ----, tertiary, with a list of fossils, xxv, 417, 419. ----, ----, ----, Floridas, _J. Pierce_, ix, 119. ----, ----, ----, ----, East, remarks on, xxxv, 60. ----, ----, ----, Mississippi valley, lower part, _R. Nutt_, xxiii, 49. ----, ----, ----, ----, _L. Bringier_, iii, 15. ----, ----, ----, Texas, Trinity country, _J. L. Riddell_, xxxvii, 211. ----, ----, ----, ----, hog-wallow prairies, xxxix, 211. ----, ----, ----, Ohio, account of, _S. P. Hildreth_, x, 1; xxv, 217. ----, ----, ----, ----, valley, including part of Pennsylvania and Virginia, _S. P. Hildreth_, xxix, 1.^f ----, ----, ----, ----, climate, diseases, &c., _C. Atwater_, xi, 224. ----, ----, ----, ----, tertiary deposits, xxxiv, 360. ----, ----, ----, ----, saliferous formation, _S. P. Hildreth_, xxiv, 46; xxix, 26. ----, ----, ----, ----, buhrstone, xxix, 142; xxxiv, 352. ----, ----, ----, ----, grotto of plants, xxix, 18.^f ----, ----, ----, ----, Falls of the Cuyahoga, _S. P. Hildreth_, xxxi, 47.^f ----, ----, ----, ----, rocks of, xl, 126. ----, ----, ----, ----, Belmont Co., _C. Atwater_, i, 226. ----, ----, ----, ----, reports on, noticed, of _S. P. Hildreth_, xxxii, 190; xxxiv, 196, 347. ----, ----, ----, ----, ibid, of _W. W. Mather_, xxxiv, 196, 347; xl, 126. ----, ----, ----, ----, ibid, of _Mr. Briggs_, xxxiv, 197. ----, ----, ----, ----, ibid, of _Mr. Whittlesey_, xxxiv, 197. ----, ----, ----, ----, coal, see _Coal_. ----, ----, ----, Western States, _D. D. Owen_, xliv, 365; xlv, 151, 163. ----, ----, ----, ----, _J. Locke_, xli, 160; xliii, 147. ----, ----, ----, ----, _J. Hall_, xlii, 51. ----, ----, ----, ----, _G. W. Featherstonhaugh's_ report noticed, xxviii, 379; xxxii, 185. ----, ----, ----, Michigan, observations on, _J. Pierce_, x, 304. ----, ----, ----, ----, rocks of, xl, 136. ----, ----, ----, ----, mining region of, _D. Houghton_, xli, 183. ----, ----, ----, ----, _D. Houghton's_ reports on, noticed, xxxiv, 190; xl, 136. ----, ----, ----, ----, N. W. portion of Lake Huron, _J. J. Bigsby_, iii, 254.^f ----, ----, ----, ----, Fort Winnebago, _D. Ruggles_, xxx, 1.^f ----, ----, ----, ----, Kewenaw Point, _C. T. Jackson_, xlix, 81. ----, ----, ----, Indiana, _W. B. Stilson_, i, 131. ----, ----, ----, ----, _D. D. Owen's_ report noticed, xxxiv, 193; xl, 133. ----, ----, ----, ----, Wayne Co., _J. T. Plummer_, xliv, 281.^f ----, ----, ----, Illinois, upper, _C. U. Shepard_, xxxiv, 134.^f ----, ----, ----, Missouri, cretaceous formation, _J. N. Nicollet_, xli, 180; xlv, 153. ----, ----, ----, ----, lead, see _Lead_. ----, ----, ----, ----, limestone of the lead region, iii, 248. ----, ----, ----, Mississippi valley and the lakes, _J. B. Gibson_, xxix, 201. ----, ----, ----, ----, _H. King_, xlvii, 128. ----, ----, ----, Tennessee, East, _J. Peck_, xxiii, 1.^f ----, ----, ----, ----, _G. Troost's_ report noticed, xxx, 391; xxxiv, 187. ----, ----, ----, Kentucky, near Louisville and Shippingsport canal, _I. A. Lapham_, xiv, 65.^f ----, ----, ----, Oregon, or West of the Rocky Mountains, _A. Eaton_, xxv, 351. ----, ----, ----, ----, _J. Ball_, xxviii, 1. ----, American, West Indies, _Nugent_, i, 140. ----, ----, ---- ----, St. Croix and Antigua, _S. Hovey_, xxxv, 64, 75. ----, ----, ---- ----, shell limestone, _S. Hovey_, xxxv, 71. ----, ----, ---- ----, chert, siliceous petrifactions, xxxv, 79. ----, ----, ---- ----, coral limestone raised in Dominica, St. Christopher's, St. Eustatia, &c., iv, 218. ----, ----, ---- ----, Cuba, oolitic strata, _I. Lea_, xl, 41. ----, South America, New Grenada, oolitic strata, _I. Lea_, xl, 41. ----, ---- ----, mining regions of Peru, xvii, 43. ----, ---- ----, Montevideo, xxix, 240. ----, ---- ----, Tarapaca Province, _J. H. Blake_, xliv, 1.^f ----, Sandwich Islands, rocks and minerals of, xvi, 345. ----, ---- ----, notices of, _C. S. Stewart_, xx, 229. ----, ---- ----, Hawaii, xi, 1. ----, ---- ----, ----, _E. G. Kelley_, xl, 117.^f ----, ---- ----, ----, Mauna Loa, xvi, 346. ----, ---- ----, Oahu, _J. D. Dana_, xliv, 407. ----, ---- ----, ----, _A. Ball_, xxviii, 15. ----, ---- ----, see further, under _Volcano_.

Geometry, by _N. I. Larkin_, ii, 359. ----, analytical, _C. Wilder_, xx, 285.^f

Georama at Paris, ix, 204; xii, 190.

Germany, city of Berlin, notice of, xx, 389.

German silver, made by _M. Frick_, xiii, 172. ---- Correspondent, a paper in New York, ii, 178.

Germination, influence of light on, _R. Hunt_, xlvi, 397. ---- of cellules, _C. Vogt_, xlv, 213.

Geum, species of, iv, 64; xlii, 35.

Geysers, remarks on, _G. Bischof_, xxxvi, 255. ---- of Iceland, siliceous concretions from, xxxi, 167; xxxii, 196.

