Part 18

Holyoke, Mt., scenery of, vii, 5. ----, geological structure of, vi, 53.

Homer's Iliad, notice of a copy of, of the fourth century, ii, 343.

Hones, stone for, at Lake Memphremagog, v, 406. ----, ----, in Massachusetts, xxii, 34.

Hone-slate of N. Carolina, xiv, 238.

_Hooker, W. J._, on the Botany of America, ix, 263.

Hop, chemical examination of, _A. W. Ives_, ii, 302.

Hops, analysis of, vi, 393. ----, lupuline from, xii, 388.

_Hopkins, M._, on mystery, xiii, 217.

_Hopkins_, on the geological phenomena of elevation, xxxi, 365. ----, views on dislocations and fractures of the earth's surface, xxxiii, 83.

Horns, manufactured articles from, xx, 394.

Hornblende, localities of, in Connecticut, x, 14. ----, ----, in Massachusetts, vi, 226. ----, ----, in New Hampshire, vi, 245; xviii, 129. ----, ----, in New Jersey, v, 246; ix, 245. ----, ----, in New York, ix, 40, 41, 251; xix, 226; xxi, 324.^f ----, ----, in Pennsylvania, xiv, 4, 17. ----, ----, in R. Island, iv, 285. ---- rocks, of western Massachusetts, viii, 9. ---- slate, of the Connecticut valley, vi, 20.

Horse, anecdote of, xlvi, 243. ----, a Filaria in the eye of, xxxix, 278.^f ----, fed with bread in Silesia, xi, 397. ----, fossil bones of, in Louisiana, _W. M. Carpenter_, xxxiv, 201.^f ----, power of, xxi, 167.

Horse latitudes, xxxiii, 64.

Horticultural experiments, _J. T. Plummer_, xl, 197.

Horticulture, propagation of fruit trees and vines, xxvii, 288.

Hospital of Mt. St. Bernard, v, 393.

Hospitals in France, v, 191. ----, foundling, in Europe, xvii, 393.

Hot blast, in the manufacture of iron, _T. Clark_, xxxi, 180. ---- ----, saving by, xxviii, 71. ---- springs or baths, see _Springs_.

_Hough, H.G._, inquiries into the principles of liquid attraction, xvii, 86.^f

_Houghton, D._, geology of Michigan, xxxiv, 190. ----, mining region of Michigan, xli, 183.

Houses, improvements in laying out grounds, arranging and building, &c., _E. Lord_, xxv, 304. ----, double doors and double windows for, xxv, 294. ----, mode of heating, xxv, 295. ----, on securing from fire, _Lord Mahon's_ experiments, xxv, 290, 298; xxvi, 286. ----, ibid, _D. Hartley's_ experiments, xxv, 300. ----, mode of supplying cisterns with water for extinguishing fires, xxv, 301; xxvi, 293.

Houstonia, notice of species of, x, 262, 263.

_Howard, W._, description of a differential thermometer, ii, 327.^f ----, on the stopping of astronomical clocks, viii, 277.

_Howe, S. G._, notices of ancient and modern Greece, xviii, 250.

_Howell, S._, on the shad fisheries of the Delaware, xxxii, 134.

Huaco, an Indian remedy for the hydrophobia, _W. R. Johnson_, xxiv, 279, 388. ----, _L. Feuchtwanger_, xxii, 182.

_Hubbard, O. P._, chemical examination of the bituminous coal of Chesterfield Co., Va., xlii, 369. ----, geological and mineralogical notices, xxxii, 230.^f ----, calcareous rocks at Boonville, N. Y., xxxii, 230. ----, ---- ----, ibid, rhomboidal structure in, xxxii, 232.^f ----, boulders at Boonville, xxxii, 233. ----, locality of crystallized calc spar, Boonville, N. Y., xxxii, 234. ----, ---- of green coccolite and tabular spar, at Boonville, N. Y., xiii, 198; xxxii, 234. ----, on the removal of carbonic acid from wells, xxxviii, 206; xlii, 165. ----, spontaneous combustion in wood ashes, xlii, 165. ----, geological observations on an excursion to the White Mts., numerous trap dykes, minerals, granite veins, &c., xxxiv, 105.^f ----, Third Geological Report of New York, notice of, xxxix, 95. ----, Geological Reports of Ohio, Indiana and Michigan, noticed by, xl, 126.

