INDEX TO VOLUME XXl. 



A, 



Agave Americana, 32. 



Age, geological, of reptiles, 359. 



Agriculture in the West, 193. 



Alloys of bismuth, expansion of, in conge- 

 lation, 371. 



of bismuth, tin and lead, 371. 



of tin and lead, 375. 



American Botanical Register, 187. 



Conchology, by Say, 179. 



Locust, D. Thomas on, 188. 



Ammonia in native oxide of iron, 155. 



Analysis of Saratoga and Ballston water, 

 by Dr. Steel, 182. 



Animal poison, remedy for, 158. 



B. 



Birds, cleanliness of, 382. 



songs of, 164. 



Bismuth and its alloys, expansion of, dur- 

 ing congelation, 371. 



tin and lead, alloy of, 371. 



Bitterness, destruction of, by carbon, 374 



Blakeman, Wm. N., on inflammable gas 

 in vfater pipes, 386. 



Blood, preservation of, 370. 



— manganese in, 370. 



Bloodgood, S. DeWitt, on the Hudson and 

 Mohavrk Rail Road, 141, 387. 



Bone caves in France, 56. 



Botany, Am. edition of Lindley's natural 

 system, 389. 



Brewster, David, Dr., on double refrac- 

 tion, 298. 



Brilliancy of primary and secondary rain- 

 bows, 379. 



British association for the promotion of sci- 

 ence, 373. 



Bromine in mineral waters, 366. 



Burnett, Mr., on the functions of vegeta- 

 ble life, 153. 



c. 



CantharideSj vesicating principle of, 69. 



Carbon, power of, to destroy bitterness, 

 374. 



Carpenter, G. W., on cantharides, 69. 



on materia medica, 184. 



Cass, Gen., address to alumni of Hamil- 

 ton College, 180. 



Caustic potassa, 94. 



Vol. XXI.— No 2. 



Caves containing bones, 56. 



Cement for broken vessels, 149. 



Central forces, Prof. Strong on, 66, 334. 



Charcoal, manufacture of, 156. 



Chlorate of potassa, 92. 



Chloric ether, 64, 405. 



Chloride of lime, disinfection by, 149. 



of silver, 369. 



Chlorides, 368. 



Chlorine an antidote to prussic acid, 157. 



Chromium, metallic, process for, 375. 



Cleanliness of birds, 382. 



Clement's experiment, 380. 



Coal formation of Pennsylvania, Mr, Pom- 



eroy on, 342. 

 Cobalt from Chatham mine, 195. 

 Coir fibre, 30. 



Color, produced by electricity, 378. 

 Colors, transfer of, by galvanism, 316. 

 Compression of fluids, 381. 

 Conchology, American, by Say, 179. 



elementary work on, 389. 



marine, Conrad's, 389. 



Conducting powers of liquid gases, 374 



Conductors of lightning for ships, 347. 



Conrad's Marine Conchology, 389. 



Copper ore of Strafford, Vt., 383. 



Cordage, Dr. Mease on vegetable materi- 

 als for, 27. 



Cotton, use of, in dressing wounds, 159. 



Cotton Gin, 209. 



Crocodile, habits of, 163. 



Crotalaria juncea, or sun plant, 27. 



Cutlery, fine edge to, 165. 



Cuvier's Regne Animal, American trans- 

 lation of, 388. 



D. 



Daubeny, Prof., on iodine and bromine in 

 mineral waters, 366. 



Davy, Sir H., original decomposition of 

 potash by, 367. 



Dead bodies, disinfection of, 149. 



Deluge, proofs of, 14. 



Dip of the magnetic needle at St. Peters- 

 burgh, 382. 



Disinfecting powers of increased temper- 

 atures, Dr. Henry on, 392. 



Disinfection by chloride of lime, 149. 



Dixon, Messrs., manufacture of lead pots 

 by, 196. 



Double refraction. Dr. Brewster on, 290. 



Dykes, 13. 



52 



