Part 33

_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.

Sopwith's mode of constructing secretaries, xxxv, 317.

Sordawalite, x, 186.

Sorex, see under _Zoology_.

_Soubeiran, E._, action of chloride of lime on alcohol, xxiii, 134. ----, on the pulverization of calomel, xlvii, 193.

Sound, concentration of, xix, 190. ----, limits to the audibility of, xxii, 374. ----, effect of, on the barometer, xxx, 377. ----, reverberation of, and best buildings for hearing, xxix, 350. ----, velocity of, vi, 394; xvi, 390. ----, waves of, apparatus for illustrating, xlix, 20.^f ----, subterranean, x, 377. ----, ----, at East Haddam, Ct., xxxix, 336. ----, influence of, on the elephant and lion, x, 186.

Soundings, deep, in the ocean, by the French ship Venus, xl, 407.

Soups from bones, in France, x, 388.

South America, extracts from travels in, xxiv, 382.

South Carolina, Medical Institution and Journal, xii, 382. ----, geological notices of, iii, 1, 227.

South Seas, icebergs in, xxii, 200.

Southampton lead mine, Massachusetts, i, 136; vi, 201; ix, 166; xii, 238^f; xxii, 57.

Southern Review, notice of, xiii, 383; xiv, 199. ---- Agriculturalist, xviii, 203; xxi, 182.

Space, planetary, _Fourier_ on the temperature of, xxxii, 1. ----, ----, _S. D. Poisson_ ibid, xxxiv, 57. ----, ----, idea of ether in, when introduced, xxxiii, 1. ----, ----, ibid, _R. W. Haskins_ on, xxxiii, 1. ----, resistance in, to the motion of the heavenly bodies, xvii, 389.

Spadiate, a new mineral, xlix, 394.

_Spafford, H. G._, on groves of evergreens, as screens for the garden, orchard, &c., xxii, 158. ----, on spontaneous combustion, xxii, 161.

Spain, difficulty of mineralogical excursions in, viii, 187. ----, yield of Rio Tinto mine of copper, xxviii, 144. ----, mines of Almaden, xxviii, 21. ----, extracts from a journal, on the mining industry of, _F. Le Play_, xxviii, 17. ----, Madrid, science in, xix, 194.

Spark extinguisher, xlii, 209.^f ----, electric, see _Electric_.

Sparks in the freezing of water by ether, _Pontus_, xxvi, 178.

Sparrows, number of caterpillars taken by, ix, 200.

Spatangus, see ZOOLOGY, _Radiata_.

Spathic iron, see _Iron, carbonate of_.

Specific gravity, considered as a mineralogical character, xvi, 260. ---- ----, on the means of taking, _R. Hare_, xi, 121.^f ---- ----, a new instrument for, _F. H. Baddely_, xviii, 263.^f ---- ---- of gases, a modification of the method for ascertaining, _R. Hare_, xvi, 293. ---- ---- ----, _T. Thomson's_ method of taking, ii, 362. ---- ---- of nitrogen, oxygen, chlorine, and of the vapors of carbon, sulphur, arsenic and phosphorus, xxxv, 298. ---- ---- of various minerals, _A. Breithaupt_, xxxi, 268. ---- ---- of seawater, v, 129. ---- heat of the gases, notice of _de la Rive's_ and _Marcet's_ memoir on, xiii, 394. ---- ---- of certain solids, method of determining, xxvii, 267.

Spectacle glasses, manufactory of, xxvii, 80.

Spectrum, solar, see _Solar_.

Specula for telescopes, improvement in, xliv, 166.

Speculum, _Nasmyth's_ pneumatic, xxxviii, 107.

_Spencer, A._, vindication of claims, relating to the graphic art, xliv, Appendix.

_Spencer, T._, on the electrotype and its use, xl, 157.^f

Spermaceti, composition of, products of distillation of, and oxidation of, by nitric acid, _J. Lawrence Smith_, xliii, 301. ----, moving particles in, when burning, xl, 148.