_Huber, F._, life and writings of, xxiii, 117.

Hudson river, northern sources of, _W. C. Redfield_, xxxiii, 301.^f ---- ----, fish of, xx, 151. ---- bay, rocks and country in the vicinity of, xvii, 11.

_Hudson's_ series of investigations with the barometer, xxiv, 393.

Hudsonite, L. C. Beck, xlvi, 32.

Human bones, fossil, v, 171. ---- ----, of the præ-historic world, in S. America, xliv, 277. ---- skeleton, fossil, of Guadaloupe, skull of, _J. Moultrie_, xxxii, 361. ---- footprints of the Mississippi valley, in limestone, v, 223^f; xxxiii, 398. ---- ----, ibid, in limestone, _D. D. Owen_, xliii, 14.^f ---- ----, ibid, _W. A. Adams_, xliv, 200. ---- race, stature of, _J. G. St. Hilaire_, xxii, 357. ---- ----, law of increase in stature, _Quetelet_, xxii, 376. ---- ----, varieties of, xiv, 372. ---- ----, singular variety of, in Peru and Bolivia, xxviii, 78.

_Humboldt, A._, expedition to Siberia, xvii, 405. ----, on the invention of the mariner's compass, xl, 242. ----, mean height of the continents above the sea, xlix, 397.

Humboldtilite, xi, 251.^f

Humboldtine, v, 193.

_Hume, Sir Abraham_, notice of, xxxvii, 118.

Hungary, observations on _Beudant's_ geological travels in, vii, 256. ----, tribe of Scotacks in, v, 384.

_Hunt, R._, on the chromatype, xlvi, 396. ----, influence of light on the germination of seeds, xliv, 352. ----, influence of light on the growth of plants, xliv, 352; xlvi, 397. ----, influence of ferro-cyanate of potash on iodide of silver, xlii, 317.

Huraulite, analysis of, xix, 371.

Huronite, xxx, 241.

Huron race of Indians, _S. G. Morton_, xxxviii, 368.^f

Hurricane, see _Wind_.

_Hutton's_ table of products, errors in, xliii, 116.

_Huxham's_ Auroral Register, xxxiii, 297.

Hyalite, in Florida, xxv, 165. ----, at West Point, N. Y., xxxii, 87.

_Hybernation, I. Lea_, ix, 75. ----, _S. Woodruff_, xxiv, 363.

Hydrargillite, _C. Dewey_, iii, 239.

Hydrate of magnesia, from Shetland, vii, 365.

Hydraulic cement in N. York State, xxxvi, 45. ---- limestones of N. York, xxxix, 96; xlvi, 29. ---- ---- in the Appalachian chain, xxxvii, 381. ---- ----, magnesian character of, xxxvii, 381. ---- machine, new, ii, 345. ---- ram, new, iii, 381. ---- volcano, xxii, 358.

Hydriodic acid, preparation of, xvi, 383; xlvii, 192.

Hydroboracite, analysis of, xxviii, 394.

Hydrobromic acid, xlvii, 192.

Hydro-carbo-sulphuric acid, how prepared, vii, 187.

Hydrochloric acid, notice of experiments with reference to, _Macaire_ and _De la Rive_, xi, 393. ---- ----, mode of preparing pure, from muriatic acid of commerce, _R. Hare_, xxxix, 371. ---- ----, fumigation with, at Plattsburgh, in 1819, viii, 200. ---- ----, condensation of, _M. Faraday_, vii, 357.

