Part 12

Elevation, _Hopkins'_ theoretical views respecting the geological phenomena of, xxxi, 365. ----, _G. E. Hayes_, on the effects of the ocean in western New York, during, xxxv, 86. ----, _W. W. Mather_ on causes of, in rise of sedimentary rocks of United States, xlix, 284. ----, _H. D._ and _W. B. Rogers_, theory of, xliv, 360. ---- of Ceylon, evidence of, vi, 194. ---- of the coast of Chili, xxviii, 236; xxx, 110. ---- ---- ---- and South America, _C. Darwin_, xxxiii, 100. ---- of the banks of the Mississippi, 1811, _F. C. Usher_, xxxi, 294.^f ---- of Sweden, _C. Lyell_, xxviii, 72, 387; xxix, 363. ---- of the Scandinavian coast, _L. Beamish_, xlvii, 184. ---- of Dominica, St. Christopher's, St. Eustatia and Saba, West Indies, indicated by raised coral reefs, iv, 218.

Elizabeth Islands, vii, 240.^f

Elk of Ireland, iv, 246. ----, fossil bones of, in North Carolina, xxvii, 170.

_Ellet, W. H._, on the compounds of cyanogen, xviii, 329.

Ellipses, mode of drawing, _S. De Witt_, xxiv, 369.^f ----, on the rectification of, _C. Wilder_, xviii, 38.^f

Elliptic motion, _T. Strong_, xxx, 248.

Elm-tree moth, parasite of the eggs of, xxxviii, 385. ----, destruction of the eggs of, by a parasite, _E. C. Herrick_, xl, 211.

Embalming, remarks on the mode of, xii, 183. ----, _J. N. Gannal's_ new process, xl, 194.

Emerald in Africa, ii, 354.

_Emerson, G. B._, biographical notice of A. P. De Candolle, xlii, 217.

Emery of Saxony, xxiv, 377.

_Emmet, J. P._, on formic acid, xxxii, 140. ----, ammoniacal salts, solvent and oxydating powers of, xviii, 255. ----, iodide of potassium a test for arsenic, xviii, 58. ----, electro-magnetism and thermo-electricity, xxvi, 311. ----, ----, new discoveries in, xxiv, 78.^f ----, ----, cause of currents in, xxvi, 23.^f ----, solidification of raw gypsum, xxiii, 209. ----, a mode of producing sparks and galvanic currents from the horse-shoe magnet, xxiv, 78.^f

Emmonite, supposed new mineral, _T. Thomson_, xxxi, 171.

_Emmons, E._, birds of spring, time of appearance in Williamstown, Mass., 1831-33, xxvi, 208. ----, circulation in vegetables, xxvi, 99. ----, granitic veins and beds of Chester, Mass., viii, 250. ----, Grevilleanum serratum, a new species of moss, xi, 183.^f ----, metamorphic changes by artificial heat, in sandstone, xlv, 146. ----, rainmarks in the Potsdam sandstone, xlv, 316. ----, strontianite in the U. States, xxvii, 182.

Enamel for porcelain, v, 189.

Enamelled cast iron vessels in Bohemia, xlix, 400.

Encroachment of the sea, near New York, _W. W. Mather_, xxxvi, 16.

Endogenites, vii, 179.

Enfield's Natural Philosophy, review of, iii, 125.

England, population of, xxiv, 211.

_Engelmann, G._, Braun's monography of N. American Equiseta, with additions, xlvi, 81. ----, Braun's Charæ of N. America, xlvi, 92. ----, catalogue of a collection of plants in Illinois and Missouri, xlvi, 94. ----, monograph of the N. American Cuscutineæ, xliii, 333^f; xlv, 73. ----, a mode of cupellation, xlii, 394.

Engine, explosive, of _S. Morey_, account of, xi, 104. ----, steam, see _Steam engine_.

English lexicography, contributions to, _J. W. Gibbs_, xxxiii, 324; xli, 28, 32; xlv, 96.

Engraving, a mode of enlarging, ii, 342. ----, a mode of biting-in, on steel, x, 194. ----, in _taille douce_, iv, 192. ---- on steel, _Perkins's_ invention, iii, 353.

Epicycloid, on the, _E. F. Johnson_, xxi, 280.^f

Epidemics, in Paris, during past years, xxv, 197.

