Chapter M (5)

Salts, _T. Graham_ on the constitution of, xxxv, 300. ----, number of, xvii, 184. ----, fusibility of, xix, 379. ---- of ammonia, solvent and oxidating powers of, xviii, 255. ----, efflorescence of, prevented by the vapor of turpentine, xvi, 391. ----, haloid, certain existence of, in solution, demonstrated, _G. Wilson_, xxxviii, 118. ----, Harrodsburg, analysis of, _E. D. Smith_, i, 403. ----, metallic, on the decomposition of, _C. Matteucci_, xx, 187. ----, new series of double, formed by the action of sulphurous and nitrous acids upon the alkaline bases, _E. Fremy_, xlviii, 194.

Saltness of the ocean, v, 131. ---- ----, remarks on, _H. Humphreys_, xlix, 208. ---- ----, at different depths, xxiii, 10.

Saltpetre, method of making by sun's heat, discovered by _Baffi_, vi, 400. ----, formed from beat leaves, xv, 180.

_Sampson, W._, notice of a cetaceous animal, xxiii, 301.^f

San Lorenzo, Peru, fossils from, xxxviii, 201.

Sand, blown from shore, viii, 392. ----, rate of flowing, and angle of a heap of, xix, 190. ----, pressure of, xix, 190. ----, of Lake George, iv, 46. ----, white siliceous, of Staten Island, xxxvi, 21. ----, lightning tubes in, xx, 396.

Sand hills, iii, 27.

Sand pipes in chalk, cause of, _C. Lyell_, xxxviii, 122.

Sandstone, recent, on northern coast of Cornwall, _J. A. Paris_, i, 234. ----, new red, some account of, in United States, xli, 244. ----, ---- ----, of United States, dip due to oblique deposition, _H. D. Rogers_, xliii, 170.^f ----, new red, of Connecticut, cause of inclined position, _B. Silliman_, xlvii, 107. ----, ---- ----, of the Connecticut river, vi, 39.^f ----, ---- ----, fossil remains, including bones, in, ii, 146; vi, 43. ----, ---- ----, junction with greenstone, vi, 47. ----, or freestone of the Sugar Loaf Mountain, Maryland, xxvii, 21. ---- and breccia of the Capitol at Washington, i, 215, 216. ---- of Potsdam, N. Y., xxxvi, 25. ---- of Cornwall, England, i, 234. ----, footprints in, see _Footprints_.

Sandwich Islands, rocks and minerals of, xi, 11, 362; xvi, 345. ---- ----, notices of, _C. S. Stewart_, xi, 363; xx, 229. ---- ----, Hawaii, volcanic character of, xi, 1; xx, 228. ---- ----, ----, geological features of, _E. G. Kelley_, xl, 117.^f ---- ----, ----, Mauna Loa, character of, xvi, 346. ---- ----, Oahu, features of, _J. Ball_, xxviii, 15. ---- ----, ----, remark on the structure of, _J. D. Dana_, xliv, 407. ---- ----, great agitation of the sea at, xxxvii, 358. ---- ----, see farther under _Volcano_.

_Sanford, E._, notice of the calcareous tufa and tree of Chitteningo,
N. Y., xviii, 354.

_Sang, E._, relation between a machine and its model, xxiv, 264. ----, rapidity of motion of railway cars, xxxv, 197.

Sanguinaria canadensis, xlix, 130.

Sanicula marilandica, xi, 174.

Santee, high hills of, iii, 2.

Saponaceous vegetables, _Bussy_, xxiv, 381.

Sappar, fusion of, ii, 291. ----, see farther, _Kyanite_.

Sapphire in the emery of Naxos, xiv, 205. ---- in Connecticut, vi, 219. ---- of New Jersey, xiii, 380; xxi, 319. ---- in North Carolina, iii, 4, 229.

Saratoga high rock spring, description of, _J. N. Steel_, xvi, 343.^f ---- water, analysis of, _J. Steel_, xxi, 182; xxxvi, 8. ---- ----, ----, _J. F. Dana_, xxxvi, 8. ---- ----, iodine in, xvi, 217, 242. ---- ----, bromine in, xviii, 142. ---- Lake, and its environs, with Snake Hill, _J. H. Steele_, ix, 1.^f ----, oolitic formation of, _J. H. Steele_, ix, 16.^f ---- powders, xvi, 369.

Sarcophagus, ancient, iii, 390.

Sargasso weeds, xx, 181.

Sarracenia, remarks on the genus and species of, _H. B. Croom_, xxvi, 316. ---- pulchella, xxv, 75.

_Sartwell, H. P._, meteorological observations at Penn Yan, 1834,
xxviii, 187.

Sassarubrin, a resin from oil of sassafras, _R. Hare_, xxxi, 282, 285.

Satin spar in New Jersey, ii, 197. ---- ---- in New York, iv, 44.

Saturn, five or more rings about, xxxvii, 373. ----, ibid, approximate dimensions of, xxxvii, 374. ---- ring, eccentricity of, xvii, 162. ----, observations on the rings of, _L. F. Wartmann_, xxv, 191. ----, micrometrical observations on, xiii, 172. ---- and his rings, observations on, at Rome, _P. F. de Vico_, xliv, 383. ----, sixth satellite of, xxxiv, 207.

Sault St. Marie, canal around, xlvi, 213.

Saurian remains, Hawkins's collection of, xxix, 367. ---- ----, in the alum shale of England, xxix, 364. ---- ---- of Tilgate Forest, _G. A. Mantell's_ work and memoirs on, xli, 205; xliii, 189. ---- ---- _R. Owen's_ Report on British, xlii, 328.

Saurians in magnesian conglomerate, xxviii, 389. ----, new, _S. Stutchbury_, xxxi, 364. ----, see farther under _Zoology_.

Saurocephalus, of _R. Harlan_, xxvii, 353.

Saurodon, xviii, 246.

_Savage, T. S._, on African insects, xl, 387.

Savings Bank of Geneva, xxiv, 209.

Saw, moved by mechanism, vii, 198. ----, acceleration of, at night, viii, 393. ---- machine, rotary, _R. Eastman_, v, 146.^f

Saxifraga Careyana, xlii, 32.

_Saxton, J._, electrographic gilding by, xli, 402.

_Say, Thos._, observations on some zoophytes, shells, &c., principally fossil, i, 381; ii, 34. ----, American Conchology of, noticed, xxi, 179. ----, notes on Herpetology, i, 256. ----, obituary notice of, xxvii, 393.

Scandinavians, early discovery of America by, xvii, 410.

Scandinavian coast, elevation of, xlvii, 184.

_Scanlan, R._, on commercial carbonate of ammonia, xxxv, 297. ----, nitrate of silver not blackened by light, xxxv, 298.

Scapolite, pink, of Bolton, formula of, xlvii, 418. ---- in Connecticut, viii, 258; xiv, 226. ---- in Massachusetts, vii, 53, 252; viii, 233; ix, 47; xiv, 226. ---- in New Jersey, vi, 250. ---- in New York, ix, 41, 402; xix, 225; xxi, 325; xxv, 348. ---- in Pennsylvania, viii, 239; x, 220, 221, 223; xiv, 13.

_Scarpa_, death of, xxv, 184.

_Schaeffer, G. C._, on the meteors of August, 1837, and November, 1832, xxxiii, 133. ----, meteor of August, 1840, xxxix, 332.

_Schaeffer, F. C._, peat of Dutchess Co., N. Y., i, 139. ----, localities of minerals, i, 236.

Schænus effusus, northern limit of, _H. B. Croom_, xxvi, 315.

_Scheerer_, on aventurine feldspar, xlix, 394. ----, on polycrase and malacrone, xlix, 394.

_Schenck_, transit of Mercury, May, 1832, xlix, 148.

_Schimpfer_, theory of boulders quoted and questioned, xxxvi, 331, 332.

Schistose structure a result of crystallization, _J. D. Dana_, xlv, 105. ---- ---- in some volcanic rocks, _J. D. Dana_, xlv, 105.

_Schlechtendal, D. F. L. von_, Linnæa of, noticed, xxxix, 178; xl, 392.

_Schley, G._, on steam as a conductor of electricity, xxvi, 206.

_Schlossberger, F._, on the composition of fungi, xlix, 393.

_Schlotheim, E. F. von_, notice of, xxxvii, 128.

_Schmidt, G._, notice of, iii, 79.

_Schnederman_, on a salt of platinum, xliv, 274.

