INDEX. 



423 



Jacobi, on a new principle of analytic 

 mechanics, 170. 



Johnston's Lectures on the application 

 of Chemistry and Geology to Agricul- 

 ture, 189. 



Journal of Practical Chemistry noticed, 

 191. 



Juncus cylindricus, 83. 



K. 



Kalm, P., correspondence with Dr. Col- 

 den, 105. 



Kane's Elements of Chemistry, Ameri- 

 can edition, 192. 



L. 



Lakes, North American, action of, 368. 

 Laugier's discovery of a cornet, 211. 

 Leafing of plants, 419. 

 Lederer, Baron Louis, decease of, 216. 

 Light, elliptically polarized, 171. 



influence of on the germination of 



seeds and growth of plants, 352. 



latent. Dr. Draper's discovery of, 202 

 Limestone, blue fossiliferous, 282. 



cliff, 298. 

 Lindernia saxicola, 83. 

 Linnaeus, C, letter to Dr. Colden, 111. 

 Linsley, J. H , catalogue of the birds of 



Connecticut, 249. 

 Litton, A., on a double sulphite of the prot 



oxide of platinum and soda, 274. 

 Locke, J , notice of a new trilobite, 346. 

 Lockwood, M. B., on the variation of the 



magnetic needle at Providence, R. L, 314. 

 Lund, Dr., on fossil human bones found in 



South America, 277. 

 Lycopodiacese, Spring's monograph of, 196. 



M. 



Magnesia in water, 307, 309. 

 Magnetic needle, variation of, 314. 

 Maize, sugar in the stalks of, 215 

 Mallet, on the action of air and water on 



iron, 355. 

 Mammalia, new fossil, Mr. Owen's remarks 



on, 341. 

 Marlite in the blue fossiliferous limestone, 



233. 

 Martius, on the life and labors of A. P. De 



Candolle, 217. 

 Mechanics, analytic, new principle of, 170. 

 Megalonyx, distinguished from Mylodon,341 

 Mercer, on catalytic action, 351. 

 Mesotype, found at Harlpm, N. Y., 57. 

 Meteoric observations of Aug. 10, 1842, 203. 

 of December, 210. 

 of November, 209. 

 Meteorological enterprise of Prof Espy, 212. 

 journal at Marietta, Ohio, 3 17 

 observations at Inverness, 153. 

 register, at Jackson, La , 49. 

 at Singapore, 151. 

 Mineralogical systems, 214. 

 Minerals, trappean, 51. 

 Morse, S. F. B., on the passage of two or 

 more electrical currents over the same 

 conductor, 418. 



Moser, Prof., discoveries in photography, 159. 

 Dr. Draper's reclamation, 202. 

 Mounds, animal-shaped, in Wisconsin, 21. 



in Indiana, 313. 

 Mountains, height of, ascertained by means 



of the thermometer and barometer, 12. 

 Muhlenbergia filipes, 83. 

 Murchison, R. 1 , on the salt steppe of Oren- 

 burg, and the freezing cavern of llletz- 

 kaya Zatchita, 205. 



Silurian System, 193. 

 Mylodon, distinct from Megalonyx, 341. 



N. 



Natural History, contributions to, by the Ex- 

 ploring Expedition, 403. 



Boston Journal of, 193. 



of New York, report on, 188. 

 Nebulae delineated by photography, 375. 

 Needle, magnetic, variation of, 314. 

 New York, report on its natural history, 188. 



state reports, 420. 

 North American Sylva, Nuttall's, 194. 

 Nutmeg, cultivation of in Singapore, 153. 

 Nuttall's North American Sylva, 194. 



O. 



Obituary of Baron Lederer, 216. 



Observatory, astronomical, at Rome, 374. 



Orenburg, salt steppe of, 205. 



Orycterotherium Missouriense, bones of, de- 

 scribed, 69. 



Owen, D. D., on geologv of western states, 

 365. 



R., on new fossil mammalia, 341. 



P. 



Palceonisci, found in New Jersey, 135. 



Parnell's Elements of Chemical Analysis, 

 190. 



Pennsylvania, Entomological Society of,199. 



Percival's Report on the Geology of Con- 

 necticut noticed, 187. 



Photography, applied to astronomy, 375. 

 curious facts in, 159. 

 spectral appearances connected 

 with, 204. 



Pisolitie balls, 233. 



Plants, inorganic elements of, 189. 

 leafing of, 419. 

 new and rare, of North Carolina, 80. 



Platinum and soda, double sulphite of the 

 protoxide of, 274. 



Plummer, J. T , on the suburban geology of 

 Richmond, Indiana, 231. 



Potash, action of, upon cliolesterine, 60. 



Powell, on elliptically polarized light, 171. 



Prehnite, found in New Jersey, 53. 



R. 



Rain-drops, fossil impressions of, 136. 

 Kedfield, W C , on fish beds and a fossil 



foot-mark in New Jersey, 134. 



reply to Dr. Hare's strictures 



on Prof Dove, 3 U. 

 Regnault's researches upon the dilatation of 



gases noticed, 63. 

 Richmond, Indiana, suburban geology of, 



231. 