Epidote of Franconia, N. H., account of, _C. U. Shepard_, xviii, 129.^f ----, crystals from Haddam, Ct., xlvi, 380.^f ----, localities of, in Canada, viii, 62. ----, ----, in N. Carolina, v, 262. ----, ----, in Connecticut, i, 354; ii, 240; vi, 223; viii, 258; xii, 170; xviii, 361. ----, ----, in Delaware, xiv, 11. ----, ----, Massachusetts, i, 114; iii, 364; vi, 223; vii, 253; viii, 235; ix, 43. ----, ----, New Hampshire, ii, 241; vi, 245; viii, 235; xviii, 129. ----, ----, in New Jersey, v, 243. ----, ----, in New York, ii, 241; iv, 47; vii, 58; ix, 41. ----, ----, in Pennsylvania, viii, 238; xiv, 6. ----, ----, in Rhode Island, iv, 285; x, 10. ----, ----, in Vermont, vii, 58; xvii, 354.

Epistilbite and Heulandite, identity of, xiii, 185.

Equations, differential of the second order, integration of, _T. Strong_, xlii, 273. ---- of the fourth degree, on the resolution of, xviii, 276. ---- of the third and fourth degree, method of resolving, _A. C. Twining_, ix, 86.

Equilibrium between living and dead forces, condition of, _R. H. Fauntleroy_, xlvii, 241.^f

Equinoxes, precession of, vii, 323^f; viii, 132, 139.^f

Equiseta, N. American, _A. Braun's_ monograph, with additions by _G. Engelmann_, xlvi, 81.

Equisetum arvense, xlvi, 83. ---- boreale, xlvi, 90. ---- eburneum, xlvi, 84. ---- giganteum, xlvi, 91. ---- hyemale, xlvi, 89. ---- lævigatum, xlvi, 87. ---- limosum, xlvi, 86. ---- palustre, xlvi, 85. ---- pratense, xlvi, 85. ---- robustum, xlvi, 88. ---- scirpoides, xlvi, 91. ---- sylvaticum, xlvi, 84. ---- variegatum, xlvi, 90.

Equivalents, chemical, _Wollaston's_ scale of, xvi, 371. ----, ----, ----, improved, _L. C. Beck_ and _J. Henry_, xiv, 202. ----, ----, circular scale of, _J. Finch_, xviii, 196.

Eremite, a new mineral, _C. U. Shepard_, xxxii, 341.^f ----, crystallographic examination of, _J. D. Dana_, xxxiii, 70.^f ----, identical with monazite, _J. D. Dana_, xlv, 402.^f

Ergot of rye, _W. Tully, M. D._, ii, 45. ----, remarks on, xii, 398. ----, on the origin of, _M. Field_, ix, 359.

Erie canal, tolls on, x, 398.

Erratic blocks, over the northern parts of England, _Prof. Phillips_, xxxi, 360. ---- ----, ibid, _R. I. Murchison_, xxxi, 375. ---- ---- and glaciers in Switzerland, _Agassiz_, xli, 59, 190. ---- ---- of the North of Germany, xxviii, 389. ---- ----, large, in Invernesshire, vi, 158. ---- ---- and diluvial scratches, in the U. States, xli, 174. ---- ---- in New England, their positions attributed to a retiring ocean, ix, 28. ---- ---- in Rhode Island, _C. T. Jackson_, xl, 184. ---- ---- in Maine, _C. T. Jackson_, xxxvi, 152. ---- ---- in the Connecticut valley, vi, 85. ---- ---- in western New York, xxxvi, 39. ---- ---- in New York, about the sources of the Hudson and to the southward, xxxiii, 304, 315. ---- ---- on Long Island, xxxvi, 20. ---- ---- of Labrador feldspar, near Pompton, New Jersey, v, 241. ---- ---- of Ohio, _D._ and _I. A. Lapham_, xxii, 300. ---- ----, in the valley of the Muskingum, xxix, 11. ---- ---- in Illinois, xxxiv, 141. ---- ---- in Indiana, _J. T. Plummer_, xliv, 296^f, 303. ---- ---- of gneiss and granite on the Côteau des Prairies, _G. Catlin_, xxxviii, 142. ---- ---- of the Canadian lakes and valley of the St. Lawrence, _C. Lyell_, xlvi, 314. ---- ---- the origin of, remarks on, _P. Dobson_, x, 217. ---- ---- _Murchison's_ citation of _Dobson's_ views on, xliii, 200. ---- ---- transported by ice, in the polar current, _W. C. Redfield_, xxxii, 351. ---- ---- on the supposed transportation of, _J. E. DeKay_, xiii, 348. ---- ---- buoyancy of, at great depths, xxviii, 111. ---- ---- gravel, &c., remarks on, _Sedgwick_, xxxiii, 287. ---- ---- theory of, _B. Struder_, xxxvi, 325. ---- glacial theory of _Agassiz_, xlii, 352.^f ---- see farther under _Drift_ and _Scratches_.

