412 



INDEX. 



S. 



Salisbury, E. E., abstract of Klaproth on 

 the invention of the compass, 242. 



Savage, T. S., on African insects, 387. 



Scalaria, two species of, described, 95. 



Sclileciitendal's Linnsea, noticed, 392. 



Scientific memoirs, foreign, 308. 



Shells, fossil, from Ala., described, 92. 

 new, described by I. Lea, 28. 

 of Middlebury, Vt., account of, 

 266, 4C8. 



Shepard, C. U., on native and meteoric 

 iron, 366. 



Shooting stars, list of showers of, 349. 



of August and Nov., 51, 201.1 



Silk, culture of in India, 39. ll 



Silliman, B. Jr., on the electrotype, 157. ! 



analysis of alluvium of the' 



Nile, 190. ij 



Silurian system of rocks in N. Y., 77. 1 



Smith, H.L , observations on nebulae, 37.' 



Smith, J. L.. detection of arsenic, 278. |i 



Smith, William, death of, 219. 1| 



Society of Northern antiquaries, 212, 403. 



Soils, analysis of, 189, 198. ' 



Spermaceti, burning, moving particles in, 

 148. 



Spiritual life of plants, 170. 



Star-showers of former times, 349. 



Stars, nomenclature of, 310. 

 catalogues of, 310,312. 

 missing, 406. 



Steam, electricity from, 382. 



Steam vessel crossing the Atlantic in 

 1819, 34. ]j 



Stendel's Nomenclator Botanicus, noti- 

 ced, 174. !| 



Storm of Dec. 20, 1836, account of, 34. || 



Storms, Espy's theory of, 327. 



Stralton, W. T., on ground ice, 407. 



Strontium, extrication of, 293. 



Subterranean temperature, report on, 

 332, 



Sugar, artificially made, 216. 

 Sulphuric acid, new process for, 214. 

 Sun seen of a blue color, 323. 



Taberd's Anamilic and Latin dictionary, 



43. 

 Tails of comets, remarks on, 59. 

 Taylor's theorem, discussion of, 42. 

 Tea plant in Assam, 165. 

 Brazil, 167. 

 Terebra, two species of, described, 100. 

 ']"'imber, preservation of, 213. 

 Tornadoes, illustration of, 399. 

 Triton, new species of, described, 99. 

 Trochus, '• " 96. 



Turbinella, " " 98. 



Turbo, " " 95. 



Turritella, three species of, described, 96. 



V. 

 Vision with the head inverted, 343. 

 Volcanic ashes, shower of, 198. 

 Volcanoes of Hawaii, 117. 

 Voluta, new species of, described, 103. 

 Von Martius on the spiritual life of plants, 

 170. 



W. 



Walker, S. C, on meteors of August, 

 1840, 51. 



Waterspout, illustration of. 399. 

 rotation of, 324, 332. 



Waves, report on, 323. 



Wikstrom's report on botany, 393. 



Witid, comparative force of, 322. 



Winthrop, John, ancient meteorological 

 notes, 204. 



Woody tissue of plants, 176. 



Wyman, J., notice of the howling mon- 

 key, 387. 



Z. 



Zeolites, locality of, 69, 