Schoharie, mineralogy of, xxviii, 172^f; 381.

_Schönbein, C. F._, on ozone, xlix, 195. ----, on the deoxidation of the ferridcyanide of potassium, and the salts of the peroxide of iron, xlix, 203. ----, on ozone, a supposed cause of odor attending electrical discharges, xli, 44.

Schools for the poor in Italy, iii, 375. ----, Lancasterian, in France, iv, 199, 389. ----, see farther under _Education_.

_Schoolcraft, H. R._, native copper of Lake Superior, with a figure, iii, 201. ----, copper mine on Lake Superior, vii, 43. ----, lead mines of Missouri, with geological and miscellaneous notices, iii, 59. ----, on a petrified tree, near Lake Michigan, iv, 285. ----, memoir on a fossil tree, notices of, by John Adams, James Madison and Thomas Jefferson, v, 23, 25. ----, on the prints of human feet in limestone, v, 223^f; xliii, 22. ----, localities of minerals, vii, 46. ----, notice of a discourse by, xx, 166. ----, letter on the tide of Lake Superior, xx, 213. ----, address on the North American Indians, xxiv, 190. ----, action of the North American Lakes, xliv, 368.

Schorl, see _Tourmaline_.

_Schröder, J. F._, address by, noticed, xxi, 181.

_Schweigger-Seidel_, general electric formula, xxxv, 356.^f

Schweinfurt green, vii, 386.

_Schweinitz, L. D. de_, monograph of the genus Viola, v, 48. ----, list of the rarer plants near Easton, Penn., viii, 267. ----, obituary notice of, xxvi, 218.

_Schweitzer, G._, analysis of seawater near Brighton, xxxviii, 12.

Science, list of men of, who have held offices under government, xx, 172. ---- in the South, xxi, 188. ---- in the West, xxi, 187.

Scientific publications, recent, in the United Stales, xxvi, 208, 397; xxvii, 395. ---- Journals in Great Britain, xxviii, 365.

Sciuri, see under _Zoology_.

Sclerotic bones of the eyes of birds and reptiles, xxxiii, 289.

_Scoresby, W._, magnetical investigations, xlviii, 33. ----, improvements by, in magnetic apparatus, xxxiv, 398.

Scotacks, tribe of, in Hungary, v, 384.

Scotland, population of, xxiv, 211.

Scott spring, Virginia, analysis of, xliv, 409.

Scratches, diluvial, caused by ice, according to _L. Agassiz's_ theory, xlii, 350. ----, ----, theory of, _E. Hitchcock_, xli, 255. ----, ----, in the United States, xli, 174. ----, ----, ----, belong to two systems, _W. C. Redfield_, xlv, 333. ----, ---- ----, on rocks, a few localities of, xvii, 408. ----, ----, in Maine, _C. T. Jackson_, xxxvi, 153. ----, ----, in New Hampshire, _O. P. Hubbard_, xxxiv, 107. ----, ----, ----, _C. T. Jackson_, xlv, 146. ----, ----, ----, on the rocks at Hebron, xxii, 166. ----, ----, in western New York, _G. E. Hayes_, xxxv, 191. ----, ----, ----, xxxvi, 39. ----, ----, ibid, _C. Dewey_, xliv, 146. ----, ----, on the rocks near New York city, _J. E. Dekay_, xvi, 357. ----, ----, on the rocks, in Sullivan Co., N. Y., _W. A. Thompson_, xxiii, 243. ----, ----, in Pennsylvania, _H. D. Rogers_, xliii, 180. ----, ----, in Ohio, (?) at Sandusky Bay, vi, 179. ----, ----, in Indiana, _J. T. Plummer_, xliv, 296. ----, ----, in the rocks of the Allegany range, xx, 124.

Screws, manufacture of, in Connecticut, ii, 208.

_Scrope, G. P._, on Volcanoes, review of, xiii, 106. ----, letter to the editor on volcanoes in North America, xiii, 190. ----, descriptive arrangement of volcanic rocks, xv, 28.

Sculpture, by Canova, iv, 371, 389.

Sea and land, relative level of, as regards the tides, xxxi, 335. ----, waves, currents and tides, v, 131. ----, ----, ----, see farther under _Ocean_. ----, depth of, v, 130. ----, ----, not determinable by the echo, _C. Bonnycastle_, xxxviii, 161. ----, deep soundings in, by the French ship Venus, xl, 407. ----, encroachments of, near New York, xxxvi, 16. ----, action of, xxi, 21. ---- and land breezes, causes of, _W. C. Redfield_, xxxiii, 65. ----, remarkable agitations of, at the Sandwich Islands, _T. C. B. Rooke_, xxxvii, 358. ----, Dead, level of, xl, 213; xlii, 214. ----, ----, analysis of the waters of, xiii, 395; xlviii, 10. ----, ----, account of, _J. D. Sherwood_, xlviii, 1.

Sea-serpent, remarks concerning, _J. Bigelow_, ii, 147. ----, xi, 196. ----, on the existence of, xii, 375. ----, xxviii, 372.

Sea-serpentism, history of, _S. L. Mitchill_, xv, 351.

_Seal, T._, on beryl, iv, 39.

Sealing wax, method of making, xxi, 150. ---- ----, improvement in, xxviii, 148. ---- ----, mode of separating from old letters, xxiii, 200.

Seawater near Brighton, analysis of, _G. Schweitzer_, xxxviii, 12. ----, Black Sea, analysis of, xx, 188. ----, quantity of salt in, _C. Daubeny_, xxxvi, 188. ----, potash in, iii, 371. ----, absorption of light by, v, 134. ----, marine animals in, v, 134. ----, color of, vi, 198; xxix, 237. ----, cause of color of, xxvi, 65.^f ----, color of, due in part to iodine and bromine, xvii, 170. ----, density at different depths in the Mediterranean, xvii, 364. ----, distillation of, iii, 381. ----, distilled, use of, i, 172. ----, luminousness or phosphorescence of, v, 133; xvii, 209; xviii, 166, 187; xxxv, 372; xxxvi, 208. ----, saltness of ocean, v, 131. ----, ----, _H. Humphreys_, xlix, 208. ----, ----, at different depths, xxiii, 10. ----, specific gravity, v, 129. ----, temperature in different parts, v, 129; xxv, 130. ----, ----, at great depths, xvii, 295. ----, ----, at different depths, xxiii, 10.

Seaweeds of the Atlantic, xx, 181.

_Sedgwick, A._, Cambrian system of, xxxvii, 220. ----, address before the Geological Society of London, xxi, 186. ----, letter to R. Elton, xlvi, 403.

Sediment from the Mersey, xxxiii, 269.

_Seely, L._, garnet locality, iii, 241.

Segregation theory of veins, objections to, from facts in Maine,
_C. T. Jackson_, xxxvi, 148.

_Seiber's_ Journey into Abyssinia, announced, iv, 383.

_Selby, P. J._, notice of, xxxvii, 164.

Selenite, see _Gypsum_.

Selenium, a new metal, i, 310.

Seleniuret of lead, xviii, 391; xix, 369. ---- ---- and mercury, xviii, 391. ---- of palladium, xix, 369.

Selloa nudata, v, 300.

Seminole Indians, notice of, ix, 132.

Septaria, large, xxvi, 217.

Serbian, or miloschin, xlii, 386.

Serapis, temple of, account of the changes of level in, _C. Babbage_,
xxvii, 408.

Series, new algebraic, vii, 278; viii, 131; ix, 98, 293.

Serpent rock of Lake Huron, iii, 258.^f

Serpentine, metamorphic, through the agency of heated waters, xlv, 120. ----, crystallized, at Warwick, N. Y., ix, 242. ----, in Tenos, Grecian Archipelago, xxxi, 176. ---- of the vicinity of Hudson's Bay, xvii, 12. ----, in Canada, viii, 68. ----, in Connecticut, vi, 227. ----, in Delaware, v, 240. ----, in Maryland, xviii, 80; xxiv, 349; xxvii, 25. ----, in Massachusetts, i, 114, 137; ii, 236; iii, 238; v, 268; vi, 227; viii, 49; ix, 43; x, 213; xii, 260; xxii, 29. ----, in New Jersey, ii, 195; iv, 16; v, 29. ----, in New York, vii, 57; ix, 39, 42; xix, 225, 228; xxv, 349. ----, in Pennsylvania, viii, 237; xiv, 3, 10, 12. ----, in Rhode Island, viii, 225, 228; ix, 51. ----, in Vermont, iii, 76; v, 40, 272; vi, 227, 249; xiii, 200; xxxv, 390; (marble) xxxviii, 198.