Erythronium, supposed new metal, xx, 386.

Esophagotomy, iv, 383.

_Espy, J. P._, views on storms, xxxix, 120; xl, 327. ----, ---- ----, notice of, by _A. D. Bache_, xxxv, 280. ----, on the causes of the daily fluctuations of the barometer, xli, 42. ----, meteorological enterprise of, xliv, 212.

Esquimaux Indians, remarks on, xvi, 145.

Essential oils, reaction of, with sulphurous acid, _R. Hare_, xxxi, 281.

Essex county, (N. Y.) mountains of, and the sources of the Hudson, _W. C. Redfield_, xxxiii, 301.^f

Etching glass with fluor spar, vi, 354.^f

Etna, ascent of, _S. L. Johnson_, xxvi, 1. ----, crater of, xxvi, 7. ----, earthquakes in 1823, ix, 216. ----, observations on, _E. de Beaumont_, xxxi, 168. ----, luminous flames at, xxxi, 169. ----, geological structure of, _F. Ferrara_, viii, 201.

Ether in space, idea of, when introduced, xxxiii, 1. ---- ----, resistance to motion of heavenly bodies, xvii, 389. ---- ----, examination of the theory of, _R. W. Haskins_, xxxiii, 1. ----, boracic, xlviii, 189. ----, chloric, new mode of obtaining, _S. Guthrie_, xxi, 64. ----, hydriodic, _M. Serullas_, xviii, 161. ----, hyponitrous, _R. Hare_, xxxv, 329. ----, nitrous, new process for, _R. Hare_, ii, 326. ----, nitric, process for, _R. Hare_, xxxiii, 241.^f ----, œnanthic, xxxii, 381. ----, perchloric, _C. Hare_ and _M. H. Boyé_, xl, 50, 382; xlii, 63. ----, silicic, xlix, 192. ----, sulpho-cyanic, xvii, 377. ----, sulphuric, on the manufacture of, xxii, 199. ----, sulphurous, _R. Hare_, xxxi, 275. ----, ----, and sulphate of etherine, _R. Hare_, xxxi, 275. ----, vaporization of, vi, 396. ----, action of, on sulphate of indigo, xxiv, 371. ----, odor of wines due to a peculiar, xxxii, 381 (œnanthic ether.)

Ethers of the vegetable acids, method of preparing, xlvii, 197. ----, and benzoic compounds, formulas for, _Wöhler_ and _Liebig_, xxvi, 285.

Etherine, sulphate of, _R. Hare_, xxxi, 275. ----, sulphate of, on the destructive distillation of, _C. Hare_, xxxvi, 76.

Ethule, perchlorate of the oxide of, _C. Hare_ and _M. H. Boyé_, xlii, 63.

Euchlorine, preparation of, vi, 164.

Eudiometer, improved, _R. Hare_, ii, 312^f; x, 67^f; xii, 36^f; xxxvii, 383. ----, barometer gauge, _R. Hare_, xxxii, 280.^f ----, subsidiary, _R. Hare_, xv, 271.^f

Eudiometry, theory of action of nitrous gas in, _J. F. Dana_, vii, 338. ----, new mode, with nitric oxyd, and apparatus for, _R. Hare_, xv, 262-271.^f

Eupatorium huaco, xxiv, 279.

Europe, northern, rock formations of, xvii, 16. ----, physical geography of, _G. F. Schouw_, xxi, 127. ----, education in, see _Education_.

Eupyrchroite of Emmons, a phosphate of lime, _L. C. Beck_, xl, 77; xlvi, 32.

