INDEX TO VOLUME XXV- 



A. 



Aerial Navigation by H. Strait, 15. 

 Agaric mineral, — locality of, 347. 

 Agave Americana and other varieties, 330. 

 Algebra, Introduction to, 12th Ed. by flev. 



J. Day, Yale Col. 425. 

 American Almanac, for 1834, 425. 

 Analysis of a new mineral species, Lede- 



rerite, 78. 



square numbers, 87. 



Architectural improvements, 304. 

 Asaphus, — varieties of, 335. 

 Astronomical observations, by M. L. F. 



Wartmann, 191. 

 Atlantic Ocean, Storms of, 114. 

 Atmosphere, currents of, 124. 



general view of, 123, 133 



stratification of, 128. 



Augite, green and white, localities of, 347, 



348. 



B. 



Bakewell's Geology, 2ud. Am. from 4th. 



Lon. Ed., 428. 

 Balm, sweet, pink dye from flowers of 413. 

 Barometer, causes of its fluctuation, 129. 

 its use in storms, 117, 120, at 



sea, 198. 

 its variations not necessarily 



connected with the fall of rain, 130. 

 Barytes, new locality of sulphate of, 346. 

 Biela's Comet, 191. 



Botanical Notices of Middle Florida, 69. 

 Brazil, new work on Zoology of, 428. 

 Bridgewater treatises, 428. 

 British Association for the advancement 



of science, notice of its third meeting, 



411. 

 Brucite, new locality of, 347. 

 Building, various points to be observed in, 



304. 



Calcareous spar, rhombic, locality of, 349. 

 Caloric, a cause of galvanic currents, 269. 

 Calymene Blumenbachii, 346. 

 — — — — -odontocephala, 334. 



Vol. XXV.— No. 2. 



Canals of Ohio, 241. 



Carbonic acid, — carb. oxide obtained free 



from, 344. 

 oxide obtained free from Carb. 



acid, 344- 

 Caricography, Prof. Dewey on, 140. 

 Cashmere, Angora shawl goat, 208. 

 Channels of creeks and rivers in Ohio, 



223. 

 Cholera, noticesof the, 174. 

 Circleville, ancient works in, 238. 

 Climate as atfected by currents, 133. 

 of China, 133, 134. 



Coal formation, marine shells in, 199. 



on Meigs's creek, Ohio, 222, 



on the Muskingum, 220, 228, 



Combustion, Samuel Moray on, 146 



Compendium of Nat. Philosophy, by Prof. 

 Olmsted, 214. 



Concholoffy, new work on, 423. 



Conrad, Tim. A., on new species of fresh 

 water shells, 338. 



Copper protected by iron from action of 

 sea water, 203. 



Crawe, Dr., on Mineralogy of Jefferson 

 and St. Lawrence Cos. N. Y. 346. 



Croom, H. B., on Botany of Middle Flori- 

 da, 69. 



Currents, counter direction of in Southern 

 hemisphere, 121, 128. 



of the atmosphere, 124, 133. 



ocean, 130. 



D. 



Dal Negro, Prof., Experiments with Ele- 

 mental Electromotors, 193. 



De Luc's columns. Dr. Hare, on con- 

 struction of, 136. 



Deserts caused by certain atmospheric 

 currents, 134. 



Dewey, Prof, on Caricography, 140. 



Diving Bells, descent in, 196. 



Ducatel, Dr. J. T., on Potassium and So- 

 dium, 90. 



E. 



Eaton, Prof. A., on geology and meteor- 

 ology west of the Rocky Mountains, 

 351. 



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