_Serres, Marcel de_, on some new bone caves, xxi, 56.

_Serullas, G. S._, elected a member of the French Academy, xviii, 185. ----, on iodic acid, and morphine, xx, 184. ----, obituary notice of, xxiii, 371.

Sewell Mountains, xxix, 93.

Sewers, furnace for ventilating, vii, 177. ----, cleansing of, xviii, 161.

Sexes, proportion of, viii, 376.

_Seybert, A._, notice of, i, 37.

_Seybert, H._, analysis of the chrysoberyl, of Haddam, Ct., viii, 105. ----, ---- of bog iron ore from New Jersey, viii, 298. ----, ---- of the Maclureite, v, 336. ----, ---- of the melanite of Franklin furnace, N. Jersey, viii, 300. ----, ---- of pyroxene from the Franklin iron-works, vii, 145. ----, ---- of sulphuret of molybdenum, iv, 320. ----, ---- of chromic iron, iv, 321. ----, ---- of a manganesian garnet, vi, 155. ----, ---- of the glassy actinolite of Concord, Penn., vi, 331. ----, ---- of tabular spar, pyroxene and colophonite, from Willsboro', N. Y., v, 113. ----, reclamation of the discovery of fluoric acid in chondrodite, vi, 168, 356. ----, analysis of a meteorite, xvii, 326.

Seybertite, a new mineral, _T. G. Clemson_, xxiv, 171.

Seyssel cement, xxxiv, 383.

Shad-fisheries of the Delaware, notice of, _S. Howell_, xxxii, 134.

Shaquaw, Cherokee, prophecy of, iii, 39.

Shark, fossil, xvii, 289. ----, see farther under _Zoology_.

Sharpening of razors and other cutting instruments, method of, xxi, 165.

_Sharpless, J. T._, description of the American wild swan, xxii, 83.^f

Sheathing of ships, _H. Davy's_ experiments on, xvii, 244. ---- for ships, of leather, xv, 365.

Sheep, relative value of different kinds of food for, xxiii, 393. ----, merino, price of, in France, v, 189.

_Sheffey, H. W._, ice at the bottom of a river, xxxvi, 186.

Shelburne Falls, Mass., vii, 16.

_Sheldon, W._, on tanning, &c., i, 312.

Shells, analyses of, _W. B. Rogers_, xxvi, 361. ----, fancy work from, xxxii, 257. ----, as a circulating medium, xxxii, 258. ----, recent and fossil, see under _Zoology_.

Shell fish in Ohio, disease among, _S. P. Hildreth_, xxxii, 97. ---- rock, of the Florida coast, ix, 123. ---- ---- of St. Augustine, remarks on, xxxv, 61. ---- ---- of St. Croix, xxxv, 71.

_Shepard, C. U._, localities of minerals, viii, 235. ----, notice of minerals, xii, 156, 161. ----, measurement of topaz, xii, 158.^f ----, Kyanite and Sillimanite, on the identity of, xii, 159.^f ----, on native iron, xii, 155; xiv, 183; xvii, 140. ----, on phosphate of manganese, tabular spar, &c., xiii, 196. ----, measurement of crystals of zircon, xiii, 392.^f ----, Columbite, stanniferous, in Massachusetts, xvi, 220.^f ----, soda alum, of Milo, analysis of, xvi, 203; xxii, 387. ----, on ferro-silicate of manganese, xvii, 142.^f ----, on new localities of minerals, xvii, 144. ----, mineralogical journey in the northern parts of New England, xvii, 353^f; xviii, 126^f, 289.^f ----, on the Deweylite, xviii, 81. ----, spathic iron mine of New Milford, xix, 311.^f ----, letter to, on the copper ore of Strafford, Vermont, xxi, 383. ----, mineralogy and geology of Orange Co., N. Y., and Sussex Co., N. J., xxi, 321.^f ----, on brown lead ores, xxii, 307. ----, on datholite and iolite in Connecticut, xxii, 389. ----, geological observations upon Alabama, Georgia and Florida, xxv, 162. ----, thermal waters of Suannee, Georgia, producing a silicification of fossils, xxv, 165. ----, on Ball's cave, xxvii, 368. ----, analysis of the waters of the Gray Sulphur spring, Virginia, xxx, 100. ----, microlite, a new mineral, xxvii, 361. ----, ----, chemical examination of, xxxii, 338. ----, ---- not identical with pyrochlore, xliii, 116. ----, on the strontianite of Schoharie, N. Y., xxvii, 363.^f ----, description of Edwardsite, xxxii, 162. ----, Eremite, a new mineral, xxxii, 341.^f ----, copper mines of Connecticut, xxxiii, 160. ----, iron mines and furnaces of Connecticut, xxxiii, 155. ----, second locality of topaz in Connecticut, xxxiv, 329. ----, calstronbaryte, a new mineral species, xxxiv, 161. ----, calstronbaryte, not entitled to be considered a mineralogical species, xliii, 366. ----, phenacite in New England, xxxiv, 329. ----, phenacite from Goshen, not phenacite, xliii, 366. ----, Warwickite, a new mineral, xxxiv, 313; xxxvi, 85. ----, geology of upper Illinois, xxxiv, 134.^f ----, Danburite, a new mineral, xxxv, 137. ----, note to _F. Wöhler's_ analysis of cobalt ores, xxxvi, 332, 333. ----, identity of Edwardsite with Monazite, xxxix, 249. ----, Lederite, a supposed new mineral, xxxix, 357^f; xlviii, 176. ----, on two decomposed varieties of iolite, xli, 354. ----, euclase in Connecticut, xliii, 366. ----, Washingtonite, a new mineral, xliii, 364.^f ----, description and analysis of the meteorite of Virginia, xvi, 191.^f ----, analysis of the Texas meteoric iron, xvi, 217. ----, ---- of meteoric iron of Buncombe Co., North Carolina, xxxvi, 81. ----, ---- of a Wisconsin meteorite, xxxix, 254. ----, account of the meteoric iron of Oswego, with an analysis, xl, 366.^f ----, ibid, of Guilford Co., N. C., with an analysis, xl, 368. ----, analysis of meteoric iron from Tennessee, xliii, 354. ----, on phosphate of lime in the Virginia meteoric stone, xlv, 102. ----, meteoric (native) iron of Canaan, Ct., analysis of, xii, 155. ----, chlorine in meteoric iron, xliii, 359. ----, experiments with Henry's magnet, xx, 201. ----, extracts from foreign Journals, xx, 197. ----, notice by, of the transactions of the Geological Society of France, for 1833, xxviii, 283. ----, notice of the report by, on the geology and mineralogy of Connecticut, xxxii, 399; xxxiii, 151. ----, notice of Travels in the Alps, xxviii, 296. ----, Mineralogy, notice of, xxi, 389; xxii, 395; xxviii, 374; xxxv, 187. ----, reply to _A. Del Rio's_ observations on C. U. Shepard's Treatise of Mineralogy, xxvii, 312; xxxi, 131. ----, _Del Rio's_ reply to, xxx, 384. ----, Mineralogy, second edition, review of, xlvii, 333, 346. ----, reply to a notice of his mineralogy, xlviii, 168. ----, private school of mineralogy, xxv, 431; xxvi, 215.

_Shepherd, F._, on the fall of a meteorite, in Missouri, xxxvii, 385. ----, experiments on the solar spectrum, xlviii, 137.

_Sherwin, T._, Algebra of, noticed, xliii, 190.

_Sherwood, H. H._, discoveries by, in magnetism, xxxiv, 210.

_Sherwood, J. D._, on the valley of the Jordan and the Dead Sea,
xlviii, 1.

Shetland Islands, minerals of, iv, 25. ----, New South, minerals from, xii, 161.

_Shillaber, J._, description of a mermaid, vi, 195.

Ships, best form for, _J. S. Russel_, xxxv, 290. ----, sheathing for, of leather, xv, 365. ----, fastenings and sheathings for, xvi, 180. ----, ----, _H. Davy's_ experiments on, xvii, 244. ----, improvements in the keels of, _O. Lang_, xxxiv, 35. ----, lightning conductors for, xxi, 347. ----, steam, without masts, xxxv, 332.