Hydrocyanic acid, _F. Magendie_ on, ii, 81. ---- ----, memoir on, _B. L. Oliver_, iii, 182. ---- ----, ----, _Orfila_, xviii, 157. ---- ----, effect of muriatic and sulphuric acids on, xviii, 146. ---- ----, apparatus for the evolution of, _R. Hare_, xxix, 244.^f ---- ----, extraordinary production of, _A. A. Hayes_, xviii, 201. ---- ----, preservation of, xvi, 260. ---- ----, cases in which administered, ii, 83; iii, 187. ---- ----, efficacy in asthma, vi, 366. ---- ----, effects on a horse, xii, 385. ---- ----, effects of, on vegetation, x, 190. ---- ----, chlorine, an antidote for, xvii, 174; xxi, 157.

Hydrogen, combustion of, under pressure, xxii, 352. ----, ----, in water, being a new application of Hare's blowpipe, v, 347. ----, mixed with oxygen, effect of breathing, viii, 375. ----, a new carburetted, xxx, 180. ----, gas apparatus, vii, 392. ----, self regulating reservoir for, _R. Hare_, xi, 140.^f ----, peroxyd of, action of, xvii, 34. ----, and chlorine, iii, 341.

Hydromagnesite of Hoboken, _Wachtmeister_, analysis of, xviii, 167.

Hydrometers, opinion on, _R. Hare_, xi, 115.

Hydrophobia, remarks on, ii, 359; iv, 385; v, 177; xvii, 204. ----, singular case of, xvii, 205. ----, account of cases of deaths by, xxiii, 143. ----, cured, x, 385. ----, ----, by means of mercurial ointment, xix, 204. ----, ----, by Huaco, an Indian remedy, _W. R. Johnson_, xxiv, 279.

Hydrosilicite, xv, 388.

Hydrostatic balance, xix, 185. ----, press, xix, 185.

Hydrous anthophyllite of N. York, _T. Thomson_, xix, 359.

Hydroxanthic acid, vii, 376.

Hygrometer, Daniell's, remarks on, _E. Loomis_, xlvii, 19; xlix, 277. ----, portable, _A. A. Hayes_, xvii, 351.^f

Hygrometric Register at Western Reserve College, _E. Loomis_, Sept.-Nov. 1838, xxxvi, 166; --1838-1840, xli, 315; --1841-44 xlix, 271. ---- ----, at Hudson, Ohio, compared with those at Greenwich, _E. Loomis_, xlix, 276. ---- observations, mean of, at Malvern, in Worcestershire, xxxviii, 102. ---- ----, at Matanzas, _A. Mallory_, xxxi, 287. ---- ----, at New Orleans, _Barton_, xxxi, 400. ----, see farther under _Meteorology_.

Hygrometry, a method of experimenting in, x, 387.

Hyperbola, method of describing, _R. G. Hazard_, xxi, 314.^f

Hypersthene of N. York, analysis of, _L. C. Beck_, xlvi, 35. ----, in Massachusetts, iv, 55.

Hyssopus anisatus, iv, 65.

I.

Ice, artificial preparation of, xviii, 145. ----, evaporation of, xvi, 390. ----, formation of, in still water, iii, 179. ----, ----, at the bottom of rivers, _H. W. Sheffey_, xxxvi, 186. ----, ----, ibid, _T. Stratton_, xl, 407. ----, ----, sparks given out during, xxvi, 178. ---- in a well, xxxvi, 184. ---- of the sea, characters of, and remarks on, v, 131. ----, Greenland, i, 101. ---- of the Alps, _J. D. Forbes_, xlvi, 173; --veined structure and motion consequence of its viscous condition, xlvi, 174, 175.

Icebergs, remarks on, v, 131. ----, formation of, _C. Wilkes_, xlvii, 114. ----, _J. P. Couthouy_, xliii, 154. ----, character of, and facts concerning, _J. L. Hayes_, xlv, 316. ---- and currents of the North Atlantic, _W. C. Redfield_, xlviii, 373.^f ---- in low latitudes, xxii, 200. ----, theory of drift, see _Drift_.

Ice houses, natural, iv, 174. ---- ----, ----, in Salisbury, Ct., viii, 254. ---- ----, ----, near Williamstown, Mass., iv, 331; v, 398. ---- ----, ----, of St. Ouen, xii, 184.

Ice mountain of Hampshire Co., Va., _C. B. Hayden_, xlv, 78.^f ---- ---- in Vermont, _S. P. Lathrop_, xlvi, 331. ---- water, drinking of, xv, 194.

