406 



INDEX. 



Dufrenoy, M., analysis of meteorite, 404. 

 E. 



Echinodermata, Agassiz's Monograph of, 

 378- 



Eclipse, solar, of July 8, 1842, 175, 395. 



Eleocharis compressa, a new plant, 50. 



Emerson, G. B., biographical notice of 

 DeOandolle, 217. 



Endiicher's Enchiridion Botanicum, 182. 



Engelmann, G., on the separation of sil- 

 ver or gold from lead, 394. 



Equation, functional, solution of, 69. 



Equations, difTereniial, integration of, 

 273. 



Erratic blocks, 354, 358. 



Ether, perchloric, 63. 



Ethule, perchloraie of the oxide of, 63. 



Extinguisher, spark, 209. 



Faraday, M., letter to Dr. Hare, 291. 

 Fedia umbilicata, a new plant, 50. 

 Feuchlwanger, L., mineralogical notices, 



386. 

 Fine arts, encouragement of, 390. 

 Forshey, Prof , on meteors of April, 1841, 



397. 

 Fossil bones from Oregon, 136. 



discovered in Louisiana, 390. 

 organic remains in Cornwall, 327 

 reptiles, British, 328. 

 Fossils, copying of, by galvanism, 327. 

 Fresh-water shells, preparation of for 



cabinets, 391. 

 Functional equation, solution of, 69. 

 Fungus, microscopic, 195. 



Gaylord, W., destructive thunder storm, 



Sept. 14ih, 1840, 210. 

 Geological reports of the state of New 

 York, 227. 



survey of Louisiana, 390. 

 Geology, Lyell's Elements and Princi- 

 ples of, 191. 



of the Western States, notes 

 upon, 51. 

 Gerboa rat, description of, 334. 

 Gerry, J. T., on tubular concretions of 



iron and sand in Florida, 207. 

 Glacial theory of Agassiz, 346. 

 Glacier barriers, 356. 

 Glaciers, ancient extent of in Switzer- 

 land, 357. 



form, magnitude, and compo- 

 sition of, 347. 



motion of, 349. 

 Glirine animal from Mexico, 334. 

 Gray, Asa, bibliographical notices, 182, 

 375. 



botanical excursion to the 

 moiyitains of North Carolina, &c., 1. 



H. 



Haldeman, S. S., correction to his paper 

 on the Melanians, 2l6. 



notice of the zoological 

 writings of Rafinesque, 280. 

 Hail, James, on the geology of the'West- 

 ern States, 51. 



J. P., register of the thermometer 

 from 1830 to 1839, 368. 

 Hare, Clark, on conversion of carbon into 

 silicon, 193. 



on perchloric ether, 63. 

 R., objections to Mr. Redfield's 

 theory of storms, 140. 



Mr. Redfield's reply to, 299. 

 reply to Prof. Wheweli's de- 

 monstration that all matter is heavy, 

 260. 

 Heat, conduction of, 161. 

 Herrick, E. C , on meteors of April 18- 

 20,1841,397. 



on shooting stars in June, 

 201. 



on shooting stars of Aug. 

 10,1841,202. 

 Hildreth, S. P., meteorological journal 



for 1841, at Marietta, Ohio, 344. 

 Hooker's J^j^rnal of Botany, 185. 

 Hubbard, O. P., chemical examination of 

 Mid Lothian coal, 369. 



on removal of carbonic 

 acid gas from wells, 165. 



on spontaneous combus- 

 tion in vvood ashes, 165, 166. 

 Hurricane of September, 1815, 243. 

 Hydrocyanic acid, process for, 323. 

 Hydrogen, carburetted, in spheres of car- 

 bonate of lime, 214. 



Indices, refractive, 160. 



Indigo, experiments upon, 320. 



Infusoria of the family Bacillaria, 88. 



Infusorial animals, 388. 



Insects of Massachusetts, Harris's report 



on, 380. 

 Invertebrata, two marine, 334. 

 Involution of polynomials, 239. 

 Iron and sand, tubular concretions of, 207. 

 Rogers's Letters on the manufacture 



of. 380. 

 Isotelus megistos, a new trilobite, 366. 



Johnson, Miss L., Botanical Teacher, 

 184,377. 



Johnston, J., on solidifying carbonic 

 acid, 203. 



J. F. W., Applications of Chem- 

 istry and Geology to Agriculture, 187. 