Shooting stars, in the years 1768, and 686 B.C.; A.D. 7, 532, 558, 585, 611, 744 or 747, 750, 764, 765, 829, 855, 899, 901, 902, 912 or 913, 931 or 934, 935, 1029, 1060, 1090, 1094, 1095, 1096, 1106, 1122, 1199, 1202, 1243, 1366, 1398, 1399, 1635, 1636, 1743, 1799, 1803, 1832, 1833, notices of, _E. C. Herrick_, xl, 349 to 363. ---- ----, of August in the years 1800, 1815, 1819, 1822, 1836, notices of, _E. C. Herrick_, xxxvii, 335, 336. ---- ----, of December, 1692, _E. C. Herrick_, xlii, 400. ---- ----, of December, 1798, _H. W. Brandes_, xxxv, 361. ---- ----, of November, 1799, noticed by Humboldt, _S. P. Hildreth_, xxvi, 87. ---- ----, ----, ibid, _E. C. Herrick_, xl, 363. ---- ----, of June, 1799, 1812, 1817, _E. C. Herrick_, xlii, 201. ---- ----, ----, 1777, _Messier_, xxxiii, 364. ---- ----, of April 20, 1803, _D. Olmsted_, xxvi, 135. ---- ----, ----, _E. C. Herrick_, xxxvi, 358; xl, 363. ---- ----, of November, 1803, a large meteor in England, xxvi, 137. ---- ----, of December, 1809, _E. C. Herrick_, xxxvi, 357. ---- ----, of December, 1824, _E. C. Herrick_, xxxvi, 357. ---- ----, of November, 1831, _Berard_, xxx, 374. ---- ----, of November, 1832, notices by _D. Olmsted_, xxvi, 134, 136. ---- ----, ----, in Russia, xxxi, 189. ---- ----, ----, off Pernambuco, _G. C. Schaeffer_, xxxiii, 133. ---- ----, ----, _Gautier_, xxxiii, 364. ---- ----, ----, in England, xxvi, 136. ---- ----, ----, in the Tyrol, xxvi, 134. ---- ----, ----, at Mocha on the Red Sea, xxvi, 136. ---- ----, of November, 1833, _E. Hitchcock_, xxv, 354. ---- ----, ----, _D. Olmsted_, xxv, 363; xxvi, 132; xxix, 376. ---- ----, ----, _A. C. Twining_, xxvi, 320.^f ---- ----, ----, _A. D. Bache_, xxix, 383. ---- ----, of November, 1834, _A. D. Bache_, xxvii, 335; xxviii, 305; xxix, 383. ---- ----, ----, _A. C. Twining_, xxvii, 339. ---- ----, ----, _D. Olmsted_, xxvii, 417; xxix, 168. ---- ----, ----, seen in California, xxxii, 195. ---- ----, of November, 1835, _D. Olmsted_, xxx, 375. ---- ----, ----, Cape of Good Hope, _J. F. W. Herschel_, xxx, 374. ---- ----, of November, 1836, _D. Olmsted_, xxxi, 386. ---- ----, ----, at Hingham, Mass., _J. L. Russel_, xxxii, 392. ---- ----, ----, foreign accounts of, xxxii, 181. ---- ----, of August, 1837, _E. C. Herrick_, xxxiii, 176, 354, 401; xxxiv, 180. ---- ----, ----, _G. C. Schaeffer_, xxxiii, 133. ---- ----, of November, 1837, _D. Olmsted_, xxxiii, 379. ---- ----, of April, 1838, _E. C. Herrick_, xxxiv, 398. ---- ----, of August, 1838, _E. C. Herrick_, xxxv, 167. ---- ----, of November, 1838, _D. Olmsted_, xxxv, 368. ---- ----, ----, _E. C. Herrick_, xxxv, 362. ---- ----, ----, at Cambridge, Mass., _J. Lovering_, xxxv, 323. ---- ----, ----, in Europe, xxxvi, 179. ---- ----, of December, 1838, _E. C. Herrick_, xxxv, 361; xxxvi, 355; xlii, 398. ---- ----, ----, in Europe, xli, 403; xlii, 398. ---- ----, of April, 1839, _E. C. Herrick_, xxxvi, 361. ---- ----, of August, 1839, _E. C. Herrick_, xxxvii, 325; xxxviii, 203. ---- ----, ----, at Canton, China, _P. Parker_, xxxviii, 301. ---- ----, of October, 1839, _E. C. Herrick_, xxxviii, 377. ---- ----, of November and December, 1839, _E. C. Herrick_, xxxviii, 377. ---- ----, of November, 1839, _D. Olmsted_, xl, 202. ---- ----, of August, 1840, _E. C. Herrick_, xxxix, 328, 332; xl, 201. ---- ----, of November, 1840, nothing unusual, _D. Olmsted_, xl, 202. ---- ----, of October and December, 1840, _E. C. Herrick_, xl, 203. ---- ----, of April, 1841, _E. C. Herrick_, xlii, 397. ---- ----, of August, 1841, _E. C. Herrick_, xli, 399; xlii, 202. ---- ----, of August and November, abstract of _S. C. Walker's_ paper on, xlii, 401. ---- ----, of November, 1841, xliii, 399. ---- ----, of April, 1842, _E. C. Herrick_, xliii, 212. ---- ----, of August, 1842, _E. C. Herrick_, xliii, 377; xliv, 208. ---- ----, of August 22, 1842, seen in the day time, at Winchester, Va., _C. Chase_, xliv, 418. ---- ----, of November, 1842, _E. C. Herrick_, xliv, 209. ---- ----, of December, 1842, _E. C. Herrick_, xliv, 210. ---- ----, of April, 1843, _E. C. Herrick_, xlv, 230. ---- ----, of August, 1844, _E. C. Herrick_, xlviii, 316. ---- ----, ----, _S. R. Williams_, xlviii, 320. ---- ----, see farther under _Meteor_.

