-,Cy 



408 



INDEX. 



Rogers, W. B., on subterranean tempera 

 ture, 176. 



on the age of the coal 

 rocks of Virginia, 175. 



on the dip of geological 

 strata, 171. 



on the porous anthracite 

 of Virginia, 175. 



on the structure of the 

 Appalachian chain, 177. 



on the thermal springs of 

 Virginia, 176. 



proofs of diluvial agency, 

 181. 



S. 



Saurian remains, Mantell's memoirs on, 



189. 

 Schoolcraft, H. L., on foot-prints in solid 



limestone, 22. 

 Science, new works in, 205. 



British Association for the Ad- 

 vancement of, 367. 

 Shepard, C. U., analysis of meteoric iron 

 from Tennessee, 354. 



on chlorine in meteoric iron, 

 359. 



on Euclase in Connecticut, 

 366. 



on supposed Phenakite and 

 Calstron-baryte, 366. 



on the want of identity be- 

 tween microlite and pyrochlore, 116. 

 on Washingtonite, a new 

 mineral, 364. 

 Sherwin's Treatise on Algebra, 190. 

 Shooting stars of April 20—21, 1842, 212. 

 of Aug. 8th, 9th and 10th, 

 1842, 377. 

 Siliiman, Prof., address before the Asso- 

 ciation of American Geologists, 217. 



remarks upon ancient mounds, 

 152. 

 Siliiman, B. Jr., Daguerreotype experi- 

 ment by galvanic light, 185. 



on the use of carbon in 

 Grove's battery, 393, 

 Smelting of lead, 43. 

 Smith, J. L., on the composition of sper- 

 maceti, 301. 



W., his labors in English geology, 

 226. 

 Snow, red, near Boston, in 1688, 399. 

 Solar eclipse of July 8lh, 1842, 401. 

 Spermaceti, composition of, 301. 

 distillation of, 312. 

 nature of, 315. 

 oxidation of, 318. 

 Stars in the Histoire Celeste, reduction 

 of, 367. 



Lacaille's, reduction of, 368. 

 of the British Association catalogue, 

 368. 



shooting, of April 20—21, 1842, 212. 



Stars, shooting, of Aug. 8th, 9th and 10th, 



1842, 377. 

 Steam navigation in the Pacific, 207. 

 Storms, Dr. Hare's objections to Mr. 



Redfield's theory of, 122. 



Mr. Redfield's reply to, 250. 

 Strong, T., on the principle of virtual 



velocities, 77. 

 Subterranean temperature, 176. 

 Sus Americana, a new fossil mammal, 



143. 



Temperature, subterranean, 176. 



Teschemacher, J. E., on the identity of 

 pyrochlore with microlite, 33. 



Thermal springs in Virginia, 176. 



Thracia inequalis, a new shell, 145. 



Tin veins in New Hampshire, 168. 



Tornado at Morgan, Ohio, in 1823, 299. 

 at Providence, R. I., 137, 263. 

 in N. E. part of Ohio, 278. 



Tornadoes considered as water-spouts, 

 265. 



in the United States, 298. 



Tracy, C, on the oil of Indian corn, 

 403. 



Trimmer's Practical Geology and Min- 

 eralogy noticed, 191. 



Tuomey, M., on a fossil Nautilus, 187. 



V. 



Variation of the magnetic needle in the 



United States, 106. 

 Vaucher, M., death of, 215. 

 Vegetable and animal fibrine, albumen 



and caseine, 402. 

 Velocities, virtual, principle of, 77. 

 Vogel, Dr., obituary of, 215. 



W. 



Ward's treatise on the growth of plants 



in closely glazed cases noticed, 383. 

 Washingtonite, a new mineral, 364. 

 Water-spouts considered as whirlwinds, 



265. 

 Weekes, W. H., voltaic experiments of, 



395. 

 Wheelwright, W., on steam navigation 



in the Pacific, 207. 

 Whirling action of Providence tornado, 



263. 

 Wind, velocity of, 370. 

 Wisconsin, copper ores in, 38. 



lead region, remarks upon, 35. 

 Wood ashes, properties of, 80. 

 Wooldridge, A. S., on the coal mines of 



Richmond, Va., 1. 



Z. 



Zantedeschi's Memoir on the Electro- 

 type, 390. 

 Zinc, ores of in Virginia, 169. 