Sphene in Canada, viii, 76. ---- in Massachusetts, vii, 53, 254; xxiv, 397. ---- in New Jersey, v, 243, 244. ---- in New York, ix, 40, 41, 251, 402; xxi, 326. ---- in Pennsylvania, x, 220; xiv, 7, 18. ---- in Vermont, iv, 276.

Sphenophyllites, generic characters of, vii, 182.

Spherical trigonometry, elements of, xvii, 415.

Sphinges, North American, xxxvi, 282.

Spiders, mode of forming the web of, xviii, 165. ---- and spider-webs, _J. Edwards_, xxi, 109.^f ----, gossamer, xvi, 399. ----, snake suspended by, xxvii, 307.^f ----, see farther, ZOOLOGY, _Articulata_.

Spinel in New York, viii, 92; ix, 242, 251; xxi, 326. ---- in New Jersey, v, 244; ix, 245.

Spinning frame, Brewster's, x, 130. ---- machine, worked by mice, in Scotland, viii, 371.

Spiral of Archimedes, _A. B. Quinby_, ix, 316.^f ---- conductor, on the action of, _J. Henry_, xxviii, 329.

Spirits, evaporation of, iii, 376.

Spitzbergen, some account of, xvi, 144.

Spix and Martius, reception of, at Munich, iv, 383.

Spodumene in Massachusetts, vi, 225 and vii, 30 (called white Augite); viii, 120, 243; ix, 20; xiv, 220; xx, 170. ---- from Sweden, vii, 371.

Sponges on the shores of Long Island, _C. S. Rafinesque_, i, 149.

Spongia patera, or Neptune's goblet, _A. A. Gould_, xxxvi, 386.

Spongy platina, _Döbereiner's_ discovery and researches, vii, 387; xviii, 151. ---- ----, _J. Liebig_ on, xviii, 398. ---- ----, action of, prevented by certain gases, xxxi, 348. ---- ----, ----, _Kuhlmann_, xxxvii, 198.

Spontaneous combustion, instance of, iii, 383; v, 201; xxii, 161; xxvii, 178; xxxiii, 147. ---- ---- in wood ashes, _O. P. Hubbard_, xlii, 165. ---- ----, remarks on, _J. Mease_, xxxiii, 147, 199. ---- ---- of coal, xxxiii, 147. ---- ---- of linen, cotton, &c. with linseed oil, xxxiii, 148. ---- ---- of oatmeal, xxxiii, 150. ---- ---- of lampblack, xxxiii, 150. ---- ---- of horse-manure, xxxiii, 151. ---- ---- of coal, xxxiii, 200. ---- ---- of wood, xxxv, 144. ---- generation, remarks on the theory of, _C. A. Lee_, xxxix, 289.

Spots on the sun, first observations on, xxiv, 204. ---- ----, in 1825, connection of, with the temperature, xii, 199. ---- ----, in 1837, observations on, _D. Olmsted_, xxxiii, 393.^f ---- ----, heat of, _J. Henry_, xlix, 405.

Spring, monograph by, on the Lycopodiaceæ, xliv, 196.

