Part 13

Fluorine in bones, notice of investigations regarding, xlvii, 419. ---- ----, _J. L. Smith_, xlvii, 131. ---- ----, source of, _J. L. Smith_, xlviii, 99. ---- in recent bones, _C. Daubeny_, xlviii, 186.

Fluxions, a theory of, _E. Wright_, xiv, 330^f; xv, 196; xvi, 53.^f ----, solution of a problem in, _T. Strong_, xvi, 283; xvii, 69, 329; xviii, 67. (See _Forces_, next page.)

Fluxional ratio, application of, _E. Wright_, xxiv, 298^f; xxv, 93.^f

Flying in the air, _De Chabrier's_ views on, xix, 395.

Fogs, remarks on, _W. C. Redfield_, xxxiii, 54. ----, on the formation of, _W. M. Carpenter_, xliv, 40. ----, polar, xiv, 378.

Food for sheep, different kinds of, xxiii, 393.

_Foot, L._, on Indian summers, xxx, 8. ----, notices in geology and mineralogy, iv, 35.

Footprints, American, _E. Hitchcock_ on, in Connecticut valley, xxix, 307^f; xxxi, 174; xli, 165; xlvii, 113, 292^f, 390; xlviii, 61. ----, ----, ----, general table of, xxxii, 174. ----, ----, ----, general review of, with descriptions of species, xlvii, 113, 304.^f ----, ----, ----, miscellaneous remarks upon, xlviii, 61. ----, ----, ----, reply to _J. Deane_, xlvii, 390. ----, ----, _J. Deane_ on, in the Connecticut valley, xlv, 178; xlvi, 73^f; xlvii, 381; xlviii, 158^f; xlix, 79^f, 213.^f ----, ----, ----, discovery of, xlvii, 381. ----, ----, ----, at Turner's falls, Mass., xlvi, 73.^f ----, ----, ----, batrachian, in the Connecticut river sandstone, xlix, 79^f, 213.^f ----, ----, ----, reply of, to _E. Hitchcock_, xlvii, 399. ----, ----, _C. Lyell_ on, in the Connecticut valley, xlv, 394. ----, ----, _W. C. Redfield_, notice of fossil, at Middletown, Ct., xxxiii, 201. ----, ----, ----, in new red sandstone of New Jersey, xliv, 134. ----, ----, _anon._, in sandstone at Middletown, Ct., xxxi, 165. ----, ----, _A. T. King_ on, in Westmoreland Co., Pa., xlviii, 217, 343^f; xlix, 216.^f ----, ----, _H. R. Schoolcraft_, on human, in limestone near St. Louis, v, 223.^f ----, ----, _anon._, remarks on ibid, xxxiii, 398. ----, ----, _D. D. Owen_, ibid, xliii, 14.^f ----, ----, _W. A. Adams_, ibid, xliv, 200. ----, foreign, in England, in Cheshire, (Cheirotherium,) xxxvi, 397; xliv, 370. ----, ----, ----, near Liverpool, xxxv, 307. ----, ----, ----, near Shrewsbury, xxxviii, 127. ----, ----, ----, of Cheirotherium, at the Storeton quarries, xxxvi, 394; xxxvii, 223. ----, ----, in Germany, at Hildburghausen, xxx, 191. ----, ----, in Saxony, _B. Cotta_, xxxviii, 255.^f ----, ----, in Scotland, xiv, 394; xv, 84. ----, remark on localities, xxxi, 164. ----, bearing of the discovery of Dinornis on, xlviii, 199.

Foraminifera in the green sand of New Jersey, xli, 213.

_Forbes, J. D._, absorption of light by the atmosphere, xlvi, 200. ----, on radiant heat, xl, 313. ----, polarization of heat, and on the claims of discovery, xl, 317. ----, Bakerian lecture, notice of, xlvi, 200. ----, Travels in the Alps, notice of, xlvi, 172.

Forces, central, of bodies revolving about fixed axes, _J. Martin_, xxxix, 262.^f ----, ----, _T. Strong_, xvi, 283; xvii, 69, 329; xviii, 67; xix, 46; xx, 65, 291; xxi, 66, 334; xxii, 132, 342; xxiv, 40. ----, composition and resolution of, _T. Strong_, xxviii, 85. ----, parallelogram of, _T. Strong_, xxvi, 304; xxix, 345. ----, ----, _A. C. Twining_, xlvi, 324.^f ----, condition of equilibrium between living and dead, xlvii, 241.^f

Forgery, a mode of preventing, _J. Atwater_ and _S. S. Jocelyn_, xv, 398.