Evaporation, mode of accelerating, ix, 203. ---- by means of bladders, xv, 392. ---- of ice, xvi, 390. ---- of spirits, iii, 376.

Excavations of basins or pot-holes by water, in the Green Mts., Vt., vi, 252.

Exhilarating gas, effects of, in two cases, v, 194.

_Exley, T._, specific gravities of nitrogen, oxygen, chlorine, vapors of carbon, sulphur, arsenic, phosphorus, xxxv, 298.

Exogenites, vii, 179.

Exogyra, see ZOOLOGY, _Mollusca_.

Expansion of solid bodies, instrument for, _W. W. Mather_, xxx, 324.^f

Expedition, exploring, under L. Cass, ii, 178. ----, ----, U. States, under Lieut. Wilkes, U. S. N., officers of, xxxv, 192. ----, ----, ----, progress of, xxxvi, 195; xxxvii, 189, 398; xxxviii, 387; xxxix, 193. ----, ----, ----, discoveries of, in the Antarctic regions, xl, 394; xlix, 150. ----, ----, ----, return of, xliii, 208. ----, ----, ----, course and abstract of results, xliv, 393. ----, ----, ----, account of, xlix, 149. ----, ----, Antarctic, of the Chanticleer, notice of, xviii, 188. ----, ----, British Antarctic, under Ross, proposed, xxxvii, 397; xlii, 153; sailed, xxxviii, 204. ----, ----, French, to the Antarctic regions, xxxix, 201.

Explorations, polar, account of, xvi, 124. ----, ----, French, of Capt. Freycenet, iv, 391. ----, ----, ----, of Capt. D'Urville, xxxiii, 206. ----, ----, ----, ibid, to Antarctic regions, xxxix, 201. ----, ----, ----, of the Bonite, xxxiv, 219.

Exploring expedition, see _Expedition_.

Explosion, singular, iv, 400. ---- of hydrogen and oxygen, with remarks on Hemming's safety tube, _J. W. Webster_, xxxvii, 104. ----, from the action of nitric acid on phosphorus, xvi, 366. ----, submarine, ii, 95.

Explosive engine, by _S. Morey_, xi, 104.

Eye, mode of accommodation of, to different distances, _W. C. Wallace_, xxvii, 216.^f ----, mode of exhibiting the blood vessels of, xxi, 166. ----, muscle attached to the lens of, _W. C. Wallace_, xxxv, 291; --remarks on, _D. Brewster_, xxxv, 291. ----, cause of _muscæ volitantes_ in, _D. Brewster_, xl, 333. ----, remarks on the retina, _W. C. Wallace_, xxviii, 278. ----, sensibility of the retina, explanation of facts in natural magic, xxxiii, 258. ----, on cataract or disease of, _D. Brewster_, xxxi, 368. ---- of fishes, discovery of a muscle in, _W. C. Wallace_, xxvi, 394. ---- of the Halibut, dissection of, _W. C. Wallace_, xxvi, 393.^f ---- of the shark, vitreous humor of, _J. Herschel_, xxxv, 293. ---- of the streaked bass, dissection of, _W. C. Wallace_, xxvii, 216.^f ---- of different birds and reptiles, sclerotic bones of, xxxiii, 289. ---- infirmaries in U. States, ix, 399.

F.

Fac similes of writing taken by means of fusible metal, v, 186.

Fair at Leipsic, iv, 392; vii, 381. ----, in Russia, iv, 392.

Falls of the Cuyahoga, xxxi, 45.^f ----, on the Genesee river, xviii, 209.^f ----, Niagara and its vicinity, xi, 213.^f ----, ----, on the retrograde movement of, _H. D. Rogers_, xxvii, 326.^f ----, the Tockoa and Tallulah, in Georgia, notice of, _A. Foster_, xiv, 209. ----, on White River, Green Mountains, Vt., vi, 252.

_Faraday, M._, deflagrator, improved, xxxii, 170. ----, electric induction, in reply to _R. Hare_, xxxix, 108; xlii, 291. ----, ---- ----, reply to, of _R. Hare_, xli, 1. ----, gases, condensation of, vii, 352. ----, ----, liquefaction and solidification of, xlix, 373. ----, views of, on the nature of atoms, objected to, _R. Hare_, xlviii, 247. ----, vaporization, limits to, xxi, 151.