Springs and fountains, on the origin of, _G. W. Long_, xvii, 336. ----, remarks on Mr. G. W. Long's paper on, xviii, 379. ----, geographical, geological and physical considerations on, _H. de Thury_, xviii, 267.^f ----, freshwater, _J. du Commun_, xiv, 174.^f ----, spouting fountain near Uncino, Naples, xxv, 194. ----, ibid, analysis of water of, xxv, 195. ----, acidulous or carbonated, New York, xxxvi, 8. ----, burning, Ohio, xlix, 406. ----, carburetted hydrogen, New York, xxxvi, 6. ----, ---- ----, in the Ohio valley, xxiv, 61. ----, chalybeate, at Litchfield, Ct., iii, 235. ----, ----, at Catskill, N. Y., iii, 236. ----, ----, remarkable, in Scotland, xx, 384. ----, hot, see _Springs, thermal_. ----, intermittent, near Pittsburgh, Pa., cause of, xlviii, 400. ----, mineral, _J. Anglada's_ deductions respecting, v, 187. ----, ---- water from Azores, analysis of, _C. T. Jackson_, xxxi, 94, 96. ----, ----, near Albany, _W. Meade_, xiii, 145. ----, ----, of Carlsbad, vii, 185. ----, ----, of Florida, xxxv, 51. ----, ----, in Illinois, xxxiv, 157. ----, ----, in Massachusetts, viii, 31; xxii, 47. ----, ----, of Cliff street, New York city, analysis of, _G. Chilton_, xviii, 346. ----, ----, of Saratoga and Ballstown, analysis of, _J. Steel_, xxi, 182; xxxvi, 8. ----, ----, ----, iodine in, xvi, 216, 242. ----, ----, ----, high rock, description of, _J. N. Steel_, xvi, 341.^f ----, ----, ---- springs, bromine in, xviii, 142. ----, ----, ----, remarks on, with analyses, _J. F. Dana_ and _J. Steel_, xxxvi, 8. ----, ----, in Pennsylvania, Bedford, xix, 97, 204. ----, ----, ----, Pittsburgh, analysis of, _W. Meade_, xiv, 124. ----, ----, in Tennessee, i, 66. ----, ----, in Texas, _J. L. Riddell_, xxxvii, 214. ----, in Scott, Scott Co., Va., analysis of, _C. B. Hayden_, xliv, 409. ----, naphtha, in Old Assyria, xxxvii, 353. ----, in Persia, xxxvii, 354. ----, nitrogen, locality of, at Hoosick, viii, 31; xv, 234. ----, ----, Lebanon, viii, 21 xxxvi, 7. ----, on the formation of nitrogen in warm, _C. Daubeny_, xx, 383. ----, petrifying, in New York, xxxvi, 11. ----, pretroleum, in Kentucky, xxxix, 195. ----, ---- in the salt springs of the Ohio valley, xxiv, 63. ----, salt, origin of, _A. Eaton_, vi, 242. ----, ----, in Europe, Bavaria, emitting carbonic acid gas, _J. D. Forbes_, xxxv, 293. ----, ----, ----, of Montiers, in the Alps, and a peculiar mode of evaporation, _R. Bakewell_, xx, 219.^f ----, ----, ----, changes in, in Prussia, x, 193. ----, ----, in America, of Bear Lake and Northern America, xvii, 3, 5. ----, ----, ----, in Canada, viii, 73. ----, ----, of the United States, account of, _G. W. Carpenter_, xv, 1. ----, ----, ----, of New York, xxxvi, 2; xxxix, 103. ----, ----, ----, ----, analyses of, _G. Chilton_, vii, 344. ----, ----, ----, ----, of Salina and Syracuse, _S. Smith_, xv, 6. ----, ----, ----, ----, of Salina, contain iron, xvi, 187. ----, ----, ----, ----, of Salina, bromine contained in, xviii, 143. ----, ----, ----, ----, of Onondaga lake, xlii, 228. ----, ----, ----, of Pennsylvania, Kiskiminitas and Conemaugh, xxix, 71. ----, ----, ----, of Ohio, x, 5. ----, ----, ----, of Ohio valley, _S. P. Hildreth_, xxiv, 46; xxix, 26, 48. ----, ----, ----, of Indiana, xl, 