_Forman, J._, salt formation of Salina and elsewhere, New York, xix, 141.

Formic acid, artificial, vii, 197. ---- ----, on the production of, xix, 374. ---- ----, ----, _M. Döbereiner_, xxviii, 126. ---- ----, ----, _Göbel's_ observations on, xxviii, 127. ---- ----, utility of, and theory of its formation, _J. P. Emmet_, xxxii, 140.

_Forry, S._, on the climate of the U. States, and general distribution of heat over the globe, xlvii, 18^f, 221. ----, notice of a work on the climate of the U. States, by, xliv, 193.

_Forshey, C. G._, Indian mounds and relics near Natchez, xl, 376. ----, ---- ---- in Louisiana, xlix, 38.^f ----, on the meteors of April, 1841, xlii, 397.

Forts around Boston, _J. Finch_, viii, 338.

Fort Lawrence, account of, _S. P. Hildreth_, xxxi, 57. ---- Macintosh, notice of, xxxi, 19. ---- Taylor, xxxv, 52. ---- Winnebago, geology of region about, _D. Ruggles_, xxx, 1.^f

Fortifications, ancient Indian, in Missouri, iii, 37. ----, ---- ----, _S. Taylor_, xliv, 35.^f ----, ---- ----, see farther under _Mounds_.

Fossils, means of copying by a galvanic deposit, xlii, 327. ----, use of, in geology, _A. Brongniart_, viii, 213. ----, observations, on ibid, _J. E. Doornik_, xv, 90.

Fossil fish, see _Fish_ and also under _Zoology_. ---- footprints, see _Footprints_. ---- vertebral remains in Connecticut valley sandstone, _E. Hitchcock_, xxix, 330. ---- trilobites, see under _Trilobites_. ---- rainmarks, see _Rainmarks_. ---- human bones in Upper Saxony, v, 171. ---- ---- ---- in Guadaloupe, skull, xxxii, 361. ---- ---- ---- in South America, xliv, 277.