Iceland, notice of, xvii, 15. ----, geysers, springs, &c. of, _E. Robert_, xxxi, 167; xxxii, 196. ----, ----, remarks on, _G. Bischof_, xxxvi, 255.

Ichnolithology, see _Footprints_.

Ichthyolites, see _Fish_.

Ichthyosaurus, largest, found by _Mary Anning_, xxviii, 369. ----, in U. States, xxvii, 353. ---- at Strensham, England, xxxviii, 126.

Ichthyosauri, _T. Hawkins_, xxvii, 413.

Iconography, xxxiii, 184.

_Ideler, J. L._, views of, on meteorites, shooting stars and Auroras, xxviii, 288.

Idocrase, analysis of, _T. Richardson_, xxxviii, 120. ----, of Skye, xxviii, 395. ----, American, first detected, _W. Meade_, vii, 50. ----, crystal, from Amherst, N. H., xlvi, 381.^f ----, in Connecticut, ix, 44. ----, in Massachusetts, viii, 44; x, 11. ----, in N. York, xvii, 145; xxi, 327; xlvi, 35. ----, in Rhode Island, viii, 230.

Idria quicksilver mines, xxix, 219.

Igneous action, as indicated by certain minerals in New York, _L. C. Beck_, xlvi, 333. ---- origin of some trap rocks, _B. Silliman_, xvii, 119. ---- ---- ibid, _T. Cooper_, iv, 205. ---- theory of the earth, remarks on, _W. Maclure_, xvi, 351. ---- ---- ----, as connected with the secular variation of the magnetic needle, _J. H. Lathrop_, xxxviii, 68. ---- ---- ----, applications of, ibid, xxxix, 90.

Ignis fatuus, observations on, _J. Mitchell_, xvi, 246.

Iguanodon, bones of, in Mantell's Museum, xxiii, 165. ----, discovery of, xxvii, 355.^f ----, Maidstone, xxvii, 420.

Ilicine, in fevers, xxii, 349.

Ilex laurifolia, v, 289.

Illinois, geology of Upper, _C. U. Shepard_, xxxiv, 134.^f ----, ----, ibid, coal formation, xxxiv, 142.^f ----, Lake shore near Chicago, xxxiv, 134. ----, route, expense, &c., of the Michigan and Illinois canal, xxxiv, 138. ----, mineral and brine springs, xxxiv, 157.

Ilmenite, (Crichtonite,) localities of, in Connecticut, xii, 161, 170; xxxv, 179; xliii, 364.^f ----, in Pennsylvania, xiv, 6, 7. ----, in Rhode Island, xxxv, 180.

Impression in marble near Philadelphia, notice of, _J. B. Browne_, xix, 361.^f

Incas, dominion of, xxxviii, 365.

Inclined planes, on, _J. Thomson_, xxiii, 107.

Indelible coloring, xxiv, 373. ----, ink, see _Ink_.

India, culture of cotton in, attempted, xl, 40.

India rubber carpets, xxvi, 191.

Indian attacks on Wheeling, xxxi, 3. ---- axe of hornblende rock, xliii, 31.^f ---- cemetery, Ohio, _S. P. Hildreth_, xxxi, 69. ---- corn, origin of, xix, 186. ---- ----, oil of, xliii, 403. ---- mounds of the West, xxii, 124. ---- ----, crania, &c., _Dr. Warren_, xxxiv, 47. ---- ----, and earthworks in the form of animal effigies, _R. C. Taylor_, xxxiv, 88.^f ---- ----, and other remains in Iowa and Wisconsin, _S. Taylor_, xliv, 21.^f ---- ----, _Col. Whittlesey_, xxxiv, 361. ---- ----, and relics, near Natchez, _C. G. Forshey_, xl, 376. ---- ----, in Louisiana, _C. G. Forshey_, xlix, 38.^f ---- ----, in Indiana, _J. T. Plummer_, xliv, 313. ---- mummies and remains in the caves of Tennessee, xxii, 124. ---- remains, skeleton, &c., xxxiv, 47. ---- races of America, characteristics of, _S. G. Morton_, xxxviii, 347; xlvii, 408. ---- ----, ancient Peruvian, xxxviii, 360.^f ---- ----, Araucanian, xxxviii, 368.^f ---- ----, Huron, xxxviii, 368.^f ---- ----, remarks on, _R. C. Taylor_, xxxiv, 88. ---- sepulchre and remains, xxxi, 8.^f ---- summer, remarks on, xviii, 66. ---- ----, remarks on, _L. Foot_, xxx, 8. ---- ----, essay on, xxvii, 140. ---- utensil, ancient, _W. R. Johnson_, xxiii, 65.^f ---- words in the English language, _J. W. Gibbs_, xli, 28. ---- ----, names of beasts, birds and insects, origin of, _J. W. Gibbs_, xli, 39.

