INDEX. 



407 



Silurian S\^stem of Murchison, noticed 

 219. 



Soap, economical mode of making. 194. 

 Solar Painting, 169, 374. 

 SpringSj mineral in Texas, 213. 



thermal, their connection with 

 volcanoes, 53. 



atSingerli, 372. 

 Sqnin'els of North America described, 

 290. 



Stars, double, motions of, 373. 



missing, 373. 

 Statistical Society of London, notice o 



their Journal, 189- 

 Sternberg, Kaspar, biog. notice of, 125. 

 Slickuey, B. F., on supposed discovery 



of cinnabar in Michigan, 185. 

 Stones meteoriCj fall of in Missouri, 385. 



South Africa, 

 190. 



investigation of, by Ber- 

 zelius, 93. 



Strontium, extrication of, by Dr. Hare, 

 267. 



Sulphuric acid, its reaction with essen- 

 tial oil of hemlock, 246. 



m 



Tabriz, earthquakes at, 351. 



Talbot, H. F., photographic drawing, 

 171. 



Tapestries of Raphael, revival of their 

 colors, 244. 



Taurus mountains described, 351. 

 Thermal springs, causes of, 53. 

 Thomas, David, on a new species of Li- 



atris, 338. 

 Thomson, R. D., his British Annual no- 

 ticed, 400. 

 Tomlinson, D., on preserving animal 



fat, 194. 

 Tornado in Allegany Co. N. Y., July 



25, 1838, 90. 



New Brunswick, N. J. June 



19, 1835, 255. 



New Haven, July 31, 1839, 



340. 

 Tower of Babel, ruins of, 352. 

 Transactions of Amer. Phil. Soc. Vol. 



6, pt. 2, noticed, 188. 

 Tree, fossil at Granton, 363- 

 Trevelyan on materials of the temples 



at Pacstum, 366. 

 Trilobite, new species of, 40. 





Trilobites, remarks on, by Prof, J. 

 Green, 25. 



Dr.EuckIand,27. 

 Trmity Country, Texas, geology of, 211. 



Trull on the colors of the Raphael Ta- 

 pestries, 244. 



Tuckcrman, Edward Jr., on the Lichens 

 of N.E.,394. 



Turner, Prof. E., chemical examination 



of the fire damp, 201. 

 Turpentine, oil of, how purified, 399. 

 Turlon, Wm., notice of, 161. 



Tuscany, boracic acid lagoons of, 270. 



V. 



Vaporization of earths by distillation, 

 398. ' 



Vegetation as affected by climate, 15. 

 Veins metallic, formed by voltaic agen- 

 cy, 199, 



Vespertilio pruinosus, notice of, 195, 

 Virginia, notice of Prof. W. B. Rogers' 



geological report of, .380. 

 Volcano, extinct, near Ararat, 349. 



internal, in the Courdish coun- 

 try, 350. 



Volcanoes, chemical theor3^of, defended 

 by Daubeny, 78. 



natural history of, by Prof. 

 G.Bischof, 41. 



Water, boiling of, its use in measuring 



heights, 19. 

 Waterspouts, CErsted's essay on, 250- 

 Webster, Prof. J- W., on explosions of 



hydrogen and oxygen, 104. 



his proposed bi- 

 ography of scientific men, 193. 



Weston meteorite, velocity of, 132. 



Whewell, Rev. Wm., address before 

 Lond. Geological Society, 116, 218. 



White, Gilbert, notice of, 155. 



Winch, N. J., notice of, 120. 



Wines, alcoholic strength of, 363. 



Wolle, J., and A. L. Huebener, their 

 Catalogue of Plants, 310. 



Wright, Col. Richard, meteorological 

 observations in Colombia, 1. 



W , , 



oc. of Nat. Hist., 3917"^ 



Y. 



Wm 



