INDEX. 



407 



Hydraulic limestones in New York, 29. 

 analysis of, 30. 



I. 



Iceberg theory of drift, 169. 



Ice mountain in Wallingford, Vt, 331. 



Igneous action, as exhibited in New 



York, 333. 

 Infusoria, new fossil, 137. 

 Iolite, analysis of, 383. 

 Iron, ores and manufacture of in New 



York, 25. 



meteoric, from Otsego County, 



N.Y.,401. 



J. 



Jackson, C. T., analysis of Chlorophyl- 

 lite, 378. 



of Iolite, 383. 

 Jussieu's Cours Elementaire de Botan- 

 ique, 195. 



K. 



Kane, on the existence of compound rad- 

 icals in the amphide salts, 57. 



Kent, E. N., new process for gallic acid, 

 78. 



Knox, T., on the quantities of rain in 

 the S. W. of Ireland and in Suffolk, 

 England, 394. 



Kunze's Supplemente der Reidgr&ser, 

 199. 



Kyanite, analysis of, 383. 



L. 



Lapham, I. A., on elevations in Wis 



consin, 258. 

 Larcom, Capt., on contoured maps, 394 

 Lathrop, S. P., on an ice mountain in 



Wallingford, Vt., 331. 

 Lead ores in New York, 28. 



corroded by spring water, 398. 

 Ledebour's Flora Rossica, 198. 

 Light, elliptic polarization of, 390. 



indigo, its agency on the move 

 ments of plants, 7. 



yellow, action of in producing the 

 green color, 1. 



effects of on elementary substan 

 ces, 390. 



influence of on the growth of 

 plants, 397. 



of the sun, decomposition of car- 

 bonic acid gas and alkaline carbonates 

 by, 398. 

 Lime, borate of, described, 377. 

 Limestones, hydraulic, in New York, 29 

 Lincolnite identical with Heulandite 



235. 

 Linsley, J. H., catalogue of reptiles of 

 Connecticut, 37. 



obituary of, 216. 

 Lloyd, Prof., on the regular variations of 



the earth's magnetic force, 391. 

 Lyell, C, on the geology of the valley 

 of the St. Lawrence, 314. 



Lyell, C, on the tertiary strata of Mar- 

 tha's Vineyard, 318. 



geological position of the Mas- 

 todon and other fossil remains, 320. 



M. 



Magnetic force of the earth, variations 

 of, 391. 



needle, variation and dip of at 

 Nantucket, 157. 



Maps, contoured, 394. 



Martha's Vineyard, tertiary strata of, 318. 



Mastodon, geological position of its re- 

 mains, 320. 



Mather, W. W., on the variation in the 

 length of the day, 344. 



Megatherium, remains of in Indiana, 294. 



Menabrea's Sketch of Babbage's Ana- 

 lytical Engine, 205. 



Meteoric iron from Otsego Co., N.Y., 401. 



Meteorological journal at Marietta, Ohio, 

 for 1843, 277. 



register, electro-magnetic, 392. 



Microlite, analysis of, 159. 



Microscopic life, Ehrenberg's memoir 

 on, 297. 



Mineralogy of New York, Beck's, re- 

 viewed, 25. 



Dana's System of, reviewed, 362. 



Mitchell, W., on the variation and dip of 

 the magnetic needle at Nantucket, 157. 



Monazite and Sillimanite, 207. 



Mont Blanc, Dr. Grant's ascent of, 283. 



Mustela pusilla, its habits, 241. 



N. 



New York, Beck's Mineralogy of, re- 

 viewed, 25. 



Geological Reports, review 

 of, 143. 



Niagara River, volume of, 67. 



Nomenclature, geological, 18. 

 numerical, 215. 



Norton, W. A., on the formation of the 

 tails of comets, 104. 



Norton, J. P., analysis of Sillimanite, 382. 



Numerical nomenclature, 215. 



O. 



Obituary of Dr. Richard Harlan, 216. 



of Rev. James H. Linslev, 216. 

 of Col. John Trumbull, 216. 

 Ornithichnites, tracks of in the sand- 

 stone of Turner's Falls, 76. 

 Owen, D. D., review of New York geo- 

 ological reports, 143. 



P. 



Parallelogram of forces, Prof. Twining 



on, 324. 

 Pendulum, barometric compensation of, 



393. 

 Percival, J. G., the original observer of 



the crescent-formed dykes of trap in 



Connecticut, 205. 



