INDEX TO VOLUME XLVI 



A. 



Alger, F., on the identity of Beaumont- 

 ite and Lincolnite with Heulandite, 

 233. 



edition of Phillips' Mineralo- 

 gy, 203. 



Allen, Z., on the volume of Niagara 

 River, 67. 



Alps, Prof. Forbes' Travels in, review- 

 ed, 172. 



Dr. Grant's excursion in, 281. 



American Geologists and Naturalists, 

 Association of, sixth meeting, 404. 



American Philosophical Society, Pro- 

 ceedings of, 204. 



Amphide salts, existence of compound 

 radicals in, 57. 



Analytical Engine, Babbage's, 205. 



Andrews, Dr., on the heat of combina- 

 tion, 397. 



Arbroath, extraordinary tide at, 395. 

 B. 



Babbage's Analytical Engine, 205. 



Babington's Manual of British Botany, 

 198. 



Bailey, J. W., on new fossil infusoria, 

 137. 



notice of Ehrenberg's me- 

 moir on microscopic life, 297. 



Baird, W. M. and S. F., catalogue of birds 

 found near Carlisle, Penn., 261. 



description of two 

 new birds of the genus Tymnnula, 273. 



Bald winianae, Darlington's Reliquiae, 192. 



Bakerian lecture, Prof. Forbes's, 200. 



Barometric compensation of the pendu- 

 lum, 393. 



Beaumontite identical with Heulandite, 

 233. 



Beck, L. C, Mineralogy of New York 

 reviewed, 25. 



analysis of hydraulic lime- 

 stones, 30. 



on igneous action as exhib- 

 ited in New York, 333. 



Birds, catalogue of in the vicinity of Car- 

 lisle, Penn., 261. 



two new, of the genus Tyrannula, 

 273. 



BischofFs Lehrbuch der Botanik, 196. 



Bonaparte, L. L., on separating the ox- 

 ides of cerium and didymium, 206. 



Booth and Boye's Encyclopedia of Chem- 

 istry, 202. 



Borate of lime described, 377. 



Boston Society of Natural History, Pro- 

 ceedings of, 203. 



Botanische Zeitung, 200. 



Braun, A., on North American Equiseta, 

 81. 



on the Charae of North Amer- 

 ica, 92. 



British Association, proceedings of the 

 thirteenth meeting, 388. 



catalogue of stars, 

 389. 



Brown, Mr., on an extraordinary tide at 

 Arbroath, 395. 



Buek's Index to DeCandolle's Prodro- 

 mus, 197. 



C. 



Calc spar of Rossie, N. Y., 33. 



Cambridge, England, improvements in, 

 403. 



Canal to connect Lakes Superior and 

 Huron, 213. 



Carbonates, Messrs. Rogers on the anal- 

 ysis of, 346. 



Carbonic acid, solid, heat from, 215. 



Carbonic acid gas and alkaline carbon- 

 ates, decomposition of by the light of 

 the sun, 398. 



Carices, Kunze's Supplement of, 199. 



Cerium and didymium, separation of 

 their oxides, 206. 



Charas of North America, 92. 



Chauvenet, W., solution to a case in sail- 

 ing,79. 



Chemical Society of London, Memoirs 

 of, 201. 



Chemistry, Encyclopedia of, 202. 



Chlorophyl, production of by yellow 

 light, 1. 



Chlorophyllite, description and analysis 

 of, 377. 



Chondrodite, its crystallographic charac- 

 ters, 381. 



Chromatype, a new photographic pro- 

 cess, 396. 



Cider, American, analysis of, 256. 



Columbic acid, Mr. Hayes on the A state 

 of, 166. 



Combination, heat of. 397. 



Comet, third, of 1843,210. 



Comets, physical constitution of, 104. 

 formation of the tails of, 108. 



Contoured maps, 394. 



Couthouy, J. P., reply of Mr. Dana to 

 his " vindication" against the charge 

 of plagiarism, 129. 



review of Mr. Dana's 

 "reply," p. 1, appendix. 



second reply of Mr. 

 Dana, p. 10, appendix. 