_Gibbes, L. R._, on the resistance of fluids, xxvii, 135.

_Gibbon, J. H._, visit to the salt works of Zipaquera, xxxii, 89.

_Gibbs, G_., on the dry rot, ii, 114. ----, method of augmenting the force of gunpowder, i, 87. ----, connexion between magnetism and light, i, 89. ----, on the tourmalines and other minerals of Chesterfield, Mass., i, 346. ----, mineral cabinet of, at Yale College, ii, 169.

_Gibbs, J. W._, characteristics of some African dialects, xxxviii, 41; xxxix, 255. ----, contributions to English lexicography, xxxiii, 324; xli, 28. ----, ibid, origin of the names of beasts, birds and insects, xli, 32. ----, on the adverbial genitive case in English, xlv, 96. ----, on Greek conjugations, xxxvii, 112. ----, table of Greek correlatives, xxxiv, 337. ----, on Greek verbal roots in English, xlv, 284. ----, on the orthography of Hebrew words in the Roman character, xxiv, 87.

_Gibbs, O. W._, new form of magneto-electric machine, and account of a carbon battery, xxxix, 132. ----, on a natural system of chemical classification, xlix, 384.

Gibbsite in Massachusetts, iii, 239, (called Wavellite); v, 269; vi, 247, 364; viii, 52. ---- in New York, xl, 75.

_Gibson, J. B._, on the geology of the lakes and the valley of the
Mississippi, xxix, 201.

Gigantolite, analysis of, xlii, 387.

Gilding by electrography, xli, 402.

Gin, loss of memory from the use of, xxvi, 211.

_Girard, P. S._, on navigable canals, iv, 102; vii, 286.

_Girardin_, analysis of guano, xlviii, 181.

Glaciers and boulders in Switzerland, _L. Agassiz_, xli, 59, 190. ---- in Switzerland, extent of, xlii, 357. ---- of the Alps, account of, _J. D. Forbes_, xlvi, 173. ---- in Scotland, former existence of, xli, 191. ----, a week among, _H. A. Grant_, xlvi, 281.

Glacier theory of _L. Agassiz_, xlii, 346.^f ---- ----, remarks on, _E. Hitchcock_, xliii, 396. ---- ---- of drift, _E. Hitchcock_, xlv, 324. ---- ---- ----, remarks on, _H. D. Rogers_, xlvii, 268.

Glasgow, supply of water to, iii, 372.

Glass, manufacture of, iii, 370. ----, ----, _H. N. Fenn_, xvi, 112.^f ---- from burning hay, xix, 395; xxiv, 174. ----, blowing of, xxiv, 380. ----, cloth of, xxxix, 386. ----, ductility of, viii, 392. ----, on the decomposition of, _D. Brewster_, xl, 324. ----, decay of an object-, xxviii, 69. ---- decomposed, rings of polarized light produced in specimens of, _D. Brewster_, xl. 325. ----, dividing of, by friction, _R. Hare_, xiii, 7.^f ----, _Guinand's_ flint, ix, 380. ----, opaline, cause of color of, xxvi, 66. ---- for optical purposes, manufacture of, _A. Bourne_, xl, 207. ----, porosity of, vii, 192. ----, spectacle, xxvii, 80. ----, silvering of, according to _Drayton's_ method, xlix, 198. ---- beads, manufactory of, at Venice, xxvii, 78. ---- houses, improved mode of drying wood for, xvii, 163. ---- vessels, method of cutting, xxiv, 206. ---- or porcelain vessels, a crust formed on, removed by muriatic acid, xxvi, 188.

Glasses, lamp, to prevent the cracking of, xxi, 165.

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 ----, glandulous, vi, 20.

Goat, Cashmere Angora, remarks on, xxv, 208.

_Göbel's_ observations on formic acid, xxviii, 127.

_Godfrey, T._, grave of, xxxv, 389.

_Göthe, F. W._, honors to, from the king of Bavaria, ix, 184; xv, 171.

Goitre, causes of, iv, 339; xxii, 355.

Gold coinage in the United States, xx, 403. ----, amount deposited at the mint of the U. States, xx, 404. ----, an alloy imitating, x, 384; xiv, 371. ----, alembic for distilling amalgam of, _M. F. Maury_, xxxiii, 66.^f ----, new cyanide of, xlviii, 191. ----, fulminating, ii, 350; xlviii, 192. ----, medical uses of, xvi, 385. ----, method of refining, xvii, 177. ----, mosaic, xiii, 174. ---- oxides, purple of Cassius, ii, 350; xx, 192; xxviii, 145; xlviii, 192. ----, native, in Canada, _F. H. Baddely_, xxviii, 112. ----, ----, at New Fane, Vt., xii, 177; xxii, 63. ----, ----, in Maryland, xvii, 202. ----, ----, in Virginia, in talcose slate, _H. H. Hayden_, xx, 164. ----, ----, ----, account of mines and region, _B. Silliman_, xxxii, 98. ----, ----, ----, Moss and Busby's mines, _B. Silliman_, xxxii, 99. ----, ----, ----, Culpeper mine, _B. Silliman_, xxxii, 117, 185. ----, ----, ----, Louisa county mines, _B. Silliman_, xxxii, 126. ----, ----, ----, Fauquier and Culpeper Co. mines, _B. Silliman_, xxxii, 127. ----, ----, ----, large masses of, _B. Silliman_, xxxii, 101. ----, ----, ----, experiments on different varieties of rock containing, _B. Silliman_, xxxii, 105. ----, ----, ----, U. States mine near Fredericksburg, _M. F. Maury_, xxxii, 325. ----, ----, ----, ----, ibid, mode of working and yield, xxxii, 183. ----, ----, in Carolina, miscellaneous notices of, iii, 3; xvi, 360; xvii, 400; xlviii, 398. ----, ----, ----, large masses of, ix, 9. ----, ----, ----, _D. Olmsted_, on the mines of, ix, 5; xiv, 237. ----, ----, ----, remarks on mines of, _C. E. Rothe_, xiii, 201.^f ----, ----, ----, miscellaneous notices of the geology of the region of, _E. Mitchell_, xvi, 1.^f ----, ----, ----, on the nature of deposits, _F. L. Smith_, xxxii, 130. ----, native, of the Carolinas, in talcose slate, _A. Eaton_, xviii, 50. ----, ----, in Georgia, mines of, _W. Phillips_, xxiv, 1.^f ----, ----, ----, ----, washing for, xxiv, 14.^f ----, ----, ----, remarks on, xxxiv, 397. ----, ----, ----, analysis of, _W. W. Mather_, xxvii, 255. ----, ----, ----, western North Carolina and eastern Tennessee, geological account of districts, _J. Peck_, with a map, xxiii, 1.^f ----, ----, region of the U. States, xxvii, 348. ----, ----, yield of branch mines of U. States, xxvii, 350. ----, ----, of Mexico, in a rock equivalent to that containing the gold of the Carolinas, _A. Eaton_, xx, 124. ----, ----, mines of Brazil, yield of, xx, 403. ----, ----, in France, xl, 216. ----, ----, in Russia, annual yield, xvii, 406; xx, 402; xxi, 372. ----, ----, ----, in the Ural, deposit, ix, 183; xxviii, 395; xlvi, 211. ----, ----, ----, mines of Tobolsk, xvii, 25. ----, ----, a mass of twenty-five lbs., from the Russian mines, xii, 384. ----, ----, large mass of, found in N. Carolina, ix, 9. ----, ----, large masses of, in Virginia, _B. Silliman_, xxxii, 101. ----, ----, table showing the amount yielded by mines, xx, 401. ----, ----, containing rhodium, from Mexico, xi, 298. ---- coins, wear and tear of, throughout the world, xx, 402. ---- coinage, in the United States, amount of, xx, 403. ---- leaf, the blue color of transmitted light, _Dupasquier_, xlix, 391. ---- ----, adhering through electrical attraction, v, 198.