Indians, Esquimaux, remarks on, xvi, 145. ----, Seminole, ix, 132. ----, adventure of Lewis Wetzel among, xxxi, 14. ----, murder of Logan's family by, xxxi, 11.

Indiana, sketch of the geology and mineralogy of, _W. B. Stilson_, i, 131. ----, ibid, cave near Corydon, containing Epsom salts, i, 133. ----, geological report on, by _D. D. Owen_, noticed, xxxiv, 193; xl, 133. ----, suburban geology of Richmond, _J. T. Plummer_, xliv, 281.^f ----, pisolitic rocks, _J. T. Plummer_, xliv, 283.^f ----, phosphate of iron, _J. T. Plummer_, xliv, 287. ----, fossil including fossil fuci, _J. T. Plummer_, xliv, 290.^f ----, ancient wood and stumps of trees, _J. T. Plummer_, xliv, 302. ----, boulders in, _J. T. Plummer_, xliv, 303. ----, magnesia in the water of, _J. T. Plummer_, xliv, 307. ----, soil of, _J. T. Plummer_, xl, 198; xliv, 310. ----, mounds of, _J. T. Plummer_, xliv, 313.

Indigo, _J. Dalton's_ mode of testing the value of, ix, 385. ----, analysis of, xviii, 241. ----, mode of assaying, _S. L. Dana_, xlii, 320. ----, on the manufacture of, in the U. States, _W. Partridge_, xviii, 237.

Induction, electrical, see _Electrical_.

Inertia, remarks on, _Z._, xiv, 50.

Infinites, on, _I. Orr_, v, 326.

Infusoria, _Turpin_, on siliceous, xxxii, 400. ----, _C. G. Ehrenherg's_ discoveries in relation to fossil and recent, xxxiii, 111; xxxv, 371^f; xxxvii, 116. ----, ----, in volcanic rocks, xlix, 397. ----, ----, in argillaceous formation, at Berlin, xlii, 388. ----, ----, conclusions on, xxxviii, 405; xlvii, 208. ----, _C. G. Ehrenberg_, on American, xliii, 393; xlvi, 297. ----, ----, near Richmond, Virginia, xlvi, 300. ----, ----, Maryland and Virginia, xlviii, 201. ----, ----, near West Point, New York, xlvi, 302; xxxix, 191. ----, _J. W. Bailey_, in peat earth, West Point, xxxv, 118.^f ----, ----, from Oregon, Bermudas, Virginia and Maryland, catalogue of, xlviii, 321.^f ----, ----, Connecticut, New Haven harbor, xlviii, 337.^f ----, ----, S. Carolina, Charleston harbor, xlviii, 338.^f ----, ----, Virginia, xli, 214; xlv, 313; xlvi, 137^f; xlviii, 330.^f ----, ----, Nova Scotia, xlviii, 339. ----, ----, with bones of Mastodon, xlviii, 339. ----, ----, of the family Baccillaria, xli, 284^f; xlii, 88^f; xliii, 321^f;--localities, xliii, 328, 329. ----, _E. Hitchcock_, remarks on the discoveries of, xli, 258. ----, _W. B. Rogers_, stratum of, near Richmond, Virginia, xlv, 313; xlvi, 141.