Fossils, no freshwater species, in the Medina sandstone, xlii, 230. ----, American, geographical distribution of, in the United States, _J. Hall_, xlv, 157. ----, ----, remarks on ibid, _H. D. Rogers_, _D. Houghton_, xlv, 160. ----, ----, some species of, _T. Say_, i, 381; ii, 34. ----, ----, Polythalamia, _J. W. Bailey_, xli, 400^f; xlv, 313; xlviii, 340.^f ----, ----, in Alabama, tertiary, _I. Lea_, xxv, 419. ----, ----, ----, ----, _H. C. Lea_, xl, 92.^f ----, ----, in Canada, in caves, ix, 354. ----, ----, in Connecticut, bones in new red sandstone, ii, 146; iii, 247; vi, 43. ----, ----, in Connecticut valley, shells, &c., vi, 76^f, 80.^f ----, ----, in Georgia, silicified by thermal waters, xxv, 165. ----, ----, ----, mammals, Brunswick canal, _R. Harlan_, xliii, 141.^f ----, ----, ----, bones, _C. U. Shepard_, xxv, 164. ----, ----, in Kentucky, Big Bone Lick, bones, xviii, 139. ----, ----, ----, report on ibid, by Messrs. _Cooper_, _Smith_ and _DeKay_, xx, 370. ----, ----, in Louisiana, tooth, _W. M. Carpenter_, xlii, 390.^f ----, ----, in Maryland tertiary, list of, _I. Lea_, xxv, 422. ----, ----, in Michigan, on Lake Huron, iii, 270^f, 271.^f ----, ----, Mississippi, bones near the river, _R. Harlan_, xiv, 186. ----, ----, in New Jersey, general remarks on, vi, 240. ----, ----, ----, cretaceous. (See _Cretaceous_, on following page.) ----, ----, ----, corals, xlvii, 213. ----, ----, in N. York, in review of N. Y. geological reports, xlvii, 354^f; xlviii, 296.^f ----, ----, ----, on distribution of, xlvi, 143; xlvii, 117. ----, ----, ----, in Kaatskill Mts., ii, 13. ----, ----, ----, at Corlear's hook, ii, 371. ----, ----, in North Carolina, marl pits, _H. B. Croom_, xxvii, 168. ----, ----, ----, bones, from Lenoir Co., xl, 405. ----, ----, in Nova Scotia, in iron ore, xv, 201. ----, ----, in Ohio, and Ohio valley, _S. P. Hildreth_, xxix, 1.^f ----, ----, ----, microscopic from marl slate near Cincinnati, _J. Hall_, xlviii, 292. ----, ----, in Oregon, elephant bones and mylodon, _H. C. Perkins_, xlii, 136.^f ----, ----, in Virginia, infusorial, _J. W. Bailey_, xlv, 313. ----, ----, ----, polythalamia, _J. W. Bailey_, xlv, 313. ----, ----, ----, in crystalline limestone, xxvi, 222. ----, ----, Upper Mississippi, polythalamia, _J. W. Bailey_, xli, 400.^f ----, ----, near the mouth of the Mississippi, bones, _R. Harlan_, xiv, 186. ----, ----, Upper Missouri, bones, _J. N. Nicollet_, xli, 181. ----, ----, South, human bones, xliv, 277. ----, ----, in Cuba and New Grenada, supposed to be oolitic, _I. Lea_, xl, 41. ----, ----, in Peru, on San Lorenzo, xxxviii, 201. ----, ----, in Patagonia, Megatherium, &c., _C. Darwin_, xxxiii, 105. ----, ----, ----, Taxodon, &c., _R. Owen_, xxxiii, 208; xxxv, 196. ----, foreign, in caves, in England, Plymouth, xxxiii, 106. ----, ----, ----, at Kirkdale, and other places, _W. Buckland_, viii, 158, 317, 319. ----, ----, ----, in Denbigshire, xxxi, 341. ----, ----, ----, in Mendip Hills, xxxv, 304. ----, ----, ----, in France, xxi, 56; xxiii, 388. ----, ----, ----, in Germany, viii, 319, 321. ----, ----, ----, in New Holland, xx, 380. ----, ----, in Britain, marsupial of the Stonesfield slate, xxvii, 412; xxxvii, 228. ----, ----, ----, microscopic corallines and minute shells in white chalk,_Lonsdale_, xxxiii, 111. ----, ----, ----, Sussex, number of, xxiii, 171. ----, ----, ----, vertebrated animals of the crag of Norfolk and Suffolk, xxxi, 339. ----, ----, ----, shells, &c., of Cornwall, _C. W. Peach_, xlii, 327. ----, ----, at Cape of Good Hope, xlix, 213. ----, ----, in France, bones, stags' horns, vi, 199. ----, ----, ----, bones in eastern part, xiv, 203. ----, ----, ----, bones from Argenton, xx, 382. ----, ----, Himalaya Mts., quadrupeds of, xxxiii, 103. ----, ----, in Saxony, human bones, v, 171. ----, see for species under _Zoology_. ----, cretaceous, of U. States, _S. G. Morton_, xvii, 274; xviii, 243, 249^f; xxiii, 288^f; xxiv, 128^f; xlviii, 265^f, 267; --notice of _S. G. Morton's_ synopsis of, xxvii, 377. ----, ----, ----, in New Jersey, foraminifera, xli, 213. ----, coal strata, Wilkesbarre, Pennsylvania, ix, 165. ----, ---- ---- of Ohio valley, _S. P. Hildreth_, xxix, 1.^f ----, ---- ---- ----, Mariner's Mill, xxxi, 28.^f ----, ---- ----, _H. Witham_, xviii, 110.^f ----, ---- ----, in England, iii, 389; xxxiii, 270. ----, oolitic, remarks on, xxxiii, 107. ----, transition or Silurian, species characteristic of, _T. A. Conrad_, xxxv, 246. ----, ----, ibid, general nature of, xxxvi, 12. ----, ----, Ludlow rocks, xxx, 48. ----, in the tertiary of the Atlantic coast, _T. A. Conrad_, xxiii, 339. ----, ---- ---- ---- enumeration of, _T. A. Conrad_, xxviii, 109. ----, ----, of Alabama, list of, _I. Lea_, xxv, 419. ----, ----, ----, _H. C. Lea_, xl, 92.^f ----, ----, of Maryland, list of, _I. Lea_, xxv, 422.