Goniometer, reflecting, improvement suggested by _A. Eaton_, xx, 158. ----, ----, simplification of Wollaston's, _R. Graves_, xxiii, 75.^f ----, ----, new mode of adjusting, xlvi, 372.^f

_Gonord_, a mode of enlarging an engraving on a copper plate, ii, 342.

Good Hope, Cape of, geology, scenery, &c., G. Champion, xxix, 230.

_Goode, W. H._, the daguerrotype and its applications, xl, 137.

_Goodrich, C. E._, notice of a peculiarity in vision, xiv, 264.^f

_Göppert, H. R._, views on the lapidification of vegetables,
xxxiii, 109.

_Gorham, J._, a new work on chemistry announced, i, 434; iii, 331.

_Gorton, T._, some properties of a rampant arch, xxvii, 303.^f ----, on railroad curves, xxvii, 131.^f ----, turnouts in railroads, xxviii, 248.

Goshen minerals, ix, 21.

Goshenite, xlvii, 350. ----, _C. U. Shepard_, xlviii, 174, 176.

Gossamer spider, xvi, 399.

_Gould, A. A._, Report on the invertebrate animals of Massachusetts, xli, 378. ----, on zoological nomenclature, xlv, 1.

_Gould, D._, direct demonstration of the binomial theorem, xix, 50. ----, rational expression for sines, tangents and secants, xxii, 392.

Graduating instrument, new, iv, 398.

_Graham, T._, on the constitution of salts, xxxv, 300. ---- on Dumas's law of substitutions in chemistry, xxxviii, 114.

_Graham, Maria_, on the rise of the coast of Chili, xxviii, 237.

Grains, cereal, analyses of, _C. T. Jackson_ and _A. A. Hayes_,
xiv, 339.

_Grammer, J._, coal mines near Richmond, Va., i, 125.

_Granger, E._, vegetable impressions on the rocks of the coal formation
at Zanesville, Ohio, iii, 5.^f

Granite, artificial, xxiv, 205. ----, durability of, as compared with marble, xv, 168. ---- of Northern America, xvii, 1, _et seq._ ----, in Canada, origin of, _R. H. Bonnycastle_, xxx, 246. ---- intermixed with a fossiliferous limestone at Cataraqui, xviii, 104. ---- in Nova Scotia, xv, 206. ---- in New Hampshire, veins of, _O. P. Hubbard_, xxxiv, 123.^f ----, ----, porphyritic, vi, 10. ----, in Massachusetts, viii, 4; xxii, 14. ----, ----, graphic, i, 138; vi, 16; vii, 22.^f ----, ----, porphyritic, viii, 4. ----, ----, pseudomorphous, vi, 17; vii, 22.^f ----, ----, veins of, _E. Hitchcock_, vi, 13. ----, ----, ----, _C. Dewey_, viii, 4. ----, ----, ----, _E. Emmons_, viii, 250.^f ----, ----, ----, in mica slate, viii, 5.^f; xxvii, 344. ----, ----, ----, in granite, _A. Nash_, xii, 261.^f ----, ----, ----, in syenite, vi, 14.^f ---- in the Connecticut valley, vi, 1, _et seq._ ---- in Connecticut, graphic, ii, 204, 240. ---- in Pennsylvania, viii, 237. ---- in Vermont, at Bellows Falls, Vt., vi, 11. ---- quarry at Port Deposit and elsewhere, Maryland, xxvii, 19, 20. ---- in Italy, secondary, vii, 186. ---- at Christiana, Norway, xxxiv, 204. ----, views of _C. Lyell_ on, xxxiii, 116. ---- sometimes metamorphic, _J. D. Dana_, xlv, 108. ----, means of polishing, viii, 185. ----, polishing of, in India, iv, 246.

Granitogeny, a poem, v, 283.

_Grant, H. A._, a week among the glaciers, xlvi, 281.

Graphic granite in Massachusetts, i, 138; vi, 16; vii, 22.^f ---- ---- in Connecticut, ii, 204, 240.