_Farey, J._, on musical intervals, ii, 65.

Fasciculite, _E. Hitchcock_, vi, 226.^f

Fata Morgana at Gibraltar, xxix, 215.^f

_Fauntleroy, R. H._, condition of equilibrium between living and dead forces, xlvii, 241.^f

_Faust, E. D._, on the detection of adulterations of various substances, xix, 70.

Favosites, see ZOOLOGY, _Radiata_.

Feathers, to restore damaged, xxi, 372.

_Featherstonhaugh, G. W._, geological report on part of the country west of the Mississippi, notice of, xxviii, 379; xxxii, 185.

Febrifuge, new, xxiv, 375.

Fedia radiata, iv, 57. ---- umbilicata, xlii, 50.

Feed for cattle, xxii, 202. ---- ----, of beets, xxii, 201.

Fees for admission to various foreign societies, xx, 165.

Feldspar from Bytown, L. C., analysis of, _T. Thomson_, xxxi, 173. ----, and serpentine, containing titanium, xii, 187. ----, artificial, xxviii, 396. ----, localities of, in Canada, viii, 65. ----, ----, in Connecticut, i, 353; vi, 221; vii, 253. ----, ----, in Delaware, ix, 246. ----, ----, in Massachusetts, i, 113; vii, 251, 252; xxxv, 192. ----, ----, in New Hampshire, xvii, 355. ----, ----, in New Jersey, v, 246. ----, ----, in New York, iv, 37, 47; xix, 227; xxv, 348. ----, ----, in Pennsylvania, x, 220; xiv, 13. ----, green, in Massachusetts, vii, 251, 252; xxxv, 192. ----, iridescent, in Pennsylvania, xiv, 13.

_Fellenberg's, M. de_, colony of little Robinsons, xiii, 165.

Fence, thorn, x, 167.

_Fenn, H. N._, on the manufacture of glass, xvi, 112.^f

Fermentation, acetic, process for hastening, xxii, 195.

Ferns, on the vascular system of, _J. W. Bailey_, xxxv, 113.^f ---- and mosses of the United States, synoptical table of, _L. C. Beck_, xv, 287. ----, see _Botany_.

Ferro-cyanate (per), of iron, or prussian blue, xviii, 332. ---- ----, see _Prussian blue_.

Ferro-cyanate of potash, xviii, 331.

Ferro-cyanic acid, xviii, 330.

Fetid odor of limestones, cause of, _L. C. Beck_, xlv, 335.

_Feuchtwanger, L._, remarks on arsenic, xix, 339.^f ----, on the mode of making vinegar, xxxi, 272.^f

Fevers, on remittent and intermittent, _J. McCulloch_, xviii, 338.

Fibrine, albumen and caseine, _Scheerer_ on the isomerism of animal, with vegetable, xliii, 402. ----, butyric acid from, xlviii, 186.

Fibrolite, in Delaware, x, 224.

Ficoidites scabrosus, xxxi, 31.^f

_Field, M._, on the origin of ergot, ix, 359. ----, meteorological registers, xii, 364; xvi, 288; xviii, 366; xx, 261^f; xxii, 298; xxiv, 361. ----, profile mountain, in N. H., xiv, 64.^f

Figures of crystals, on the drawing of, _J. D. Dana_, xxxiii, 30.^f

Filicites, generic characters of, vii, 181.

Filter, _Dumont's_, and prepared charcoal, xxiii, 346.^f

Filtration, xxviii, 150.

_Finch, J._, atomic theory, remarks on, xiv, 24. ----, chemical equivalents, circular scale of, xviii, 196. ----, celtic antiquities of America, vii, 149. ----, forts about Boston, viii, 338. ----, geology of Pennsylvania, Easton, viii, 236.^f ----, ---- ----, vicinity of Westchester, xiv, 15. ----, ---- New York, St. Lawrence Co., xix, 220. ----, ---- ----, tertiary formations of the borders of the Hudson, x, 227. ----, sandstone, new or variegated, of the U. States, x, 209.^f ----, U. States tertiary formations, vii, 31. ----, physical geography, influence of, on the boundaries of nations, xiv, 18; xvi, 99.