Fossil fruits of Zamia, _G. A. Mantell_, xlv, 401. ---- plants, of coal regions of Wilkesbarre, Pa., ix, 165. ---- ----, ---- ---- of Ohio valley, _S. P. Hildreth_, xxix, 1.^f ---- ----, ----, in Ohio, at Mariner's Mill, xxxi, 28.^f ---- ----, ----, in England, iii, 389. ---- ----, in new red sandstone of England, remarks on, xxxiii, 270. ---- ----, below the coal in England, xxxiii, 87. ---- ----, _A. Brongniart_ on, iv, 266.^f ---- ----, analysis of _Ad. Brongniart's_ work on, vii, 178. ---- ----, _H. R. Göppert's_ views on the lapidification of, xxxiii, 109. ---- wood or trees, silicification of, xxxiii, 108. ---- ----, ----, ibid, _J. D. Dana_, xlviii, 83. ---- ----, in Connecticut, near Southbury, a trunk of a tree, xiv, 228. ---- ----, in England and France, _A. Brongniart_, iv, 269.^f ---- ----, ----, Craigleith quarry trees, xxviii, 390. ---- ----, at Granton, near Edinburgh, xxxvii, 363. ---- ----, in Indiana, palm trees, _D. D. Owen_, xlv, 336. ---- ----, ----, trees with axe marks, _J. T. Plummer_, xliv, 303. ---- ----, in Louisiana, trees with axe marks, _W. M. Carpenter_, xxxvi, 118.^f ---- ----, Michigan, tree near lake, iv, 285. ---- ----, in New York, at Chittenango, calcareous tree, v, 251; xviii, 354. ---- ----, in N. Carolina, v, 261. ---- ----, ----, tree, siliceous, vii, 249. ---- ----, in Nova Scotia, xxx, 340.^f ---- ----, in Nova Scotia, upright trees, xlv, 353. ---- ----, in Ohio, _S. Gazlay_, xxv, 104. ---- ----, ----, trees near Gallipolis, _S. P. Hildreth_, xii, 205. ---- ----, in Russia, vi, 398. ---- ----, in Scotland, near Glasgow, a tree, iii, 382. ---- ----, in Texas, silicified, xxxvii, 215. ---- ----, ----, part silicified and part bituminized, xxxvii, 216. ---- ----, in Virginia, i, 216. ---- ----, in West Indies, i, 56; _S. Hovey_, xxxv, 79. ---- ----, _W. M. Carpenter_ on, recently bituminized, xxxvi, 118.^f ---- ----, _Nicoll's_ sections, xxviii, 74. ---- ----, _H. Witham's_ sections and investigations, xxv, 108; xxvii, 415. ---- forest near Glasgow, xxix, 352.

_Foster, A._, notice of the falls of Tockoa and Tallulah, in Georgia, xiv, 209.

_Foster, J. W._, fossil mastodon, Crawford Co., Ohio, xxxvi, 189.^f

_Foster, W._, easy method of filling a long syphon, xxviii, 268. ----, on the culture of the potato in France, xxvii, 176.

Fountains, origin of, x, 394.

_Fourier_, temperature of the terrestrial globe and planetary spaces, xxxii, 1.

_Fowler, S._, minerals of Warwick, N. Y., ix, 242.

_Fox, R. W._, questions on mineral veins, xxxiii, 135. ----, on the electro-magnetic properties of metalliferous veins, xx, 136. ----, on the changes in minerals by galvanism, xxxi, 373.

_Fox, C._, some notice of British naturalists, xxxvi, 217. ----, notice of some American birds, xxix, 291.

France, botanical fêtes, ix, 154. ----, fires in, few, xxv, 291. ----, mortality of infants, xix, 192. ----, phthisis in, 1828, xix, 193. ----, population of, xv, 397. ----, scenery in some parts of, x, 167.

Franconia iron works, viii, 180.

Franklin, B., original letters of, iv, 357; v, 157.

Franklinite, ii, 323; v, 41, (shot ore,) 242, 400.

_Fraser, John_, botanical labors of, _A. Gray_, xlii, 9.

Fresco painting, means of detaching, iv, 384.

Fredonia gas works, xvii, 398.

Freestone of Sugar Loaf mountain, Maryland, xxvii, 21.