Graphite, conversion of cannon balls into, iv, 178. ---- in coal-gas retorts, vii, 380. ----, formed by pressure, xlix, 227. ----, fusion of, by galvanism, vi, 341. ---- of Sturbridge, Mass., xviii, 377. ---- of Worcester, Mass., probable age of, _C. Lyell_, xlvii, 214. ---- of Wake, N. Carolina, notice of, _D. Olmsted_, xiv, 243. ----, mode of working mine of, at Borrowdale, xxxi, 177. ---- of Ticonderoga, vi, 178. ---- at Mount Dunderberg, N. Y., v, 29. ----, for chronometers instead of oil, xviii, 179. ---- in Maine, x, 17. ---- in New Hampshire, ii, 241; vi, 245. ---- in Massachusetts, vi, 248; viii, 54; x, 18; xviii, 377; xxii, 47. ---- in Connecticut, i, 239, 354; ii, 238; viii, 259; xxxiii, 164. ---- in New York, i, 237; iv, 48; v, 29; vi, 178; ix, 41; xix, 224; xl, 75. ---- in New Jersey, v, 246. ---- in Pennsylvania, x, 220; xiv, 10, 14. ---- in Maryland, xviii, 80. ---- in the Carolinas, iv, 53; v, 263, 264, 407; xiv, 243. ---- in Canada, viii, 74. ---- battery, _B. Silliman, Jr._, xliii, 393; xliv, 180.^f

Graptolites, remarks on, xlvii, 370.^f

Grasshopper's leg a substitute for frogs in galvanic experiments,
_J. W. Bailey_, xxxi, 292.^f

Grasses, the importance of, to man, _W. Darlington_, xli, 365.

Gratiola micrantha, v, 287. ---- missouriana, x, 258.

Gravel, singular deposit near Troy, _A. Eaton_, v, 22.

_Graves, R._, a gelatinous meteor, ii, 335. ----, on a simplification of Wollaston's goniometer, xxiii, 75.^f

Gravity, specific, on the means of taking, _R. Hare_, xi, 121.^f ----, ----, of various minerals, _Breithaupt_, xxxi, 268. ----, varying in its action, leading to errors in determinations of the earth's figure, xv, 172.

_Gray, A._, botanical excursions to the mountains of N. Carolina, xlii, 1. ----, notices of European herbaria, especially those interesting to American botanists, xl, 1. ----, selections from the correspondence of Cadwallader Colden, xliv, 85. ----, synonymy of several North American plants of the Orchis tribe, xxxviii, 306. ----, remarks on vegetable fecundation, xxxi, 308.

Grease of wines, xxii, 192.

Greece, modern and ancient, notices of, _S. G. Howe_, xviii, 250. ----, remarks on the antiquities of, and the efforts to preserve, xxxvi, 192. ----, Grecian Archipelago, iron, rutile, serpentine and heavy spar in, xxxi, 175. ----, model farm in, xix, 193.

Grecian University at Corfu, ii, 348.

_Green, H._, vegetable organography and physiology, xxxviii, 49.

_Green, Jacob_, air lamp, inflammable, ii, 330.^f ----, blowpipe, new, iv, 164.^f ----, crystallization instantaneous, instance of, iii, 93. ----, ---- of snow, ii, 337.^f ----, petrified tree near Chitteningo, New York, v, 251. ----, rattlesnake bones, curious fact concerning, iii, 85. ----, trilobites, notice of a monograph on, xxiii, 395. ----, ----, new, xxv, 334. ----, ----, structure of, &c., xxxvii, 25.^f ----, ----, genus Paradoxides of _Brongniart_, and on the genus Triarthrus, xxxiii, 341. ----, ----, Calymene Rowii, xxxiii, 406. ----, ----, Calymene bufo, note on, xxxviii, 410. ----, ----, Asaphas diurus, xxxvii, 40.

_Green, James_, barometer and other instruments, construction of,
xxvii, 292.

Green, Schweinfurt's, preparation of, vii, 386.

Green malachite, see _Malachite_. ---- earth in Massachusetts, i, 113. ---- paint, a new, for artists, xxviii, 148. ---- sand in France, viii, 217. ---- ---- in New Jersey, see _Cretaceous_.

Greenland, east coast, formerly inhabited by Europeans, xv, 166. ----, subsidence of the coast of, xxx, 379. ----, rocks and country of, xvii, 14. ----, population of, iii, 384. ----, ice, i, 101.

Greenstone in Western Massachusetts, viii, 9. ---- of Nova Scotia, xiv, 305. ---- of the Connecticut valley, account of, _E. Hitchcock_, vi, 31, 44. ----, junction of with the sandstone, vi, 47. ----, columnar, Connecticut valley, vi, 53. ----, degradation of, vi, 55. ----, dikes of, Connecticut valley, vi, 47, 56. ----, see further under _Trap_.

Greek conjugations, _J. W. Gibbs_, xxxvii, 112. ---- correlatives, _J. W. Gibbs_, xxxiv, 337. ---- fire, _J. Cutbush_ on, vi, 302. ---- verbal roots in English, _J. W. Gibbs_, xlv, 284.

Grevilleanum serratum, xi, 183.^f

Greystone, characters of, xv, 32.

_Griffith, Mary_, on the halo which surrounds all bodies, xxxviii, 22.

Grindstones of Nova Scotia, xv, 148; xxx, 338.

_Griscom, J._, on botanical fêtes in France, ix, 154.

_Griswold, C._, submarine explosion, ii, 94.

_Gronovius, J. F._, letters from, to C. Colden, xliv, 85.

Grooves in rocks, see _Scratches_.

Grotto del Cane, xxiv, 244.

Grove's voltaic battery, xxxviii, 116. ---- ---- ----, experiments with, _S. F. B. Morse_, xlv, 390.^f ---- ---- ----, on the use of carbon in, _B. Silliman, Jr._, xliii, 393; xliv, 180.^f

Groves of evergreens, their value near gardens, &c., xxii, 158.

Growth of wheat, on the acceleration of, _G. W. Hall_, xxxi, 345. ---- of timber, xxiv, 391.

Guaco, notice of, xxii, 182. ----, medical virtues of, confirmed, _W. R. Johnson_, xxvii, 171. ----, remedy for hydrophobia, _W. R. Johnson_, xxiv, 279. ----, note on, xxiv, 388.

Guadaloupe fossil human skeleton, description of the skull of,
_J. Moultrie_, xxxii, 361.

Guano, remarks on, _J. E. Teschemacher_, xlvi, 203. ----, account and analysis of, xlviii, 181. ----, change in bones in, _R. Warrington_, xlix, 391. ----, xanthic oxide in, xlix, 200. ----, xanthine in, _Unger_, xlix, 391.

_Guillemin, J. B. A._, on the bitterness of vegetables, xxiv, 273.

Gulf of Mexico, accumulation of water in, supposed from the action of
the Gulf Stream, v, 353.