135. ----, ----, ----, of upper Illinois, xxxiv, 157. ----, ----, ----, of Kentucky, xxix, 140. ----, ----, ----, of Michigan, xxxiv, 192. ----, ----, ----, of Virginia, i, 66. ----, ----, ----, ----, Holston, _C. B. Hayden_, xliv, 173. ----, ----, ----, ----, Kenawha, bromine and iodine in, xviii, 260. ----, ----, ----, ----, Kenawha, analysis of, xxiv, 66. ----, ----, ----, west of the Mississippi, iii, 27, 33. ----, ----, ----, of Texas, _J. L. Riddell_, xxxvii, 213. ----, sulphur, in New York, ii, 15; xv, 235; xxxvi, 9. ----, ----, of New York state, _L. C. Beck_, xli, 162. ----, ----, of Avon, analysis of, _S. Salisbury_, xxxv, 188. ----, ----, near Massena, St. Lawrence Co., N. Y., xix, 226. ----, ----, Buffalo, chemical examination of, xx, 156. ----, ----, along the Hudson, allusion to, viii, 31. ----, ----, Delaware Co., Ohio, xxxi, 73;--analysis of, 74. ----, ----, in Maryland, xxvii, 28. ----, ----, in Virginia, gray sulphur, analysis of the water of, _C. U. Shepard_, xxx, 100. ----, ----, ----, white sulphur, xxix, 94. ----, ----, ----, red sulphur, xxix, 96. ----, ----, in Indiana, i, 133. ----, ----, on the St. John, Florida, xxv, 170. ----, ----, of Florida, xxxv, 51. ----, ----, of Texas, xxxvii, 215. ----, sulphuric acid or sour, in New York state, xv, 238; xxxvi, 10. ----, thermal, _K. von Nidda's_ classification of, xxxvi, 255. ----, ----, of volcanic regions, _G. Bischof_, xxxvi, 254. ----, ----, deposits from, _G. Bischof_, xxxvi, 259. ----, ----, causes of, _G. Bischof_, xxxvi, 253. ----, ----, connection of, with volcanoes, xxxvii, 53. ----, ----, of the Azores, iv, 261. ----, ----, boiling, near the Akhoor river, xxxvii, 349. ----, ----, ----, of Iceland, iv 370; xxxvi, 255. ----, ----, in Asia Minor, xxxvii 372. ----, ----, baths of Tiflis, Georgia, xxxvii, 349. ----, ----, of the Pyrenees and Alps, xxxvi, 253; xxxvii, 58, 61. ----, ----, in the bed of the Rhone, xxiv, 201. ----, ----, of North America, notice of, _C. Daubeny_, xxxvi, 88. ----, ----, of United States, Arkansas, xxxiii, 202. ----, ----, ----, in Maryland, xxvii, 28. ----, ----, ----, in Virginia, i, 66. ----, ----, ----, in North Carolina, iii, 117. ----, ----, ----, in Missouri, iii, 29. ----, ----, ----, of Suannee and elsewhere, Florida, _C. U. Shepard_, xxv, 165. ----, ----, ----, of Georgia and Florida, remarkable, _C. U. Shepard_, xxv, 168.

_Sproat, A. D._, proposed reform of orthography, xxxix, 197.

Spruce timber, strength of, xix, 228.

_Spurzheim, G._, memoir of, xxiii, 356. ----, works of, xxiii, 406.

Squamaria rubina, notice of, xxxix, 183.

Square numbers, analysis of, _A. D. Wheeler_, xxv, 87.

Squirrels of North America, description of, xxxvii, 290. ----, larvæ of Estrus in, xlvi, 244.

St. Lawrence, geology of the valley of, xlvi, 314.

St. Croix, geological character of, xxxv, 64.

_St. Fond, F. de_, obituary notice of, ii, 352.

St. Gall, society for encouragement of industry, vii, 381.

St. Michael, geological structure of, iv, 251.

St. Lawrence Co., N. Y., minerals of, xix, 220; xxv, 346. ----, geology of the valley of, _C. Lyell_, xlvii 314.

St. Petersburgh Academy, xxii, 203.

St. John's river, xxxv, 48.

Stachys aspera, iv, 65.

Staining of wood, iii, 166.