INDEX. 



413 



Gould, A. A., on Californian shells, 396. 



Graham, Prof., theory of voltaic circle, 

 117. 



Gray, on several North American Orchi- 

 dace£e,306. 



Green, H., on vegetable organography, 

 «&c., 49. 



Green, Prof J., on inferior surface of Ca- 

 lyinene Bufo, 410. 



Gritiith, Mrs. M., on halo or fringe, 22. 



Grove, W. R., on small galvanic battery, 

 116. 



GutzlafF, Rev. C, letter on Chinese wri- 

 ting, to Mr. Du Ponceau, 398. 



Gymnotus electricus dissected, 197. 



H. 



Hamilton, on Katakekaumene, 206. 

 Halo or fringe surrounding bodies, 22. 

 Hare, Dr. Robert, on barium, strontium, 

 and calcium, llo. 



on blasting rocks by galvanism, 

 188. 



his compound blowpipe, 173. 

 on calcium, 181. 

 letter to Faraday, 1. 

 large mass of platinum melted, 

 155, 163. 



notice of tornadoes, 73, 400. 

 decomposition and recomposi- 

 tion of water, 336. 

 Hayes, A. A., on the action of metallic 

 tin on solutions of muriate of tin, 408. 

 on new minerals, 410. 

 Hays, Dr., on catoptric examination of 



the eye, 188. 

 Henry, Prof. J., contributions to electri- 

 city and magnetism, 170, 209, 404. 

 new capillary action, 180. 

 currents produced from ordinary 

 electricity, 232. 



lateral discharge of electricity, 

 154. 

 Herapath, J., Railway Magazine, &C.205. 

 Herrick, E. C, aurora borealis, 260. 



meteoric observations, Novem- 

 ber and December, 1839, 377. 



parasite of elm tree moth, 385. 



shooting stars of Aug. 10 and 



11,1839, as seen in Canton, China, 301. 



shooting stars of Aug. 9 and 10, 



203. 



Herschel on dissevered rays of light, 110. 



Hildreth, S. P., Meteorological Journal, 



273. 

 Hubbard, Prof O. P., on removal of car- 

 bonic acid from wells, 206. 

 Human race, extinction of, 130. 

 Humbert, Jonas, Jr., compound electro- 

 magnet, 205. 



I. 



Ichthyosaurus at Strensham, Eng., 126. 

 Idocrase, composition of, 120. 



Indigestion, alkaline, 134. 

 Induced currents of the third, fourth, and 

 fifth order, 226. 



from ordinary electri- 

 city, 232. 

 Induction, electro-dynamic, 209. 



conditions which influence, 

 212. 



of secondary currents, 215. 



at a dis- 

 tance, 219. 

 Infusoria, analysis of M. Ehrenberg's 



discoveries, 405. 

 Iron, steel and malleable iron, how differ- 

 ing in composition, 121. 

 Ivory deprived of earthy matter, 134. 



Jackson, Dr. C. T., analysis of serpen- 

 tine marble from Vermont, 198. 



Jackson, Dr. C. T., analysis of new mine- 

 ral, 198. 



letter to him on the Coteau des 

 Prairies, 138. 



his oxy-alcohol lamp, 335. 



Japanese and English vocabulary, 163. 



Johnson, Prof., analysis of anthracite and 

 iron ore, 382. 



Johnston, Prof. J., carbonic acid solidify- 

 ing apparatus, 297. 



Jones, Wm. G., on a new compensating 

 pendulum, 274. 



K. 



Katakekaumene described, 207. 

 Kirtland, Dr., description of fifteen new 



species of fish, 392. 

 Kupffer, A. T., observations meteorolo- 



giques, 380. 



Lacaille's Coelum Australe Stelliferum, 



reduction of stars in, 94. 

 Lamp of safety, by Baron Mesnil, 115. 



of Dr. Jackson's, oxy-alcohol, 335. 

 Lardner on resistance of air to rail cars, 



136. 

 Earned, Rev. Wm. A., translation of Dr. 



Cotta's article of footmarks, 255. 

 Lathrop, Prof, theory of the earth, 68. 

 Latitudes of various places, 168. 

 Lea, J., on new species of Melania, 175. 

 M. Carey, analysis of chromic iron, 



243. 

 Lead, white, theory of formation of, 119. 

 Lee, A., M.D., letter to him on gems, 61. 

 Letter of Dr. Hare to Mr. Faraday, 1. 

 Letter of John Strang to Prof. Siiliman on 



British Association, 406. 

 Lewenberg, Leon, his telescope, 379. 

 Lightning, efliects of, on three of H. B. 



M. ships, 112. 