---- ----, attributed to Auroral vapor, xx, 153. ---- ----, _Arago_, hypothesis of a zone of asteroids revolving about the sun, xxxiii, 363. ---- ----, ----, origin of, beyond the atmosphere, xxx, 373. ---- ----, _Bache, A. D._, on the non-occurrence of a shower of meteors, Nov. 13, 1834, xxvii, 335; xxviii, 305; xxix, 383. ---- ----, _Benzenberg, J. F._, and _Brandes, H. W._, made the first observations relative to the distances, velocities, &c., xxxv, 366. ---- ----, _Brandes, H. W._, investigation of, xv, 168; xxviii, 97; xxxv, 231, 232, 366. ---- ----, ----, number, duration, course of, &c., xv, 168; xxviii, 97; xxxiii, 361. ---- ----, ----, mode of calculation respecting, xxviii, 98.^f ---- ----, ----, table of, calculated, xxviii, 101. ---- ----, _Clarke, W. A._, on the origin of, xxx, 369. ---- ----, _Erman_, origin of, cosmical, xl, 53. ---- ----, ----, motion and mode of revolution, xl, 53. ---- ----, ----, velocity, perihelion distances, position, xl, 53, 54. ---- ----, _Fisher, F. G._, origin of, atmospheric, and connected with electricity, xxviii, 289. ---- ----, _Gruithuisen_, origin of, beyond the earth's atmosphere, from metallic vapors, xxviii, 290. ---- ----, _Halley, E._, suggested the determination of longitude by means of, xlii, 399. ---- ----, _Herrick, E. C._, on the number of showers of, in a year, xxxiii, 360; xxxv, 366; xxxix, 334. ---- ----, ----, facts establishing the August period, xxxiii, 177, 354. ---- ----, ----, observations on the August period, in early times, xxxvii, 337; --in 1800, 1815, 1819, 1822, 1836, xxxvii, 335, 336; --in 1837, xxxiii, 176, 354, 401; xxxiv, 180; --1838, xxxv, 167; --1839, xxxvii, 325; xxxviii, 203; --1840, xxxix, 328, 332; xl, 201; --1841, xli, 399; xlii, 202; --1842, xliii, 377; xliv, 208; --1844, xlviii, 316. ---- ----, ----, characteristics of the August shower, xxxiii, 359; xxxix, 330. ---- ----, ----, cycle of the November shower, xxxv, 367; xl, 365. ---- ----, ----, return of the November shower probable in 1867, xl, 365. ---- ----, ----, observations on the November showers, of former periods, xl, 363; --in 1838, xxxv, 362; --in 1839, xxxviii, 377; --1842, xliv, 209. ---- ----, ----, notices of observations in December, 1692, xlii, 400; --1809, xxxvi, 357; --1824, xxxvi, 357; --in 1838, xxxv, 361, 365; xxxvi, 355; xlii, 398; --in 1839, xxxviii, 377; --in 1840, xl, 203; --1842, xliv, 210. ---- ----, ----, cycle of the April shower, xxxv, 367; xl, 365. ---- ----, ----, observations on April showers, of former periods, xxxvi, 361; --in 1803, xxxvi, 358; --1838, xxxiv, 398; --1839, xxxvi, 361; --1841, xlii, 397; --1842, xliii, 212; --1843, xlv, 230. ---- ----, ----, notices of observations in June, xxxix, 334; xlii, 201. ---- ----, ----, notices of observations in October, 1839, xxxviii, 377; --1840, xl, 203. ---- ----, ----, notices of observations in January, xxxix, 334. ---- ----, ----, remarks on the zone-theory of, xxxiii, 363; xxxv, 367. ---- ----, ----, on the supposed connexion of, with the Zodiacal light, xxxiii, 364; xxxv, 368; xxxix, 331. ---- ----, ----, nature, motions and distance of, xxxiii, 360; xxxv, 366. ---- ----, ----, average daily number, xxxiii, 362. ---- ----, ----, average hourly number, xxxiii, 362; xxxv, 365. ---- ----, ----, apparent sizes, colors, &c., xxxiii, 360; xxxix, 330. ---- ----, ----, hour of maximum in August, xxxix, 330. ---- ----, ----, radiant point, xxxvii, 328; xxxix, 330. ---- ----, _Hitchcock, E._, magnetic or Auroral origin of, suggested, xxv, 355. ---- ----, ----, observations in November, 1833, xxv, 354. ---- ----, _Ideler, J. L._, conclusions as to the atmospheric origin (vegetable and animal) of, xxviii, 289. ---- ----, _Laplace, P. S._, remark as to the prevailing ignorance on, xxviii, 59. ---- ----, _Loomis, E._, on the sizes, heights, paths, course and velocities of, xxviii, 95; xxxv, 231. ---- ----, ----, apparent direction of, dependent on the motion of the earth, xxviii, 104. ---- ----, ----, on the course, velocity, height and size of the meteor of May 18, 1838, mathematically calculated, xxxv, 223. ---- ----, _Lynn, G._, first laid down a method for determining longitude by, xlii, 399. ---- ----, _Maskelyne, N._, on determining longitude by, xlii, 399; xliv, 374. ---- ----, _Messier_, on some meteors seen crossing the sun's disk, June, 1777, xxxiii, 364. ---- ----, _Olmsted, D._, on the November shower of 1833, xxv, 363; xxvi, 132^f; xxix, 376. ---- ----, ----, notices of observations on, in November, 1832, xxvi, 136; --1834, xxvii, 417, xxix, 168; --1835, xxx, 374; --1836, xxxi, 386; --1837, xxxiii, 379; --1838, xxxv, 368; --1840, xl, 202. ---- ----, ----, November period continued in 1837, xxxiii, 379. ---- ----, ----, November period passed, in 1838, xl, 202. ---- ----, ----, ibid, length of, and cycle, xl, 203. ---- ----, ----, ibid, time of maximum number and duration of shower in, xxv, 386, 402; xxvi, 141; xxxiii, 381. ---- ----, ----, ibid, whole number, xxv, 389. ---- ----, ----, ibid, height, course of, and direction, xxv, 392, 393; xxvi, 144; xxxiii, 381. ---- ----, ----, ibid, sound from, xxv, 392, 404. ---- ----, ----, ibid, apparent origin and radiation, xxv, 394, 405; xxxiii, 386, 390. ---- ----, ----, ibid, velocity, xxvi, 147^f, 149; xxxiii, 383. ---- ----, ----, ibid, size, xxv, 408; xxvi, 155; xxxiii, 382. ---- ----, ----, ibid, matter supposed to have come from, xxv, 396, 408. ---- ----, ----, ibid, Auroral appearances attending, xxv, 397, 410. ---- ----, ----, ibid, concurrent phenomena, xxv, 398, 401; xxvi, 160. ---- ----, ----, ibid, electrical and magnetic phenomena accompanying, xxv, 396, 409. ---- ----, ----, origin of, beyond the atmosphere, xxvi, 140; xxix, 377. ---- ----, ----, combustible nature of, and other characters, xxvi, 151, 161; xxix, 377. ---- ----, ----, relation to the solar system, and orbital motion of supposed shooting star nebula, xxvi, 163^f; xxix, 377. ---- ----, ----, connection with Zodiacal light, xxvi, 172; xxix, 378; xxxiii, 390.^f ---- ----, ----, remarks in reply to objections to his theory of, xxix, 380; xxx, 370.^f ---- ----, _Quetelet_, report of desultory remarks at the British Association of 1833, xxviii, 59. ---- ----, ----, general average per hour, xxxv, 365. ---- ----, _Twining, A. C._, on the meteors of November, 1833, xxvi, 320^f;--1834, xxvii, 339. ---- ----, ----, examination of D. Olmsted's views on, xxvi, 321. ---- ----, ----, time and maximum of shower, November, 1833, xxvi, 323. ---- ----, ----, the radiant point fixed independent of the earth's rotation, xxvi, 325, 347; xxvii, 339. ---- ----, ----, nature and cause of, xxvi, 335. ---- ----, ----, height of several calculated, xxvi, 337.^f ---- ----, ----, velocity of, xxvi, 346. ---- ----, ----, character of orbital motion and period of, xxvi, 348, 349. ---- ----, ----, _Walker, S. C_., on the showers of, in August, xl, 51; xlii, 401. ---- ----, ----, ibid, radiant point and other observations, xl, 51.

_Shortrede, R._, logarithmic tables of, noticed, xlviii, 208.

Shower of red matter like blood in Tennessee, a hoax, xliv, 216,
(see xli, 403.)

Siamese twins, an account of, _J. C. Warren_, xvii, 212.^f

_Sibbald, R._, notice of, with an enumeration of his works, xxxvii, 138.

Siberia, steppes, xvii, 23. ----, depth of the frozen ground in, xxxvi, 210. ----, temperature of the ground in, xxxvi, 205. ----, notice of Humboldt's expedition to, xvii, 405.

Siberian elm, notice of, xx, 377.

_Sibley, J._, fact from a letter by, relating to the Texas meteoric
iron, viii, 221.

Sicily, earthquakes of 1823, ix, 216. ----, geological structure of, _F. Ferrara_, viii, 201. ----, marbles of, viii, 203. ----, minerals of, viii, 203. ----, geology of, _C. Daubeny_, x, 230.^f ----, volcanic character of, xiii, 272. ----, fountain of Cyana in, xxvii, 82.

Sida abutilon, affording a material for cordage, xxi, 37.

Sidero-graphite, _J. Torrey_, ii, 176, 370.

Sideroscope, xv, 177.

_Siebold's_ Flora Japonica, noticed, xxxix, 175.

Sienite, see _Syenite_.

Sigillaria, generic characters, vii, 180. ---- marineria, xxxi, 30.^f ---- in the coal fields near Liverpool, xlv, 403. ----, remarks on the relation of, to Stigmariæ, xlix, 227.

Signals, iii, 382. ----, telegraphic, by rockets, v, 189.

Signs, observations on the language of, viii, 348.

Silene axillaris, vii, 62. ---- regia, xi, 182.

Silex, fusion of, ii, 292. ----, solubility of, xiv, 385; xli, 60. ----, gelatinous, _Guillemin_, xiv, 391. ----, in solution, in geodes, viii, 282. ----, ----, ibid, _G. Bischof_, xlix, 396. ----, hydrate of, xv, 390. ---- in plants, xxxiv, 27.

Siliceous buhr millstone deposits of Ohio, xxix, 142. ---- ----, hot water origin, xxix, 45. ---- minerals, on the treatment of, by carbonated alkalies, xviii, 404. ---- ----, solution of, by steam, xlviii, 397. ---- glass from burning hay, xix, 395; xxiv, 174. ---- corals, i, 141. ---- shells, corals and wood of Antigua, _S. Hovey_, xxxv, 79; --due to siliceous solutions, 82. ---- Sinter of the Azores, _J. W. Webster_, iii, 391. ---- springs and deposits in India, _Newbold_, xlix, 398. ---- substances, porosity of, vii, 192. ---- ----, containing siliceous infusoria and minute organic remains, _Turpin_, xxxii, 400.