Infusorial vegetable remains in England, _J. E. Bowman_, xl, 174.

Injection, venous, improved instrument for, xxiii, 114.^f

Ink, antediluvian, _J. T. Plummer_, xliv, 287. ----, black writing, improvement in, _J. Bostoch_, xx, 195. ----, receipt for, xxx, 169. ----, made with chesnut bark, ix, 202. ----, India, substitute for, xxvi, 189. ----, indelible, xxiii, 201. ----, ----, composition of, _Traill_, xxxvi, 209. ----, ----, _H. Braconnot's_, xvii, 172, 371. ----, ----, stain from, discharged by corrosive sublimate, xxvi, 392. ----, sympathetic, xviii, 148.

Inking machine, Wood's, xxiii, 103.^f

Insanity, _B. W. Dwight's_ cases of, i, 431. ----, connection of civilization with, xxii, 379.

Insects, circulation in, xxx, 186. ----, miscellaneous observations on, _J. T. Plummer_, xl, 146. ----, a means of protecting trees from, x, 204. ----, method of destroying, xxxiii, 273. ----, on the preservation of, _T. Roger_, xix, 213. ----, produced, as supposed, by galvanism, _A. Crosse_, xxxii, 374^f; xxxv, 125.^f ----, ibid, _W. H. Weekes_, xliii, 395. ----, not produced by galvanism, xxxiii, 272; xlix, 227.

Inspiration of inflammable gas, xiv, 370.

Institute, Albany, transactions of, noticed, xvii, 208, 415; xix, 173, 360. ----, Mechanic's, New York, notice of proceedings, xxxi, 415. ----, National, a society established at Washington, xli, 203.

Interest, new mode of computing, _G. R. Perkins_, xlvii, 51.

Interference of light, new case of, _Powell_, xxxviii, 107. ---- ----, apparatus for experiments on, _E. S. Snell_, xlix, 26.^f

Iodate of soda, iodate of magnesia, and a borate, &c., Tarapaca, _A. A. Hayes_, xxxviii, 410; xxxix, 378; xliv, 6.

Iodic acid, crystallization of, xx, 185. ----, action of, with morphine, xx, 184. ---- ----, combinations of, with vegetable alkalies, xix, 371. ---- ----, preparation of, xxviii, 136.

Iodide of azote, preparation of, _Serullas_, xviii, 154. ---- of calcium and potassium, xvii, 177. ---- of lead, decomposition of, xv, 188.

Iodine, iii, 386. ----, acidification of, by nitric acid, xxi, 376. ----, atomic weight of, _J. J. Berzelius_, xix, 383. ----, crystallization of, xvii, 168. ----, ----, _W. W. Mather_, xviii, 84.^f ----, action of, on the protochloride of mercury, xvi, 395. ----, a reagent for hydrosulphuric acid, _A. du Pasquier_, xl, 123. ----, used as a dye, xv, 394. ----, medical uses of, iii, 386; vi, 383. ----, ---- ---- of tincture of, xx, 196. ----, ---- ----, ibid, in a report by _Dumeril_ and _Magendie_, xx, 386. ----, ---- ----, in Anguina pectoris, xx, 411. ----, ---- ----, in causing disappearance of the breasts, xi, 395. ----, ---- ----, in gout and Anguina pectoris, xvi, 176. ----, ---- ----, as a cure for the goitre and scrofula, v, 387. ----, occurrence of, in coal, _Bussy_, xl, 217. ---- and bromine in mineral waters, remarks on, _C. Daubeny_, xxi, 366. ---- in a mineral spring in Italy, vii, 387. ---- in the Saratoga mineral water, xvi, 217; _J. H. Steel_, xvi, 242. ---- in the Kenawha waters, xviii, 260. ---- and bromine in the salt springs of Athens, Ohio, _W. W. Mather_, xlix, 211. ---- in plants and mosses, xlv, 227. ---- in sponges, ii, 363. ----, in an ore of zinc, xvi, 389. ----, cyanide of, a mode of obtaining, xiii, 181. ----, fluoride of, _H. B. Leeson_, xlix, 205. ---- and phosphorus, heat from, xxvii, 200. ---- and oxygen, new compound of, (hyperiodic acid) xxviii, 141.