Freezing mixture, _Boutigny's_, xxx, 168. ---- ----, xii, 195. ---- point, influenced by pressure, _L. C. Beck_, xlv, 49. ---- water, effect from, in a Leyden jar, viii, 374. ---- ----, by the aid of sulphuric acid, apparatus for, _R. Hare_, xxvii, 132.^f

_Frodsham, W. J._, on the vibration of pendulums with different suspending springs, xxxvii, 278. ----, elected a member of the Royal Society, xxxvi, 195.

Frogs, introduction of, into Ireland, xxviii, 398. ----, in rocks, remarks on, _D. Thomas_, xix, 167.

Fromont garden, account of, xx, 83.

Frozen wells, xxxvi, 184.

Fruit, method of preserving without sugar, xv, 381. ----, fossil, of Zamia, &c., _G. A. Mantell_, xlv, 401. ---- trees, to destroy worms attacking, xxvii, 197. ---- ----, propagation of, xxvi, 183. ---- ----, time of flowering and other memoranda for different seasons, at Marietta, Ohio, see _Floral Calendar_ and _Meteorological Register_.

Fucoids and other marine plants, _Ad. Brongniart_, ix, 375. ---- in Indiana, _J. T. Plummer_, xliv, 290.^f ---- in rocks of western N. York, xxxvi, 46. ---- in Pennsylvania, xx, 415; xxvii, 347.

Fucoides Harlani, xxxvi, 46; xlviii, 299.^f ---- bilobata, xlviii, 307.^f ---- demissa, xlvii, 360.^f

Fuego, Tierra del, rush of, xviii, 189.

Fuel, _E. North_ on, xi, 66. ----, amount of, consumed in New York city, xvi, 360. ----, economy of, _W. R. Johnson_, xxiii, 318.^f ----, of coal tar and water, _C. Daubeny_, xxviii, 71.

Fulgurites, or lightning tubes in sand, xx, 396. ----, siliceous tubes, Rome, N. Y., _C. E. West_, xlv, 220. ----, near Dresden, remarkable, xlvi, 210. ----, in chalk, cause of, _C. Lyell_, xxxviii, 122.

Fuller's earth in Connecticut, ii, 217.

Fulminating compounds, preparation of, _S. Guthrie_, xxi, 288, 293. ---- gold, ii, 350; xlviii, 142. ---- silver, xviii, 335. ---- ----, of _Berthollet_, xviii, 155. ---- ----, _Mitscherlich's_ mode of preparing, xix, 379. ---- ----, injury to _R. Hare_ from the explosion of, xxii, 185. ---- powders, caution against, i, 168. ---- ----, use of crackers of, xxvi, 187. ---- ----, of cyanogen and calcium, _R. Hare_, xxxvii, 268. ---- ----, new, made with saltpetre, sulphur, &c., xvi, 397.

Fulminic acid, composition of, x, 191.

Fumigation, x, 379. ----, in Sweden, vii, 188.

Functions, relation of _Sturm's_, auxiliary to the roots of an algebraic equation, _Prof. Sylvester_, xlii, 163.

Functional equation, solution of, _G. R. Perkins_, xlii, 69.

Fungi, composition of, xlix, 393.

Furnace for ventilating sewers, _R. Bulkley_, vii, 177. ----, hot blast, _T. Clark_, xxxi, 180. ----, ---- ----, saving by, xxviii, 71. ----, chimneys of, containing cadmia, xii, 168. ----, ----, containing titanium crystals, xii, 189.

Furrows in rocks, see _Scratches_.

Fur trade and fur-bearing animals, xxv, 311.

Fusibility of mixture of carbonate of potash and carbonate of soda, xix, 379.

Fusible metal, xxi, 371.

Fusion of charcoal and anthracite, _B. Silliman_, v, 108, 361; vi, 341, 349, 378; viii, 147; x, 109, 119. ---- ----, _J. Griscom_, v, 364. ---- ----, _R. Hare_, viii, 288; x, 111, 118; xxxviii, 190. ---- ----, _L. Vanuxem_, viii, 292; x, 102. ---- by compound blowpipe, see _Blowpipe_.

Fustic, yellow wood resembling, on the Red river, iii, 44.

_Fyfe, A._, photographic processes, xxxvii, 175.

G.

Galactin, _T. Thomson_, xxxv, 303.