Finland, comforts of traveling in, iii, 378.

Fire, Chinese, on the composition of, _J. Cutbush_, vii, 118. ----, Greek, _J. Cutbush_ on, vi, 302. ---- in chimneys, extinguishment of, by sulphur, xix, 186. ----, on protection from, or securing houses against, xxv, 290; xxvi, 286. ----, whirlwinds produced by, xxxvi, 50. ---- arms, manufacture of, by _E. Whitney_, xxi, 237.

Firebricks, made at Bennington, Vt., for the iron furnace, xxxii, 195; xxxiii, 202.

Fire damp, chemical examination of, _E. Turner_, xxxvii, 201.

Firemen, preservation of, against fire by asbestos, xviii, 177; xx, 96.^f

Firestones, used in glass manufactories, notice of, x, 19. ----, localities of, in the U. States, x, 20. ----, ----, in Rhode Island, viii, 232; x, 20; xl, 184.

Fish, double, _S. Churchill_, xxvi, 116.^f ---- of Hudson river, xx, 150. ----, Chinese method of hatching, viii, 381. ----, preserved by sugar, viii, 391. ----, fall of, from the atmosphere in India, _M. Prinsep_, xxxii, 199. ----, the limits of their occurrence in high latitudes, vi, 383. ----, removal from salt to fresh water, xl, 405. ----, see farther under _Zoology_. ----, fossil, remarks on, _R. I. Murchison_, xxxiv, 46. ----, ----, of England and Scotland, xxviii, 75. ----, ----, American, _W. C. Redfield_, xli, 24. ----, ----, ----, identified from fossil teeth, _L. Agassiz_, xxviii, 276. ----, ----, in the Connecticut valley, _E. Hitchccock_, vi, 76.^f ----, ----, ----, at Sunderland, Mass., _E. Hitchcock_, iii, 222, 365. ----, ----, ----, at Middletown, _D. L. H._, xxxiv, 198. ----, ----, ----, at Southbury, xxvii, 354. ----, ----, in New Jersey, _W. C. Redfield_, xxxvi, 186; xliv, 134^f; xlv, 314. ----, ----, ----, and Connecticut, identical, _W. C. Redfield_, xxxvi, 186. ----, ----, ----, in red sandstone, _Prof. Gale_, xxxv, 192. ----, ----, in Pennsylvania, at Blossburg, Holoptychus nobilissimus, xlii, 233. ----, ----, in Virginia, _W. C. Redfield_, xxxiv, 201. ----, ----, see farther under _Zoology_.

Fishes, notice of _L. Agassiz's_ works on, xxviii, 193; xxxiv, 46, 212; xxxix, 390; xlv, 211. ----, abstract of _Agassiz's_ work on fossil, xxx, 33. ----, notice of W. Yarrell's British, xxxvii, 167.

Fish skins, new mode of preserving for museums, xxxvi, 196.

_Fisher, A. M._, on musical temperament, i, 9^f, 176.^f ----, on improvements in the construction of the printing press, and its theory, iii, 311.^f ----, on maxima and minima of two variable quantities, v, 82. ----, review of Enfield's Philosophy, iii, 125. ----, obituary of, v, 367.

_Fisher, Lieut. Col._, discourse by, at Schaffhausen, ix, 368.

Fissures, capillary action of, viii, 377. ----, of the ground by frost, in Deerfield, Mass., _E. Hitchcock_, iii, 286.^f ----, see farther, _Dike_.

Five, the most favorite number of nature, xvi, 172.

Flame, effect of vapor on, _J. F. Dana_, i, 401. ----, theory of, xiii, 179. ---- of lamp, curious effect of a current of air on, xxxii, 88.^f

Flax, the milkweed a substitute for, xxvii, 384.

Flexure of rocks caused by earthquake undulations, _H. D._ and _W. B. Rogers_, xliv, 361; xlv, 345; xlvii, 276.

Flies, shower of, xxii, 375.

_Flint_, on earthquakes in the Mississippi, xv, 366.

Floating Islands, _A. Pettengill_, xii, 122.

Flœrken, on the genus, _C. S. Rafinesque_, i, 373.

Flood in the valley of the Ohio, Feb., 1832, xxiv, 133.