Iolite, analyses of, xlvi, 383. ----, in Connecticut, xxii, 389. ----, in Massachusetts, xxxiii, 399. ----, decomposed varieties of, _C. U. Shepard_, xli, 354.

Iowa, mounds of various imitative shapes in, _S. Taylor_, xliv, 21.^f

Ipecacuana, analysis of, xvii, 385.

Ireland, geographical distribution of plants in, xxxi, 367.

Iridium, method of obtaining, from the platinum residue, _F. Wöhler_, xxvi, 371. ----, means of obtaining pure, _Fremy_, xlviii, 185.

Iris, affords a good test liquor, v, 408.

Iris Duerinckii, xlv, 176. ---- lacustris, iv, 57.

Iriscope, _Reade's_ experiments with, xl, 334.

Iron, action of, on ammonia, xviii, 146. ----, action of air and water on, _Mallet_, xliv, 355. ----, steel and cast iron, remarks on, xxxviii, 121. ----, method of bronzing, xxx, 173. ----, ---- of browning, ix, 168. ----, cementation of, by carburetted hydrogen, xxviii, 362. ----, cold short, method of purifying, xxx, 173. ----, chlorine in, _C. U. Shepard_, xliii, 359. ----, corrosion of, by salt water, xxxiii, 286. ---- when cutting, action of, in motion, on tempered steel, ix, 324; x, 127; xi, 384. ----, deoxidation of the salts of the peroxide of, _C. F. Schönbein_, xlix, 203. ----, experiments on two varieties made from the magnetic ores of Essex Co., N. Y., _W. R. Johnson_, xxxvi, 94.^f ----, manufacture of, by use of anthracite, xxxiii, 266. ----, ----, with the hot blast, xxix, 356. ----, ----, with the hot blast, _T. Clark_, xxxi, 180. ----, ----, by the hot and cold blast, comparative strength of, _Fairburn_, xxxiii, 292. ----, ----, ibid, comparative composition of, _T. Thomson_, xxxiv, 21. ----, ----, gas obtained by water applied in, _J. S. Dawes_, xxxv, 303. ----, oxides of, separation of, _J. Liebig_, xxiii, 379. ----, ----, effect of, on soil, xli, 159. ---- for railways, _D. Mushet_, xxxiv, 15. ----, separation of, from manganese, xiii, 173. ----, method of silvering, xxx, 169. ----, on the different states of, xiii, 159. ----, state of, in soils, _R. Phillips, Jr._, xlix, 394. ----, use of, for stereotyping, xxvi, 192. ----, sulphur in bar, xxviii, 71. ----, sulphuret of, formation of, xxxi, 74. ---- boat, iii, 371. ---- bridge in Prussia, xii, 197. ---- cement, xxx, 171. ---- conduit pipes, vi, 173. ---- furnaces, number in England and Scotland, xvi, 395. ---- mountain of Missouri, iii, 63. ---- ---- ibid, _J. T. Hodge_, xliii, 58. ---- spikes, experiments on the adhesion of, _W. R. Johnson_, xxxii, 34.^f ---- trade of Great Britain, amount of, xx, 176. ---- ---- of Wales, xx, 182. ---- works of Sweden, amount of exports from, in 1828, xviii, 173. ---- ---- of Glasgow, xli, 48. ---- ---- of Russia, improvements in, xxx, 181. ---- ---- of McIntyre, Essex Co., N. Y., _W. C. Redfield_, xxxiii, 303. ---- ----, statistics of, in the U. States, xxii, 179. ---- ----, ----, in Connecticut, _C. U. Shepard_, xxxiii, 157. ---- ----, ----, in Maryland, (1834,) xxvii, 15. ----, meteoric, see _Meteoric_. ----, native, see _Meteoric_. ---- from Bedford Co., Pa., supposed native, chemical examination of, xiv, 183. ---- ores, reduction of, _W. W. Mather_, xxi, 212. ---- ----, ----, in Connecticut, ii, 207.

_Localities._