_Gale, L. D._, apparatus for obtaining potassium, xxi, 60.^f ----, on the preparing and preservation of potassium, xix, 205.^f ----, on _T. D. Mitchell's_ mode of preparing carbonic oxide, xxvii, 129.

Galena, crystallized by galvanism, _Becquerel_, xxviii, 291. ----, localities of, see _Lead ore_.

_Galindo, J._, eruption of the volcano of Cosiguina, xxviii, 332.

Galle's first comet, xxxviii, 378; xl, 207. ---- second, observations on, xl, 40; xl, 207. ---- three, notice of, xl, 207.

Gallic acid, new process for obtaining, xvi, 395. ---- ----, new process for, _E. N. Kent_, xlvi, 78. ---- ----, _Döbereiner's_ method for, xxviii, 358. ---- ----, _Pelouze_, xxviii, 125.

Galvanic battery, _E. de Butts_, viii, 271.^f ---- ----, of carbon, xxxix, 132. ---- ----, ----, _B. Silliman, Jr._, xliii, 393; xliv, 180.^f ---- ----, _A. Crosse's_, some account of, xxxii, 372; xxxv, 135.^f ---- ----, _A. Dela Rive's_, v, 395. ---- ----, dry, xii, 195; xvii, 162. ---- ----, _Grove's_, xxxviii, 116. ---- ----, ----, experiments with, _S. F. B. Morse_, xlv, 390.^f ---- ----, _R. Hare's_ new modifications of, iii, 105.^f ---- ----, ----, calorimotor, i, 413^f; v, 94, 357, 364; vi, 337; xxxii, 284.^f ---- ----, ----, deflagrator, iii, 105^f; iv, 201; v, 94^f; vi, 337; vii, 347^f; viii, 99; ix, 181; xl, 48. ---- ----, ----, ----, improved form of, _M. Faraday_, xxxii, 170. ---- ----, ----, combining the advantages of the trough of Cruikshank with the deflagrator, xxxii, 285.^f ---- ----, of great power, _F. W. de Moleyns_, xliv, 357. ---- ----, _J. Henry_, on a spark from a long conductor uniting the poles of, xxviii, 327. ---- ----, ----, action of a spiral conductor, xxviii, 329. ---- ----, _C. G. Page_, on iron or any metal a substitute for copper, xxxii, 197. ---- ----, ----, on the benefit of fresh immersion, xxxvi, 137.^f ---- ----, _W. B._ and _H. D. Rogers_, experimental enquiry into some of the laws of, xxvii, 39.^f ---- ----, ----, relative influences of the zinc and copper, xxvii, 41. ---- ----, ----, examination of _Ritchie's_ law of surface, xxvii, 53. ---- ----, ----, influence of temperature, xxvii, 57. ---- ----, _J. B. Rogers_ and _J. Green_, ibid, xxviii, 33. ---- ----, ----, relative importance of the zinc and copper, xxviii, 34. ---- ----, ----, relative distance of the plates, xxviii, 39. ---- ----, ----, deflecting power from different menstrua, xxviii, 40. ---- ----, _W. Sturgeon_, difference in the effects of the two polar wires, xxxix, 31.^f ---- ----, _Watkins's_ dry, xvii, 162. ---- blasting, _R. Hare_, xxi, 139; xxvi, 352^f; xxxviii, 188. ---- ----, _H. K. G. Morgan_, xxxviii, 33. ---- calorimotor, _Hare's_, i, 413^f; v, 94, 357, 364; vi, 337; xxxii, 284.^f ---- ----, for galvano-ignition apparatus, _R. Hare_, xxxii, 284.^f ---- circle, theory of, _T. Graham_, xxxviii, 117. ---- currents, caloric a cause of, _J. P. Emmet_, xxv, 269. ---- ----, remarks on, xviii, 199.^f ---- ---- and sparks from the horse-shoe magnet, _J. P. Emmet_, xxiv, 78.^f ---- deflagrator, _Hare's_, iii, 105^f; iv, 201; v, 94^f; vi, 337; vii, 347^f; viii, 99; ix, 181; xl, 48. ---- ----, improved form of, _M. Faraday_, xxxii, 170. ---- experiments by _A. Crosse_, producing crystals, and, as supposed, insects, xxxv, 125.^f ---- ---- by _R. Hare_, viii, 145. ---- ---- with grasshopper's legs, J. W. Bailey, xxxi, 292.^f ---- ignition of gunpowder, _R. Hare_, xxxvii, 269. ---- induction, _J. P. Emmet_, xxvi, 23.^f ---- lamp, an improvement in, _J. Cutbush_, ii, 332. ---- light, transmission of, through metals of different conducting powers, _J. Thomas_, xxxiv, 205.^f ---- ----, daguerrotype experiment by, _B. Silliman, Jr._ and _W. H. Goode_, xliii, 185. ---- multiplier, see _Galvanometer_. ---- music, production of, _C. G. Page_, xxxii, 396; xxxiii, 118. ---- phenomenon, attending the soldering of water pipes in New York city, xvii, 194. ---- protection by the contact of heterogeneous metals, xvi, 263. ---- trough, Watkins's, xvi, 215.

