408 



INDEX. 



Rogers, S., Letters on the manufacture 



of Iron, 380. 

 Rossie lead mines, 174. 

 Rot, dry, observations upon, 197. 

 Russell's Planetarium, description of, 



400. 



S. 



Salines at Onondaga Lake, 228. 

 Saurians, fossil, 32S. 

 Saxifraga Careyana, a new plant, 32. 

 Scott's picture of a Parthian Archer, 215. 

 Shells, fresh-water, preparation of, for 

 cabinets, 391. 



new species of, 106, 392. 

 Shooting stars, determination of longi- 

 tude by, 399. 



in June, 201. 

 of April 18-20, 1841,397 

 of Aug. 10,1841,202. 

 ofDec.7, 1838, 398. 

 Showers of pollen, 195. 

 Silicon, alleged conversion of carbon 



into, 193. 

 Silliman, B., remarks on Mid Lothian 



coal, 369. 

 Smelting of lead, 169. 

 Smith, J. L., on the determination of ni- 

 trogen in organic compounds, 253. 

 remarks on arsenic, 75. 

 Solar eclipse of July 8, 1842, 175, 395. 

 Spark extinguisher, 209. 

 Stars, nomenclature of, 148. 



shooting, determination of longi- 

 tude by, 399. 



in June, 201. 



of April 18-20, 1841, 397. 

 of Aug. 10, 1841. 202. 

 of Dec. 7, 1838,398. 

 Steudel's Nomenclator Botanicus, 377. 

 Storm of Dec. I5th, 1839, 112. 

 Storms, Dr. Hare's objections to Mr. 

 Redfield's theory of, 140. 



Mr. Rediield's reply, 299. 

 Strong, T., demonstration of the princi- 

 ple of virtual velocities, 66. 



on diiferential equations, 273. 

 Sturgeon, W., Mr. Walker's protest 



against, 383. 

 Sturm's auxiliary functions, 163. 

 Sullivant, Wm. S., account of three un- 

 described plants of central Ohio, 49. 



Sullivantia, a new botanical genus, 22. 



Sulphur, bichlorure of, 71. 



Sunset at the West, 200. 



Survey, geological, of Louisiana, 390. 



Tellurium, an astronomical machine, 



338. 

 Temperature, influence of mountains on, 

 1-59. 



of Rome and New York, 

 compared, 120. 



ofthe year 1841,344. 

 Thermometer, register of, from 1830 to 



1839, 368. 



Thu n der storm, destructive, of Sept. 14th, 



1840, 210. 



Trapezium paddle-wheel and screw, 336. 

 Trilobite, new species of, 366. 

 Twining, A. C, suggestions on the solar 

 eclipse of July, 1842, 395. 



Vaccinium Constablaei, a new plant, 42. 

 Van Rensselaer, J., on the temperature of 



Rome and New York, 120. 

 Vegetable tissue, elementary composition 



of, 212. 

 Velocities, virtual, principle of, 66. 

 Vessels, propulsion of, by paddle-wheel 



and screw, 336. 



W. 



Walker, C. V., protest of, 383. 



S. C, on periodical meteors of 



August and November, 401. 

 Western States, geology of, 51. 

 Whewell, W., demonstration that all 



matter is heavy, 264. 



Dr. Hare's reply, 260. 

 Whirlwind theory of storms, 299. 

 Wilkie, Sir David, death of, 215. 

 Wood ashes, spontaneous combustion in, 



165. 

 Woodward, F. G., spark extinguisher, 



209. 



Zodiacal light, 395. 



Zoological writings of Rafiaesque, 280. 