Gulf Stream, cause of, v, 353. ---- ----, existence of, determined by _B. Franklin_, xlvii, 162. ---- ----, supposed connection of, with opposite currents on the coast of the United States, _W. C. Redfield_, xxxii, 349. ---- ----, extent of, xxxii, 350. ---- ----, ice of the north brought within the dissolving influence of, on the Newfoundland bank, _W. C. Redfield_, xxxii, 351. ---- ----, loss of vessels in, xx, 158. ---- ----, remarks on, _M. F. Maury_, xlvii, 161.

Gum, composition of, xxii, 350. ---- ammoniacum, xx, 399.

Gun barrels, browning of, xxxiv, 45.

Gunpowder, _A. Ure_ on the composition of, xx, 190. ----, experiments on, _A. Mordecai_, xlix, 180. ----, inflamed underwater, xxii, 354. ----, method of augmenting the force of, _Geo. Gibbs_, i, 87. ----, safe process for manufacturing, _S. Guthrie_, xxi, 292.

_Guthrie, S._, mode of obtaining chloric ether, xxi, 64; xxii, 105. ----, chemical products by, xxi, 92. ----, fulminating preparations, xxi, 288, 293. ----, gunpowder, safe process, xxi, 292. ----, molasses from the potato, xxi, 93. ----, sugar from potato starch, xxi, 284. ----, purification of turpentine, xxi, 291. ----, pure oil of turpentine, xxi, 93. ----, vaporization of mercury in the fumes of nitric ether, xxi, 90.

Gymnasium at New Haven, xiii, 385; xiv, 400.

Gymnastic science in France, x, 176.

Gymnastics in Switzerland, v, 191.

Gypsies, essay on, xxiv, 342. ---- in America, xxvi, 189.

Gypsum, action of, as a manure, xxvi, 181. ----, experiments on the solidification of, _J. P. Emmet_, xxiii, 209. ----, fertilizing properties of, xxii, 350. ----, origin of, _L. Vanuxem_, xii, 92. ----, curved, mammoth cave, Ky., xlii, 206.^f ---- of the basin of mines, Nova Scotia, xv, 146. ----, localities of, in New York, i, 243; iv, 36; v, 39, 40; xvi, 377; xxxvi, 38. ----, ----, in Maryland, xxvii, 8. ----, ----, in Ohio, iv, 51, 52; v, 39; vii, 48; xvi, 158. ----, ----, in Canada, viii, 71. ----, ----, in Michigan, vii, 47. ----, ----, in Virginia, i, 62; iv, 52. ----, ----, Prince Regent's Inlet, xvii, 10. ----, ----, in Nova Scotia, xiv, 229; xv, 146. ----, ----, in the Hartz, xix, 111. ----, ----, in Sicily, viii, 204. ----, ----, in Africa, iv, 33. ---- and accompanying marine limestones, in Nova Scotia, age and position of, _C. Lyell_, xlv, 356.

Gyropodium coccineum, ix, 56.^f

H.

Hæmatoxylin, _O. L. Erdman_, xliv, 357.

Hail, formation of, xix, 396.

Hail storms, cause of, in warm weather, _B. Hallowell_, xv, 361. ---- ----, phenomena and causes of, _D. Olmsted_, xviii, 1.^f ---- ----, reply to _A. T. Christie_ on, by _D. Olmsted_, xx, 373. ---- ----, _A. T. Christie's_ views on, xx, 373. ---- ----, _A. Jones_, xxiii, 35.^f ----, ----, remarks on, _W. C. Redfield_, xxxiii, 55. ----, ---- in Louisiana, _W. M. Carpenter_, xxvii, 171. ----, ----, rods a protection against, x, 196.

Hail-rods, in France, x, 196; xii, 398. ---- ----, ----, efficacy of, xiv, 37.

_Haile, A. B._, observations on the magnetic disturbance during an
Aurora, Nov., 1837, xxxiv, 270.

Hailstones, structure of, xxiii, 36.^f ---- at Clermont, France, large, xxxi, 191.

_Haldeman, S. S._, on the Melanians of Lamarck, xli, 21; xlii, 216. ----, notice of the zoological writings of the late _C. S. Rafinesque_, xlii, 280. ----, species of mollusca common to Europe and America, xlvii, 412.

_Hale, M._, geological notice of Troy, iii, 72.

_Hall, F._, notice of, xlvii, 139. ----, notes on a tour in France, Italy and Elba, xxxii, 74. ----, on some minerals from Palestine, ix, 337. ----, notice of oriental minerals, xxxiii, 249. ----, ores of iron and manganese in Vermont, iii, 57. ----, waterfall, in the Green Mts., and an excavation in the rocks, vi, 252.

_Hall, James_, on the crinoidea, xlv, 349. ----, fossils of U. States, general remarks on the distribution of, xlv, 157; xlvii, 117. ----, Paradoxides, species of, xxxiii, 139.^f ----, ripple marks and casts of furrows, xlv, 148. ----, sections at Portage, N. Y., xlv, 329. ----, shells, microscopic, from a marl slate, Cincinnati, xlviii, 292.

_Hall, J._, Western States, general account of geology of, xlii, 51.

_Hall, John_, on the staining of wood, and on medical electricity,
iii, 166.

_Hallowell, B._, on the cause of hail in warm weather, xv, 361. ----, blue color of sky, twinkling of stars, and on the deception as to the number in view on a clear evening, xv, 360.

Halos, theory of, _E. S. Snell_, xlix, 73.^f ----, lunar, West Point, March 20, 1831, xx, 299. ----, solar, seen in N. York, at Cazenovia, _J. W. Tyler_, xxi, 189. ----, ----, ibid, in Otsego Co., Feb. 1823, xx, 297. ----, ----, ibid, at Kingston, _R. H. Bonnycastle_, xxx, 136. ----, ----, ibid, at West Point, _A. C. Twining_, xxxii, 229. ----, ----, ibid, New Lebanon, _T. Kendall_, vii, 337.^f ----, ----, seen in Kentucky, August, 1825, xi, 325.^f ----, ----, seen in Rhode Island, September, 1816, xi, 328.^f ----, ----, seen in Tennessee, at Jackson, x, 368.^f

Hambato, S. America, account of, xxiv, 382.

_Hamilton, J._, on terrestrial magnetism, xxxvii, 100.

