INDEX. 



Earth, magnetism of, 398. 



Eaton, Prof., on the coal region of New 



York and Pennsylvania, 21. 

 Editor on the anthracite of Penn., 1. 



his elements of Chemistry, 343. 



the safety of steam boats, 143. 



Electric currents, shocks by, 180. 



pile, theory of, 375. 



Electro-magnetic experiments, 329, 399. 

 Elements of Chemistry, notice of, .343. 

 Encyclopedia of plants, 161. 



F. 



Faust, E., on adulterations in chemical 

 substances, 70. 



Feuchtwanger, Dr. L., on tests for ar- 

 senic, 339. 



Fever, Dr. Smith on, ?63. 



Finch, J. on the mineralogy of St. Law- 

 rence county, 220. 



Fishes, rules for the preservation of, 52. 



memoir on the nerves of, 387. 



Fluids, immiscible ones, 391. 



revolving motion in, 391. 



Flying in the air, 395. 



Forman, J. on salt formations, 141. 

 Formic acid, the production of, 374. 

 Fulminating silver, 379. 



G. 



Gale, Dr. on the preparation of potas- 

 sium, 205. 

 Gases, expansion of, 397. 

 Geology, 380. 



■ of the Hartz, 108. 



Germination upon mercury, 202. 

 Gould, David, his demonstration of the 



binomial theorem, 50. 

 Greece, mode of farming in, 193. 

 Guernsey, J. A., on a mastodon tusk, 358. 



H. 



Haematite of Sahsbury, 323. 



Hail, formation of, 396. 



Hare, Dr., description of his Laboratory, 

 21. 



Hare Dr., his new pyrophorup, 173, 



Hartz, mineralogy and geology of, 105. 



Hay changed to siliceous glass by light- 

 ning, 395. 



Hayden, Dr. on mineral springs in Penn. 

 97. 



Heat, lightning, nature of, 187, 



Heat of Planetary space, 377. 



Henry, Prof J. electro-magnetic experi- 

 ments by, 399. 



Hitchcock, Prof, lectures on Dyspepsia 

 by, 167. 



Holmes, Dr. notice of hydrous Antho- 

 phyllite of New York by, 359. 



Homogeneous and heteromorphous com- 

 pounds, 383. 



Hydrophobia, 214. 



Hydrostatic balance, 185. 

 press, 185. 



Hygiene, lectures on, 195. 



I. 



Iodic acid combined with vegetable al- 

 kalies, 371. 

 Iodide of potassium, impurities in, 74. 

 Iodine, atomic weight of, 383. 

 Indian corn, origin of, 186. 

 Infants, mortality of, 192. 

 Insects, mode of preserving, 213. 

 Iron tilings, cement from, 190. 



meteoric, of Bohemia, 384. 



preservation of from rust, 203. 



pyrites, white and common, 387. 



works of Salisbury, 322. 



Johnson, E. F. on land surveys, 131. 

 R. Prof on steam, 292. 



Joslyn, B. F. on magnetism, 393. 



K. 



Kendall, T. improvements in Surveyor's 

 compass by, 317. 



Labarraque's mode of using chloride of 

 soda, 365. 



Laboratory of Dr. Hare, 26. 



Land surveys, 131. 



Lead, red, 370. 



Lehigh rail road, 9. 



Lemon juice, impurities in, 75. 



Lightning rods, ISS. 



Lighting, economic mode of, 383. 



Living molecules, 393. 



Long Island Sound, chart of, 153. 



Lyceum of Nat. Hist, of New York, pro- 

 ceedings of, 159, 353. 



M. 



IMadrid, science in, 144 , 