Galvanism, anthracite a conductor of, v, 200. ----, carbon fused by, v, 108, 361; vi, 341, 349, 378; viii, 147, 288; x, 109, 119; xxxviii, 190. ----, ---- ----, _L. Vanuxem's_ examination of, viii, 292; x, 102. ----, on colors supposed to be transferred by, through animal substances, _A. Jones_, xxi, 316. ----, _A. Crosse's_ experiments in, see _Crosse_. ----, crystallization of metals by, _G. Bird_, xxxiii, 267. ----, ----, _Becquerel_, xvii, 383. ----, crystals and insects produced by, _A. Crosse_, xxxv, 125.^f ----, engravings copied by, _von Kobell_, xlviii, 221.^f ----, engravings and medals copied by, _T. Spencer_, xl, 157.^f ----, fossils copied by, xlii, 327. ----, gilding by, xli, 402. ----, insects supposed to be produced by, xxxii, 374^f; xxxiii, 272; xxxv, 125.^f ----, ---- ----, _W. H. Weekes_, xliii, 395. ----, grasshopper's legs, a substitute for frogs, _J. W. Bailey_, xxxi, 292.^f ----, insulation of wires, a mode of, proposed, _A. A. Hayes_, xx, 409. ----, metals precipitated by, structure of, _W. de la Rue_, xlix, 390. ----, minerals changed by, _R. W. Fox_, xxxi, 373. ----, results from heat of, and decomposition, _W. Sturgeon_, xxxix, 29. ----, shocks from the calorimotor, how increased, _C. G. Page_, xxxi, 137.^f ----, size of plates, influence of, in, xxvii, 189. ----, theory of, _Prof. Pfaff_, xix, 178. ----, theory of, _R. Hare_, i, 413.^f ----, theory of, _C. F. Schönbein_, xxxviii, 119.

Galvanography, _von Kobell_, xlviii, 221.^f ----, _T. Spencer_, xl, 157.^f ----, fossils copied by, xlii, 327.

Galvano-ignition apparatus, _R. Hare_, xxxii, 282.^f

Galvanometer, _R. Hare's_ improved, xxvi, 359.^f ----, ----, rotary multiplier, xxxviii, 339.^f ----, _J. Henry_, on the application of, to electro-magnetic apparatus, xix, 400.^f ----, _J. Locke_, notice of a new, xxvi, 103^f, 378.^f ----, ----, large thermoscopic, xxxiii, 365. ----, _J. P. Emmet's_, new form of, xxvi, 311. ----, _C. G. Page_, on the use of, xxxii, 354.^f ----, ----, astatic, or rotary, xxxiii, 376.^f ----, ----, axial, xlix, 136.^f ----, _C. G. Page_, circular, xxxv, 259.^f ----, modified, _W. B._ and _H. D. Rogers_, xxvii, 39.^f

Galvanoscope, a means of detecting the failure of water in steam boilers by, _C. G. Page_, xxxvi, 141.^f

Galvano-magnetic condenser, v, 394. ---- - ---- apparatus, _J. F. Dana_, vi, 330.^f ---- - ---- ----, Italian, v, 388.

_Gambey_, notice of, vii, 374.

_Gambold_, on the botany of the neighborhood of the Connasarga river, Cherokee country, i, 245.

_Gannal, J. N._, new process of embalming, xl, 194.

Garden of Fromont, account of, xx, 83.

Gardens, botanic, in Austria, ii, 340. ----, ----, in Russia, xx, 175. ----, to destroy weeds in, xxii, 381.