_Hamilton, M._, earthquakes of S. America, xli, 57.

Hammer, new mineralogical, _E. Hitchcock_, vii, 175.^f

_Hansteen's_ journey in Siberia, notice of, xvii, 392.

_Harden, J. M. B._, formula for ascertaining the weight and volume in
a mixture of two bodies, xxxvii, 289.

_Hare, C._, perchloric ether, xl, 50; xlii, 63. ----, on the destructive distillation of the sulphate of etherine, xxxvi, 77. ----, reaction of sulphuric acid with the essential oil of hemlock, xxxvii, 246.

_Hare, R._, acids and salts, remarks on the nature of, xxvii, 63, 67. ----, ----, classes of, xxvii, 69. ----, air pump of a new construction, xxxiii, 237.^f ----, alkanet, as a substitute for litmus, v, 348. ----, ammonia, nitrate, on the preparing of pure, v, 348. ----, atoms, on the views of _Faraday_, respecting, xlviii, 247. ----, amphide salts, on the existence of radicals in, xlv, 52, 247. ----, barium, strontium and calcium, extrication of, xxxvii, 267; xxxviii, 115; xxxix, 362; xl, 293.^f ----, blasting rocks, by galvanic ignition, xxi, 139; xxvi, 352.^f; xxxviii, 188. ----, blowpipe, improved alcohol, vii, 110.^f ----, ----, hydrostatic, xi, 135.^f ----, ----, strictures on a publication entitled Clark's gas blowpipe, ii, 281.^f ----, ----, oxy-hydrogen, fusion of a large amount of platina with, xxxiii, 195; xxxv, 328. ----, boron, process for evolving, xxii, 189; xxiv, 249.^f ----, calorimotor, i, 413.^f; v, 94. ----, ----, for igniting platina in the galvano-ignition apparatus, xxxii, 284.^f ----, carbon, on the fusion of, in reply to _L. Vanuxem_, viii, 288; x, 111. ----, ----, experiments on the fusion of, x, 118. ----, ----, ----, remarks on, xxxviii, 190. ----, carbonic acid, apparatus for exhibiting some of the properties of, xiv, 358.^f ----, carbonic oxide, apparatus for separating from carbonic acid, xxiv, 252.^f ----, chemical nomenclature, xxvii, 63; xxxii, 259. ----, ibid, in a letter to _Berzelius_, xlix, 249. ----, Chemistry, compendium of, noticed, xx, 95. ----, chlorine, explosive reaction of hydrogen with, under the sun's rays, xxix, 243.^f ----, ----, apparatus for combustion of metals in, xiv, 354.^f ----, chlorohydric acid, preparation of, from the muriatic acid of commerce, xxxix, 371. ----, cold, apparatus for producing ebullition by, xxxiii, 248.^f ----, collapse of a reservoir, xxxiii, 242.^f ----, cryophorus, improved, xxxiii, 244.^f ----, cyanogen, analysis of, xv, 271.^f ----, deflagrator, galvanic, iv, 201; v, 94.^f ----, ----, ----, improved forms of, and powers, vii, 347^f; xl, 48. ----, deflagrating carburets, phosphurets, &c., in vacuo, mode of, xl, 303.^f ----, De Luc's column, on the construction of, xxv, 136.^f ----, on electricity, vii, 103.^f ----, ----, on some inferences from the phenomena of the spark, in _Thomson's_ work on heat and electricity, xxxii, 278. ----, ----, on the causes of the diversity in the length of sparks erroneously distinguished by the terms positive and negative, xxxii, 275.^f ----, electrical brush, xxxii, 277.^f ----, electric induction, and letters to _Faraday_ on, xxxviii, 1; xli, 1. ----, ---- ----, _M. Faraday_ in reply to, xxxix, 108; xlii, 291. ----, electrical machine, plate, vii, 108^f; (large) xxxii, 272.^f ----, ---- ----, on the error that they must communicate with the earth, xxiv, 253. ----, electrometer, single leaf, vii, 351^f; viii, 99; xxv, 136.^f ----, ----, modification of the single leaf, xxv, 136.^f ----, electrometer, use of, as an electric discriminator, xxv, 136. ----, electro-magnetic and galvanic experiments, viii, 145. ----, ether, hypo-nitro-acetic, xxxv, 329. ----, ----, nitrous, new process for, ii, 326.^f ----, ----, nitric, process for, xxxiii, 241.^f ----, ----, sulphurous, xxxi, 275. ----, etherine, sulphate of, xxxi, 275. ----, eudiometer, a new, ii, 312^f; x, 67^f; xii, 36^f; xxxvii, 383. ----, ----, barometer gage, xxxii, 280.^f ----, ----, subsidiary, xv, 271.^f ----, eudiometry by means of nitric oxide, xv, 260.^f ----, freezing water by aid of sulphuric acid, apparatus for, xxvii, 132.^f ----, fulminating powder, consisting of cyanogen and calcium, process for, xxxvii, 268. ----, ----, silver, injury to, from the explosion of, xxii, 185. ----, galvanic apparatus, new modifications of, iii, 105.^f ----, ----, ignition of gunpowder, xxxvii, 269. ----, galvano-ignition apparatus, xxxii, 282. ----, ----, ibid, see above, under _blasting_. ----, galvanism, new theory of, i, 413.^f ----, ----, series, new, combining the advantages of the trough and deflagrator, xxxii, 265.^f ----, ----, new rotatory multiplier, xxxviii, 339.^f ----, apparatus for regulating the supply of gas by its absorption, xiii, 2.^f ----, gases, a mode of obtaining the specific gravity of, xvi, 293, 295.^f ----, gaseous mixtures, analysis of, xv, 279, 283. ----, gasometers, mode of suspending, iv, 312.^f ----, glass, method of dividing by friction, xiii, 7.^f ----, heat, on the cause of, iv, 142. ----, ----, capacities for, apparatus for illustrating, xiii, 6.^f ----, ----, ----, apparatus for showing an increase of, in air with relaxed pressure, xiii, 5.^f ----, ----, reply to _D. Olmsted_, on the materiality of, xii, 50, 366; xiii, 8. ----, liquids, apparatus for transferring or decanting, xxvi, 358.^f ----, hydrometers, xi, 115. ----, hydrostatic blowpipe, xi, 135.^f ----, laboratory of, xix, 26.^f ----, laudanum, xii, 291. ----, light, means of producing, ii, 172. ----, lightning rods, xiii, 322. ----, litrameter, xi, 133.^f ----, meconic acid, mode of obtaining, xii, 293. ----, matter is heavy as demonstrated by _W. Whewell_, reply to, xiii, 260. ----, nitrogen, apparatus for obtaining, from the atmosphere, xiv, 356^f; xxviii, 263.^f ----, nitrous oxide, properties of, xvi, 298. ----, ----, ----, method of obtaining, xvi, 295, 297.^f ----, palm-glass, cold produced by, xiii, 4.^f ----, olefiant gas, on the analysis of, xv, 270. ----, opium, mode of detecting minute quantities of, xii, 290. ----, platina, on the fusion of, xxxiii, 195; xxxv, 328. ----, pneumatic cistern, xiv, 200^f; xxxiii, 246.^f ----, potassium, improved process for, xxxviii, 338. ----, phosphorus, combustion of, in nitrous oxide, xxxii, 290.^f ----, prussic acid, apparatus for the evolution of, xxix, 244.^f ----, sassarubrin, a resin, xxxi, 285. ----, silicon, mode of obtaining, xxii, 189; xl, 28. ----, ----, apparatus for evolving from fluo-silicic acid, xxiv, 247.^f ----, silver, nitrate of, preparation of pure, v, 348. ----, on specific gravities, xi, 121.^f ----, storms of the Atlantic coast, v, 352. ----, ----, on Redfield's theory of, xlii, 140; xliii, 122. ----, ----, on Dové's essay on, xliv, 137; xlviii, 220. ----, ----, replies of _W. C. Redfield_ to, xlii, 299; xliii, 250^f; xliv, 384. ----, ----, or tornado in R. Island, Aug. 1838, and others, xxxviii, 73. ----, ----, tornado and water spout, causes of, xxxii, 153.^f ----, sulphurous acid, reaction of the essential oils with, xxxi, 281. ----, syphons, improved, xxiv, 317.^f ----, valve cock, xxiv, 251.^f ----, volumescope, description of, xv, 275^f; xxviii, 264.^f ----, ----, application of, xv, 278.^f ----, volumeter, xii, 38.^f ----, water, apparatus for decomposition and recomposition of, xxxviii, 336.^f ----, Woulfe's apparatus, a substitute for, i, 410^f; xiii, 1.^f