Flora Cestrica, _W. Darlington_, notice of, xii, 177. ---- Græca, _Sibthorp_ and _Smith_, announced, i, 435. ---- Lusitanica, _Link_ and _Hoffmansegg_, i, 435. ---- Neapolitana, _Tenore_, announced, i, 435.

Floral calendar, Massachusetts, at Deerfield, _D. Cooley_, ii, 254. ---- ----, ----, ----, _S. W. Williams_, i, 359. ---- ----, ----, at Plainfield, _J. Porter_, i, 254; iii, 273. ---- ----, Ohio, at Marietta, S. _P. Hildreth_, for 1829, xviii, 368; --for 1840, xl, 347; --for 1842, xliv, 348; --for 1843, xlvi, 278; --for 1844, xlviii, 289; see farther, _Mr. Hildreth's_ meteorological registers for other years, for various miscellaneous notices. ---- ----, in Pennsylvania, _C. S. Rafinesque_, i, 77. ---- ----, in New York, Herkimer Co., for 1826, 1827, _A. W. Bowen_, xvi, 48.

Floridas, agriculture, scenery, geology, &c. of, _J. Pierce_, ix, 119. ----, shell rock of, ix, 123. ----, East, account of, _H. Whiting_, xxxv, 47. ----, ----, alligators of, xxxv, 52. ----, ----, climate, xxxv, 63. ----, ----, coral shores, xxxv, 60. ----, ----, everglades, xxxv, 53. ----, ----, forests with the gray moss, xxxv, 50. ----, ----, Fort Taylor, xxxv, 52. ----, ----, lagoons of the coast, xxxv, 54. ----, ----, mangroves, xxxv, 55. ----, ----, productions of, xxxv, 56. ----, ----, potato of, xxxv, 60. ----, ----, quarries of St. Augustine, xxxv, 61. ----, ----, savannahs, xxxv, 52. ----, ----, soil, xxxv, 57. ----, ----, St. John's river, xxxv, 48. ----, ----, sulphur springs, xxxv, 51.

Flour, potato, used in making bread, xvi, 391. ----, detection of, in wheat, xvii, 173. ---- from leguminous fruits, vii, 189.

Flowers, double, produced by depriving flowers of their anthers, _E. T. Leitner_, xxiii, 45.

_Floyd, J._, hurricane near Calcutta, of April, 1838, xxxvi, 71. Fluidity of the earth's centre, _L. Cordier_, xv, 109, 117. ----, ----, ----, _Fourier_, xxxii, 1.

Fluids, compression of, xxi, 381. ----, revolving motion in, xix, 391. ----, resistance of, _L. R. Gibbes_, xxvii, 135. ----, ----, _A. Bourne_, xxviii, 231. ----, resistance of, _E. W. Blake_, xxix, 274; xxx, 359. ----, ----, _Russell_, xxix, 351. ----, ----, _G. W. Keely_, xxviii, 318^f; xxx, 164; xxxi, 111. ----, upward forces of, _E. C. Genet_, xi, 110, 339^f; xii, 94, 310; xiii, 377. ----, ---- ----, _T. P. Jones_, in reply to _E. C. Genet_, xiii, 79.

Fluor-spar, of Canada, viii, 71. ----, of Connecticut, ii, 141; v, 254; vi, 212. ----, of Indiana, (Shawneetown,) i, 52; ii, 176; iii, 243, 367. ----, of Massachusetts, i, 136; iv, 50; v, 405, 407; vii, 54. ----, of New Hampshire, xviii, 133, 291; xxxiv, 117. ----, of New Jersey, v, 246. ----, of New York, iii, 235, 367; xxviii, 176. ----, of Pennsylvania, x, 221; xiv, 5. ----, of Rhode Island, viii, 231; ix, 46. ----, of Tennessee, iv, 51. ----, of Vermont, iv, 43, 188; v, 272; vii, 59. ----, of Virginia, iii, 243; iv, 277. ----, of Sicily, viii, 205. ----, chlorophane variety in Connecticut, ii, 141; v, 254; vi, 212. ----, new phenomenon of color in, xxxv, 295.

Fluoric acid in mica, ii, 376. ---- ----, its application to etching glass, vi, 354.^f ---- ---- and fluates, xiv, 387.

Fluoride of iodine, _H. B. Leeson_, xlix, 205.