Silicic acid, see _Silex_. ---- ether, _Ebelman_, xlix, 192.

Silicification of fossils, proceeding from thermal springs in Florida, _C. U. Shepard_, xxv, 165. ---- of wood, xxxiii, 108. ----, remarks on, _J. D. Dana_, xlviii, 88, 397; xlix, 227.

Silicified wood, see _Fossil_.

Silicon, how obtained, ix, 377. ----, a process for obtaining, _R. Hare_, xxii, 189; xxiv, 247^f; xl, 28. ----, production of, from paracyanogen, _S. M. Brown_, xli, 208. ----, on the alleged conversion of carbon into, xlii, 193.

Silk, on the manufacture of, in America, xviii, 382; xix, 175. ----, review of F. Pascalis on the culture of, xvii, 202; xviii, 278. ----, practical instruction concerning, xviii, 207, 278. ----, on the culture of, in India, xl, 39. ----, grown at Nottingham, England, xxxviii, 130.

Silk-worm, amount of silk from one, viii, 391. ----, new, xxxiii, 206.

_Silliman, B._, geological notices of New Haven and Litchfield Cos., Conn., ii, 201. ----, on prussic acid, ii, 81. ----, experiments with the gas blowpipe, ii, 282; iii, 89; vi, 349. ----, on an argentiferous galena from Huntington, Ct., and miscellaneous observations on lead ores, iii, 173. ----, circumstances connected with the formation of ice on still waters, iii, 179. ----, progress of American science, v, 197; xliii, 224. ----, tempest of Sept. 3, 1821, iv, 171. ----, natural ice-houses, iv, 174. ----, conversion of cannon balls into plumbago, iv, 179. ----, yellow oxide of tungsten, iv, 187. ----, fusion of charcoal, graphite, anthracite, &c. with the deflagrator, v, 108, 361; vi, 341, 378; x, 109, 119. ----, ---- ibid, with the compound blowpipe, vi, 349. ----, relations between the calorimotor and deflagrator, and other galvanic batteries, vi, 337. ----, application of fluor to etching glass, vi, 354. ----, on the cutting of steel by soft iron, vii, 342. ----, on the economical use of the anthracite of Pennsylvania, x, 331. ----, ---- ---- of R. Island, xi, 78. ----, on the igneous origin of some trap rocks, xvii, 119. ----, on the anthracite region in the Lackawanna and Wyoming valleys, xviii, 308.^f ----, notes on Mauch Chunk and other anthracite regions of Pennsylvania, xix, 1. ----, on the safety of steamboats, xix, 143. ----, notice of a fountain of petrolium, or oil spring, of Allegany Co., N. Y., xxiii, 97. ----, on the gold mines and region of Virginia, xxxii, 98. ----, experiments on different varieties of gold rock, xxxii, 105. ----, chemical examination of the coal of Chesterfield Co., Va., xlii, 369. ----, remarks on Phrenology, xxxix, 67. ----, remarks on ancient mounds, xliii, 152. ----, Address before the Assoc. Amer. Geol., 1841, xli, 187;--1842, xliii, 217. ----, review of Mantell's Medals of Creation, xlviii, 105. ----, work on Chemistry by, noticed, xix, 343; xx, 96. ----, comparison of British and American Journals of Science in 1834, xxvi, 174.

_Silliman, B., Jr._, on the electrotype, xl, 157.^f ----, analysis of the alluvium of the Nile, xl, 190. ----, rhombic structure of Connecticut sandstone, xli, 173. ----, soil of the Nile, xli, 160. ----, a daguerrotype experiment by galvanic light, xliii, 185. ----, use of carbon in Grove's battery, xliii, 393. ----, account of a carbon battery, xliv, 180.^f ----, scratches on rocks of Connecticut, xlv, 333. ----, review of Dana's Mineralogy, xlvi, 362.^f ----, analysis of Haydenite, xlvi, 379. ----, on meteoric iron from Otsego Co., N. Y., xlvi, 401. ----, on the trap and sandstone of Connecticut, xlvii, 107. ----, natural polariscope, xlvii, 418. ----, analysis of waters of the Dead Sea, xlviii, 10. ----, analysis of the mud of New Haven harbor, xlviii, 337. ----, reply to C. U. Shepard on a notice of his Mineralogy, xlviii, 179. ----, notice of meteoric iron from Cambria, near Lockport, N. Y., xlviii, 388.^f

_Silliman, B. D._, experiments on topaz, x, 352. ----, notice of an Aurora, xiv, 91.

Sillimanite, named, described and analyzed by _G. T. Bowen_, viii, 113. ----, notice of, viii, 195. ----, compared crystallographically with Kyanite, _C. U. Shepard_, xii, 59.^f ----, crystal of, with analyses, xlvi, 381.^f ----, analysis of, xlviii, 219. ----, analysis by _T. Thomson_, xlix, 396. ----, locality of, and of monazite, in Westchester Co., N. Y., xlvi, 207.

Silphium, v, 301.

Silurian or transition system, xxxv, 243. ---- ---- ----, _R. I. Murchison_ on, noticed, xxxvi, 399; xxxvii, 219; xliv, 193. ---- system of England and Europe, xxxvii, 219. ---- rocks of Denbigshire, _J. E. Bowman_, xlii, 325. ---- ---- of New York, xl, 77. ---- system, and its characteristic fossils, _T. A. Conrad_, xxxviii, 86. ---- ----, ibid, _H. D. Rogers_, xlvii, 145. ---- fossils, in Indiana, xlvi, 296.

Silver, atomic weight of, xlvii, 189. ----, effect of terrestrial magnetism on the precipitation of, xvi, 262. ----, Gregory's method of obtaining, from the chloride, xlvi, 201. ----, reduction of the chloride of, xxviii, 145. ----, production of the discolored chloride of, _Cavalier_, xx, 193; xxi, 369. ----, chloride of, on the change of color, xx, 193; xxi, 369. ----, fulminating, accidents from, i, 169; xxii, 185. ----, ----, xviii, 335. ----, ----, of Berthollet, xviii, 155. ----, ----, _Mitscherlich's_ mode of preparation, xix, 379. ----, on some of the substances which may be used in forming a metallic mirror by the precipitation of the oxide of, xlix, 398. ----, hyperoxide of, xlix, 194, 391. ----, purple precipitate of, xxii, 198. ----, German, made by _Frick_, xiii, 172. ----, imitation, xxiii, 195. ----, preparation of pure nitrate of, v, 348; xxiv, 370. ----, nitrate of, reduced by remaining in a pasteboard box, xviii, 400. ----, ----, pure, not blackened by sun's rays, xxxv, 298. ----, native, at Huntington, Conn., vi, 230. ----, ----, in New Jersey, v, 401. ----, ----, of Davidson Co., N. C., xli, 183, 349. ----, ----, in Michigan, Lake Superior, xli, 185; xlix, 81. ---- of Lane's mine, analysis of, _W. W. Mather_, xxvii, 256. ----, in the Southampton lead mines, Mass., xxii, 63. ----, fruitless search for, in Ohio, xxv, 224. ---- ores, reduction of, _W. W. Mather_, xxiv, 218. ----, yield of Russian mines of, xxi, 372. ---- mines of Nertchinsk, xvii, 34. ---- ---- of the Hartz, xix, 113. ---- ---- of Peru and Chili, xvii, 43. ---- ----, ----, Pasco, S. America, sketch of, _De Rivero_, xvii, 43.^f ---- ---- ----, Tarapaca, xliv, 8. ---- ---- of Mexico and South America, xxiv, 213, 226. ---- ---- of Davidson Co., North Carolina, xli, 183, 348. ----, sulphuret of, in New York, i, 237. ---- ore, red, analysis of, v, 377. ---- paper, mode of imitating, xix, 189.

Silvering copper, xxiii, 386. ---- glass, Drayton's method, xlix, 198. ---- iron, xxx, 169.

_Simond, L._, notice of, xxiii, 371.

Sines and cosines of the sum and difference of two arcs, formulæ for, _T. Strong_, i, 424.^f ----, rational expression for, _D. Gould_, xxii, 392.

Singapore, climate and productions of, _J. S. Travelli_, xliv, 151.

Siren, notice of genus and species, _D. H. Barnes_, xi, 281.

Sismondine, analysis and description of, _A. Delesse_, xlvii, 217.