_Harlan, R._, Arvicola ferrugineus, x, 285. ----, Batracian reptiles, new, with observations on the larvæ of frogs, x, 53. ----, bones from near the mouth of the Mississippi, xiv, 186. ----, lizards, orbicular, notice of, xxxi, 383. ----, mammalia, fossil, from the Brunswick canal, Georgia, xliii, 141.^f ----, mouse, new species of, xxxi, 385. ----, Orycterotherium, xlii, 392; xliv, 69.^f ----, Salamandra pennsylvanica, x, 286. ----, tortoise, freshwater, xxxi, 382.^f ----, Medical and Physical Researches of, noticed, xxx, 188. ----, new fossil mammalia of, _R. Owen_ on, xliv, 341. ----, ibid, in reply to R. Owen, xlv, 208.

_Harris, W. S._, utility of lightning conductors on ships, xxi, 347. ----, meteorological observations at Plymouth, xliii, 369.

_Harris, T. W._, North American Sphinges, xxxvi, 282. ----, Report on Insects injurious to vegetation, noticed, xliii, 386.

Hariz, Europe, notices of, _T. G. Clemson_, xix, 105.^f

_Haskins, R. W._, examination of the theory of a resisting medium in space, xxxiii, 1. ----, Astronomy of, noticed, xli, 389.

_Hassler, F. R._, methods and plans of, in the survey of the coast
of the United States, xvi, 225.
----, repeating theodolite, description of, _C. Wilkes_, U.S.N.,
xvi, 252.^f

Hats, manufacture of, x, 193.

Hawaii, see _Sandwich Islands_.

_Hawkins'_ Saurian remains purchased, xxix, 367.

Hay, siliceous glass from burning, xix, 395; xxiv, 174.

_Hayden, C. B._, analysis of the Scott spring, Va., xliv, 409. ----, on the ice mountain of Hampshire Co., Va., xlv, 78.^f ----, on the rock-salt and salines of the Holston, Va., xliv, 173.

_Hayden, H. H._, Geological Essays of, noticed, iii, 47. ----, on the Bare Hills, near Baltimore, xxiv, 349.^f ----, notices of the geology of the country near Bedford springs, Pennsylvania, xix, 97.

Haydenite, description of, xlvi, 379.^f ----, analysis, by _B. Silliman, Jr._, xlvi, 380.

_Hayes, A. A._, chlorine, carbon and hydrogen, two new compounds of, xxii, 141. ----, chromium, combinations of, xiv, 136. ----, columbic acid, investigations on, xlvi, 166. ----, dewpoint, remarks on, xviii, 63. ----, hygrometer, portable, xvii, 351.^f ----, meteoric iron, Alabama, xlviii, 147. ----, microlite and pyrochlore, identity of, xliii, 33; xlvi, 158. ----, tin, action of metallic, on the muriate of, xxxviii, 408. ----, Tarapaca saline minerals, nitrates, iodates, borates, xxxviii, 410.

_Hayes, G. E._, geology of western New York, with remarks on the causes
of its topographical features, xxxi, 241; xxxv, 86.^f

_Hayes, J. L._, on the geographical distribution and phenomena of volcanoes, xlvii, 127. ----, influence of icebergs upon drift, xlv, 316, 326.

_Haymond, R._, on remains of Megatherium and Mastodon, xlvi, 294.

