404 



INDEX. 



Daubeny, his reply to Prof. Bischof, on 



volcanoes, 78. 

 Dent, E. I. chronometrical determination 



of longitude of New York, 400. 

 Desmarest, A. G., biog. notice of, 124. 

 Dewey, Chester, on polished limestone of 



Rochester, N. Y. 240. 



temperature of lake On 



tario, 242. 

 Dipping needle, mode of adjusting, 277. 

 Drury, Thos., on electrical excitement 



of leather by friction, 197. 

 Dudley coal mines, excursion to, 390. 



E. 



Earth, heat of the interior of, 357. 



Earths carried over in distillation, 398. 



Earthquakes at Tabriz, 351. 



natural history of, by Prof 

 G. Bischof, 41. 



Echinodermata, Agassiz's work on, no- 

 ticed, 369. 



Editor, Senior, note on the Limulus Po- 

 lyphemus, 27. 



Editors, remarks on a tornado in Alle- 

 ghany Co. N. Y. 90. 



on effects of lightning on packet 

 ship New York, 323. 



geological and other notices 

 from Sir R. K. Porter's Travels, 347. 



notices of geological surveys of 

 the States, 375. 



restoration of magnetism to 

 compass needles, 325. 



notice to subscribers and read- 

 ers, 200. 



Ehrenberg's discoveries concerning fos- 

 sil animalcules, 116. 



Electrical excitement produced in leath- 

 er by friction, 197. 



Emmons, Prof E., on heights of moun- 

 tains in New York, 85. 



Encke's comet, observations in 1838, 191. 



Equivalents, chemical, of certain gases, 

 368. 



Essex Co. Nat. Hist. Soc, notice of their 

 Journal, 187. 



Etching on glass, by photographic pro- 

 cesses, 178. 



Exploring Expedition, U. S. progress of 

 189, 398. 



Explosions in American coal mines, 387. 



Explosion of hydrogen and oxygen, re- 

 marks on, 104. 



Eudiometer, new, by Dr. R. Hare, 383. 



Faraday's analysis of Cold Bokkevcld 



meteorites, 190. 

 Fat of animals, mode of preserving, 194. 

 Felis borealis {!) taken in Conn., 194. 

 Fire-damp, chemical examination of, 



201. 

 Footsteps in new red sandstone, 223. 



Formtila for finding the weight and vol- 

 ume in a mixture of two bases, 289. 



Fossil tree at Granton, 363. 



Fox, Rev. Chas., notices of British Nat- 

 uralists, 136. 



Fox, R. W., on formation of metallic 

 veins, 199. 



Frodsham, W. J., on vibrations of pen- 

 dulums, 278. 



Fulminating powder, by Dr. Hare, 268. 



Fyfe, Andrew, on photographic pro- 

 cesses, 175. 



G. 



Galvanic ignition of gunpowder in blast- 

 ing, by Dr. Hare, 269. 



Gaylord, Willis, on mechanical vapori- 

 zation of earths, 398. 



account of a tornado in 

 New York, 91. 



Geological Dynamics, Prof. Whewell 

 on, 234. 



Geological Society of London, officers 

 of, 129. 



Geological Society of London, Whe- 

 well's address before, 116. 



Surveys of the States, noticed, 

 375. 



Gibbs, Prof. J. W., on the Greek conju- 

 gations, 112. 



Goethe on the metamorphosis of the or- 

 gans of plants, 187. 



Greek conjugations, remarks on, 112. 



Green, Prof. J., description of a new tri- 

 lobite, 40. 



Green, Prof. J., on trilobites in general, 

 25. 



remarks on Calymene 

 Bufo, 32. 



H. 



Haile, A. B., map of path of New Ha- 

 ven tornado, 343. 



Hamilton, J., on terrestrial magnetism, 

 100. 



Harden, Dr. J. M. B., formula for anal- 

 j'sis of mixtures, 289. 



Hare, Clark, on reaction of sulphuric 

 acid with essential oil of hemlock, 246. 



Hare's compound blowpipe, remarks on, 

 104. 



Hare, Dr. Robert, on extrication of bari- 

 um, calcium and strontium, 267. 



a fulminating pow- 

 der, 268. 



galvanic ignition of 

 gunpowder, in blasting rocks, 269. 



a new eudiometer, 

 383. 



a new method of 

 purifying oil of turpentine, 399. 



Heat of the interior of the earth, 357. 



Heights measured by the boiling of wa- 

 ter, 19. 