Sium tricuspidatum, xi, 175.

Sivatherium, xxxi, 170; xxxiii, 104.

Size for artists, receipt for, xxi, 168. ----, new, for the chain of woven cloth, xxii, 366. ---- for cotton or linen, preparation of, xxii, 367.

Skeleton, human, of Guadaloupe, _J. Moultrie_, xxxii, 361. ----, ----, ancient in Ohio, ii, 242. ----, preservation of, xix, 57.

_Skene, J._, on the emigration of a colony of caterpillars, ix, 284.^f ----, graduation of thermometers, xii, 397.

_Skidmore, T._, formation of flexible elastic lubes, v, 153.

Skins, preservation of, xi, 397. ----, ----, see farther under _Preservation_.

Skugisan, xxvi, 388.

Skull found in a tree, iv, 377. ----, of Guadaloupe human skeleton, _J. Moultrie_, xxxii, 361.

Skulls, singular variety of, from Peru and Bolivia, xxviii, 78. ----, American, observations on, _J. C. Warren_, xxxiv, 47. ----, ----, _S. G. Morton_ on, xxxviii, 341.^f ----, _S. G. Morton's_ collection of, xxi, 197. ----, proposed new work on, by _S. G. Morton_, xxxii, 207. ----, ---- ----, reviewed, xxxviii, 341.^f

Skunk, American, iv, 391.

Sky, on the cause of the blue appearance of, _B. Hallowell_, xv, 360. ----, ibid, xxvi, 65.

Slates, artificial, in Russia, vii, 191.

Slate, roof, in western Massachusetts, viii, 19, 20. ----, ----, in Worcester Co., Mass., xxii, 34. ----, fused to hornstone, xxxiv, 73.

Sleep of plants, xxii, 375.

Slide of Alpnach, xxiv, 124. ---- in Essex Mountains, _W. C. Redfield_, xxxiii, 313. ---- from Mount Pilatus to the Lake of Lucerne, iii, 368. ---- and avalanches in the White and Green Mountains, xv, 217.

Small pox, nature of the virus of, xix, 389. ---- ----, _F. Pascalis's_ theory of its origin, x, 208. ---- ----, on the increase, xxxviii, 134. ---- ----, power of new virus, xxxviii, 134.

Smilax grandifolia, xlv, 171.

_Smith, Al._, Connecticut valley, water courses and geology of, xxii, 205.^f ----, ---- ----, terraces of, xxii, 214. ----, ---- ----, ancient lakes, xxii, 216. ----, ---- ----, greenstone, xxii, 224.

_Smith, Az._, electricity in machines, xxxix, 134. ----, ruins of Nineveh, xlix, 113.

_Smith, D. B._, Principle of Chemistry, by, noticed, xlvii, 414.

_Smith, E. D._, effects of earthquakes of 1811-12, i, 93. ----, Warm springs in Buncombe Co., North Carolina, iii, 117. ----, analysis of the Harrodsburg salt, i, 403. ----, application of medico-chemistry to calculous affections, iii, 300.

_Smith, F. L._, on the gold deposits of a portion of North Carolina,
xxxii, 130.

_Smith, H._, letter to B. Silliman, xxxv, 336.

_Smith, H. L._, on some nebulæ, xl, 37. ----, discovery of a comet, xlvii, 419.

_Smith, J._, on Atlantic steam navigation, xxxv, 160, 332; xxxvi, 133.

_Smith, J. D._, analyses of guano, xlviii, 183.

_Smith, J. L._, on the means of detecting arsenic, xl, 278; xlii, 75.^f ----, action of some alkaline salts on the sulphate of lead, xlvii, 81. ----, instrument for estimating the carbonate of lime in calcareous substances, xlv, 262.^f ----, action of phosphates of alkalies on carbonate of lime, &c., xlviii, 97. ----, chromate of potash, a reagent for distinguishing the salts of baryta and strontia, xxxvi, 183. ----, action of potash in cholesterine, xliv, 60. ----, notice of _V. Regnault_ on the dilatation of gases, xliv, 63. ----, on _Varrentrapp_ and _Will's_ mode of determining the nitrogen in organic compounds, xlii, 253^f; xlv, 267. ----, composition and products of distillation of spermaceti, and its oxidation by nitric acid, xliii, 301. ----, composition of marl from Ashley river, S. Carolina, xlviii, 101. ----, on fluorine in bones, xlvii, 131; xlviii, 99. ----, oxide of cobalt at Silver Bluff, S. Carolina, xlvii, 131; xlviii, 103. ----, a new method of making permanent magnets, by galvanism, xxxvi, 335.^f

_Smith, J. P._, lectures on geology, xli, 387.

_Smith, J. V. C._, remarks on his "Fishes of Massachusetts," xxxvi, 337.

_Smith, L. W._, suspended animation from drowning, v, 125.

_Smith, N._, obituary notice of, xvi, 211.

_Smith, S._, on the salt springs and manufacture of salt at Salina
and Syracuse, xv, 6.

_Smith, W._, labors of, in English geology, xl, 219; xliii, 226.

_Smithson_, notice of, xx, 306.

Smoke, production and prevention of, _H. Dircks_, xlvi, 400. ---- disperser, _Millet's_, xvii, 164.

Snail, edible, economical notice of, xxxii, 254.

Snails, habits of, _J. T. Plummer_, xlviii, 93. ----, see farther under ZOOLOGY, _Mollusca_.

Snake, copper-head, _C. S. Rafinesque_, i, 84.

Snakes, fascination of, xii, 368. ----, ibid, objected to, xiii, 388. ----, preserving of, xii, 288. ----, two headed, _S. L. Mitchill_, x, 48.^f ----, remarks on, _S. Woodruff_, xxix, 304. ----, suspended by spiders, xxvii, 307.^f

Snake Hill, Saratoga lake, ix, 1.^f

Snake-root, Turman's, a supposed antidote for the bite of rattlesnake,
N. Carolina, xlii, 43.

_Snell, E. S._, instrument for exhibiting a certain optical deception, xxvii, 310. ----, facts relative to the temperature of the year 1839, from observations at Amherst College, xxxix, 36.^f ----, a singular case of parhelion, and the theory of halos, xlix, 73.^f ----, on some new articles of philosophical apparatus, xlix, 20.^f

Snow, animalcules in, xviii, 56. ----, balls of, at Brunswick, Me., vi, 162. ----, clearing of, from the Baltimore railway, xx, 166.^f ----, crystallization of, _J. Green_, ii, 337.^f ----, ----, _C. Dewey_, iii, 367. ----, cylinders of, ii, 375. ----, at New Fane, Vt., 1823-4, depth of, _M. Field_, viii, 306. ----, at Marietta, Ohio, see _S. P. Hildreth's_ meteorological registers from 1829 to 1844. ----, inflammable, on a substance so called, _Hermann_, xxviii, 361. ----, red, x, 192. ----, ----, an animal production, xli, 64. ----, ----, near Boston, in 1688, xliii, 399. ----, ----, of Baffin's Bay, ii, 356. ---- and hail, singular appearances of, _D. A. Clark_, ii, 132.

Soap, notice of _Chevreul's_ observations on, ix, 189. ----, economical mode of making, xxxvii, 194. ----, from the Caraibes insects in Africa, iv, 195. ---- bubbles, illustration of cohesive force with, _J. Henry_, xlviii, 215. ----, making, preservation of animal fat for, xxxvii, 194.

Soapstone, and its uses, xiv, 376. ----, used for diminishing friction in machines, xiii, 192. ---- and mica slate, connection of, near Lowell, Mass., xxvii, 341. ----, of Maryland, xxvii, 17, 20. ----, in Virginia, i, 62. ----, see farther under _Steatite_.

Societies, admission fees to various foreign, xx, 165. ----, number of members of a few prominent, xx, 173.