_Hazard, R. G._, method of describing a hyperbola, xxi, 314.^f

Heat, absorption of, _Nobili_ and _Melloni_ on, xxiii, 188. ----, ----, apparatus for illustrating, _A. D. Bache_, xxviii, 320.^f ----, animal, vii, 200. ----, ----, influence of the nerves on, x, 390. ----, ----, _Nobili_ and _Melloni's_ experiments on insects, &c., xxiii, 185. ---- of different animals, x, 382. ----, capacity of gas for, iv, 372. ----, ---- of air, apparatus for illustrating, _R. Hare_, xiii, 5^f, 6.^f ----, cause of, _R. Hare_, iv, 142. ----, of combination, law of, _Andrews_, xlvi, 397. ----, conduction of, notice of _Despretz's_ investigations, v, 378. ----, ----, laws of, _Kelland_, xlii, 161. ----, ----, by water, _C. Dewey_, xxviii, 151. ----, connection of, with electricity and magnetism, _J. F. Dana_, vi, 163. ----, diathermancy of rock salt, _Melloni_, xl, 313. ----, of the earth, iv, 372. ----, ----, at different depths, xxiii, 14; xxxvii, 357. ----, ----, rate of increase downward, _A. De la Rive_ and _F. Marcet_, xxvii, 397. ----, ----, ibid, _L. Cordier_, xv, 116. ----, ----, detailed analysis of, _L. Cordier's_ essay upon, xv, 109. ----, ----, criticism of Poisson's view, _J. D. Forbes_, xl, 319. ----, ----, _G. Bischof_, xxxvii, 52. ----, ----, _W. Whewell_, xxix, 349. ----, ----, and of space, _Baron Fourier_, xxxii, 1. ----, ----, effects of internal and solar, on the temperature of the globe, xxxii, 1. ----, ----, in mines, _R. W. Fox_, xxxiv, 46. ----, effect of, on magnetism, _C. Matteucci_, xxii, 361. ----, ---- of long continued, on minerals, experiment to determine, _W. V. Harcourt_, xxix, 357. ----, ---- of, on some minerals or rocks in New York, _L. C. Beck_, xlv, 143; xlvi, 333. ----, moon's, xl, 315. ----, _Nobili_ and _Melloni's_ experiments on, xxiii, 185; xl, 313. ----, polarization of, xxviii, 366, 397. ----, polarized, and on his claims to the discovery of, _J. D. Forbes_, xl, 317. ----, production of, and of light, _J. L. Sullivan_, i, 91. ----, ----, from combustion, x, 382. ----, ----, by compression of glass, xx, 180. ----, ----, by friction, cause of, _J. T. Watson_, viii, 276. ----, ----, by combination with oxygen, different for different substances, and amount of, xv, 392. ----, radiated, influence of color on, _A. D. Bache_, xxx, 16; xxxiv, 39. ----, ----, transmission and refraction of, _Melloni_, xxvii, 228; xl, 313. ----, ---- ----, _J. D. Forbes_, xl, 315; refraction of, xxviii, 366. ----, radiation of, apparatus for illustrating, _A. D. Bache_, xxviii, 320.^f ----, ----, _Powell's_ report on, noticed, xl, 313. ----, of space, _W. Whewell_, xxix, 349. ----, ----, _Baron Fourier_, xxxii, 1. ----, specific, of gases, some of the laws of, xiii, 394. ----, ----, of certain solids, method of determining and calculating, _W. R. Johnson_, xxvii, 267. ----, sun's, _W. Whewell_, xxix, 349. ----, general views on, x, 78. ---- at the bottom of the ocean not necessarily diffused by upward currents, _W. C. Redfield_, xlv, 138. ---- and light, _S. Morey_, ii, 118, 122. ---- and vapor, inquiries respecting, _W. R. Johnson_, xxi, 304. ----, see further under _Meteorology_ and _Temperature_.

Heated waters, an agent in producing metamorphic changes, _J. D. Dana_,
xlv, 104.

Heating houses by furnaces below, some important precautions, xxxiv, 84.

Heavy spar, of Berlin, Ct., analysis of, _G. T. Bowen_, iv, 325. ----, localities of, in Canada, viii, 72. ----, ----, in Carolina, iii, 4; v, 257. ----, ----, in Connecticut, i, 240; ii, 373; iv, 325; v, 40, 42.^f, 254; vi, 211. ----, ----, in Massachusetts, i, 115; vi, 211. ----, ----, in New Jersey, xxxvi, 103. ----, ----, in New York, i, 237; ii, 173, 368; v, 28; vii, 56; viii, 249; xxv, 346; xxvii, 364; xxviii, 175. ----, ----, in Tennessee, i, 63. ----, ----, in Virginia, i, 63. ----, ----, in Sicily, viii, 205.

Hebrew words, orthography of, _J. W. Gibbs_, xxiv, 87.

_Heckewelder, John_, labors of, xxxi, 64, 66.

Height, on the measurement of, by boiling water, xxxvii, 19. ----, mean, of the continents above the sea, xlix, 397. ---- of Lake Erie and various places in western New York, _C. Dewey_, xxxiii, 122. ---- of places in Ohio, Michigan, Pennsylvania and New York, _C. Whittlesey_, xlv, 12. ---- ---- in Wisconsin, _I. A. Lapham_, xlvi, 258.

Hematite, see _Iron Ore_.

Hemlock, reaction of sulphuric with the essential oil of, xxxvii, 246.

Hemming's safety tube, _J. W. Webster_, xxxvii, 104.

Hemorrhage, remedy for, v, 409.

Hemp, Manilla, account of, xli, 200.^f

_Hemprich_ and _Ehrenberg_, notice of journey by, in Northern Africa,
vii, 195.

_Henry, J._, electro-dynamic induction, xxxviii, 209^f; xli, 117.^f ----, large, xix, 408.^f ----, electro-magnetic experiments, by, xxii, 403. ----, ---- apparatus, application of galvanic multiplier to, xix, 400.^f ----, ---- ----, remarks in confirmation of, _J. W. Webster_ and _R. Hare_, xx, 143. ----, magnetism, production of currents of electricity and sparks from, xxii, 403. ----, magnetic attraction and repulsion, reciprocating motion of, xx, 340.^f ----, ---- needle, disturbance during an Aurora, xxii, 143. ----, soap-bubble, experiments with, on molecular attraction, xlviii, 215. ----, spark from a long conductor in a galvanic battery, xxviii, 327. ----, spiral conductor, action of, xxviii, 329.

_Henry, W._, on the disinfecting powers of increased temperatures, xxi, 392; xxii, 111.^f ----, philosophical character of Priestley, xxiv, 28.

_Hentz, N. M._, on North American spiders, xxi, 99.^f ----, a new sub-genus of spiders, xli, 116.^f

Hepatic blende, xlii, 387.

Herbaria, European, notices of, xl, 1.

Herculaneum manuscripts, ii, 340.