404 



INDEX. 



Daubeny,liis reply to Prof. Biscliofj on 

 volcanoes, 78. 



Dent, E.I. chronometrical determination 

 of longitude of New York, 400. 



Desmaresl, 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 coalmines, excursion to, 390. 



E. 



Earth, heat of the interior of, 357. 

 Earths carried over in distillalionj 398. 

 Earthquakes at Tabriz, 351. 



natural history of, by Prof 

 G. Biscbof,41. 

 Echiaodermata, Agassiz's work on, no- 

 ticed, 3G9. 

 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 1S3S, 191, 



Eqinvalcnts, chemical, of certain ^ases, 

 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. E. Hare, 383. 



Faraday's analysis of Cold Bokkeveld 



meteorites, 190. 

 Fat of animals, mode of preserving:, 194. 

 Felis boreaIis(1J taken in Conn., 194. 



Fire-damp, chemical examination of, 

 201. ' 



Footsteps in new red sandstone, 223. 



Formula for finding the freight 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* 

 weirs 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, 119. 



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

 lobite, 40. 



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

 25. 



Bufo, 32. 



remarks on Calymene 



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- 

 ysis 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 stroniiura, 267. 



a fulminating pow- 

 der, 2G8. 



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. 