Society, (in England,) of Arts Manufactures and Commerce, of London, xviii, 390; xxxix, 397. ----, ----, Astronomical, of London, ii, 364. ----, ----, Egyptian, of London, ii, 345. ----, ----, Electrical, xxxiv, 401. ----, ----, Geological, number of fellows of, in 1837, xxxiii, 76. ----, ----, ----, xli, 190. ----, ----, Geographical, of London, xxxii, 383. ----, ----, Meteorological, of London, xxxiv, 400. ----, ----, Microscopic, of London, xxxix, 203; xliii, 391. ----, ----, Royal, iii, 373. ----, ----, Traveller's, v, 175. ----, ----, Yorkshire Philosophical, xxi, 168. ----, (in Scotland,) Royal, xli, 382. ----, (in Ireland,) Belfast Natural History, ix, 381; xxviii, 369. ----, ----, Geological, of Dublin, xxviii, 368. ----, (in Europe,) for the encouragement of Agriculture, Industry and the Arts, in Switzerland, vii, 381. ----, ----, for the amelioration of Prisons in Russia, iii, 374. ----, ----, for the advancement of the Arts at Geneva, v, 379; vi, 392. ----, ----, Bible, of Athens, iii, 381. ----, ----, for the encouragement of National Industry in France, expenditure of, for 1821, vii, 198, 371. ----, ----, of Christian Morals in France, v, 194. ----, ----, Geographical, at Paris, viii, 384. ----, ----, Geological, of France, xxiv, 192; xxviii, 283. ----, ----, Helvetic, of Natural Sciences, x, 377; xviii, 168. ----, ----, Horticultural, of Paris, xv, 378. ----, ----, Linnæan, of Paris, v, 382; x, 195; xi, 380. ----, ----, ----, of Bordeaux, x, 173. ----, ----, Literary, of Antwerp, iv, 380. ----, ----, Medical, (Royal) in France, iv, 378. ----, ----, of Northern Antiquaries, xl, 212, 403; xlii, 214. ----, ----, Polytechnic, of Paris, xxiv, 191. ----, (in Canada,) Literary and Scientific, xx, 168. ----, ----, Historical and Literary, of Quebec, transactions of, xvii, 412; xx, 168; xxv, 211; xxviii, 368. ----, (in United States,) enunciation of scientific, x, 369. ----, ----, American Antiquarian, iii, 357; xviii, 136. ----, ----, American Geological, notice of, i, 442; ii, 139; v, 403; vi, 377. ----, ----, ibid, proceedings of, iii, 360; iv, 191; ix, 178; x, 201. ----, ----, American Philosophical, notice of transactions of, xxxvii, 188. ----, ----, ibid, proceedings of, xxxviii, 153; xxxix, 361; xl, 27, 374. ----, ----, ibid, proceedings at the centennial anniversary of, in 1843, xlv, 231. ----, ----, Albany Institute, transactions of, xvii, 208, 415; xix, 173, 360. ----, ----, Boston Natural History, annual report of, giving some account of the cabinet of, xxxii, 364; proceedings of, xxxiii, 180. ----, ----, ibid, notice of Journal of, xxvi, 397; --proceedings of, xxviii, 373; xxxi, 185; xxxiii, 180; xxxvi, 379; xxxvii, 391; xxxviii, 193; xxxix, 182; xl, 196, 386; xlii, 379; xliv, 193; xlvii, 411. ----, ----, Cincinnati Natural History, address from, on collecting specimens and information, i, 203. ----, ----, Delaware Chemical and Geological, notice of, v, 198. ----, ----, Essex County Natural History, notice of Journal of, xxxvii, 187. ----, ----, Entomological, of Pennsylvania, xliv, 199. ----, ----, Franklin Institute, Philadelphia, established, ix, 391. ----, ----, Franklin, of Providence, xviii, 195. ----, ----, Hartford Natural History, xxxii, 392. ----, ----, Yale Natural History, xxx, 187; xxxiv, 397. ----, ----, Indiana Historical, notice of, xx, 163; xxiv, 181. ----, ----, New York State Horticultural, formed, viii, 398. ----, ----, Statistical, of New York, notice of, xxxii, 202. ----, see farther under _Academy_, _Association_, _Lyceum_ and _Institute_.

Soda, crude, of commerce, remarks on, _J. Revere_, xiv, 41. ----, prepared from the sulphate of soda, xiii, 176. ----, impurities in, xix, 83. ----, carbonate of, on the manufacture, xxviii, 143. ----, supercarbonate of, new mode of preparing, xxx, 189. ----, ----, xix, 198. ----, nitrate of, in Atacama, Peru, xii, 385. ----, ----, in Tarapaca, xxxviii, 410; xxxix, 375; xliv, 5. ----, anhydrous sulphate of, xiii, 185. ----, hyposulphite of, _Plessy_, xlix, 200. ---- and magnesia sulphate, xlviii, 189. ---- alum, at Milo, analysis of, xvi, 203; xxii, 387.

Sodium, preparation of, viii, 372. ----, a property of, xvii, 182. ----, price of, in 1825, ix, 387. ----, experiments on, _J. T. Ducatel_, xxv, 90. ----, chloride of, see _Salt_.

Soils, analysis of, remarks on, _A. Eaton_, xii, 370. ----, ----, new mode of, _S. L. Dana_, xxxvi, 366. ----, ----, in _C. T. Jackson's_ geological report, xl, 189. ----, on the chemical examination of, xli, 262. ----, organic matter of, _C. T. Jackson_, xlv, 337. ----, on the importance of determining the organic constituents of, and the mode, _C. Daubeny_, xliv, 352. ----, state of iron in, xlix, 394. ----, action of manures on, _Boutigny d'Evreux_, xxvi, 179. ----, action of gypsum on, xxvi, 181. ----, effect of magnesia on, xli, 159. ----, effect of hydrated-peroxide of iron on, xli, 159. ----, effect of sulphuret of iron on, xli, 159. ----, potash in, xli, 160. ----, in Indiana, _J. T. Plummer_, xl, 198; xliv, 310. ----, of Illinois prairie, xxxiv, 160. ----, of Maryland, _J. T. Ducatel_, xxvii, 316. ----, of Massachusetts, analyses, _E. Hitchcock_, xxxvi, 363, 366. ----, of New York, Kings, Queens and Richmond Cos., xxxvi, 21. ----, of Rhode Island, _C. T. Jackson_, xl, 188. ---- of the West, analyses of, xxxvi, 373.

Solar eclipse, see _Eclipse_. ---- spectrum, chemical action of, _Hessler_, xxxi, 160. ---- ----, dark lines of, rendered distinct, _D. Brewster_, xxxi, 379. ---- ----, new observations on, _J. F. W. Herschel_, xxxviii, 110. ---- ----, with light from nitre, &c., peculiarities of, _D. Brewster_, xliv, 163. ---- ----, action of gaseous and other media on, xlii, 157. ---- ----, photographic impression of, and phenomena of, _J. W. Draper_, xliv, 204. ---- ----, new experiments on, _D. Olmsted_, xlviii, 137. ---- rays, magnetic influence of, xiii, 188. ---- ----, electricity of, xvii, 391. ---- ----, see farther under _Light_. ---- spots, first observations on, xxiv, 204. ---- ----, in 1825, connection of, with temperature, xii, 199. ---- ----, in Nov., 1837, _D. Olmsted_, xxxiii, 393.^f ---- ----, heat of, _J. Henry_, xlix, 405. ---- halos, at New Lebanon, _T. Kendall_, vii, 337.^f ---- ----, in Tennessee, at Jackson, x, 368.^f ---- ----, in Massachusetts, at Millbury, x, 369.^f ---- ----, in Kentucky, xi, 325.^f ---- ----, in Rhode Island, September, 1816, xi, 328.^f ---- ----, in Otsego Co., N. Y., Feb., 1823, xx, 297. ---- ----, at Cazenovia, N. Y., _J. W. Tyler_, xxi, 189. ---- ----, at Kingston, U. C., _R. H. Bonnycastle_, xxx, 136. ---- ----, at West Point, _A. C. Twining_, xxxii, 229. ---- ----, theory of, _E. S. Snell_, xlix, 73.^f ---- heat, effect of, in raising a balloon, xxxiii, 196. ---- and terrestrial radiation, observed at Montreal, xxxvi, 182. ---- index, xlix, 301.^f ---- phosphori, xvii, 170. ---- system, on the elements of, _E. H. Burritt_, xxvi, 129.

Soldering sheet iron, vii, 379.

Solfatara, connection of, with Vesuvius, xix, 387.

Solid bodies, instrument for measuring the expansion of, xxx, 324.^f

Solidification of carbonic acid, xxxi, 163, 404; xxxv, 301, 346; xxxviii, 297^f; xlii, 203; xlix, 206.^f ---- of gases, _M. Faraday_, xlix, 373.

Solorina saccata, xlv, 49.

Solubility of magnesia, v, 378.

Songs of birds, xxi, 164.

Soot, analysis of, xi, 386.

Sophora affinis, xlix, 130.