INDEX. 



Acantharcus pomotis, 367, 435. 

 Acris crepitans, 330. 

 Adder, spotted, 302, 303. 

 ^Egialitis melodus, 201. 

 Agassiz, L., 271, 418. 



American, testudinata, 251, 256. 



habits of spade-foot toad, 346. 

 Agclaeus phoeniceus, 117. 

 Aix sponsa, 237. 

 Albany, New York, 398. 

 Alee Americanus, 17. 

 Amiurus catus, 435. 

 " American Naturalist," 15, 304, 382, 



388. 



Anguilla rostrata, 428, 435. 

 Ants, nests of, in wood, 65. 

 Aphrodederus sayanus, 388, 435. 

 Ardea exilis, 22, 227. 

 Argyll, Duke of, songs of American 



birds, 93. 



Aromochelys odoratus, 267. 

 Arvicola riparia, 65. 

 Assunpink Creek, 364, 414. 

 Audubon, J. J., winter pelage of 

 weasels, 27. 



song of saw-whet owl, 220 



Baird, S. R, 383. 



Bartram, John, on habits of black 

 bear, 18. 



William, 10. 



Bascanion constrictor, 284. 

 Batrachians, intelligence of, 345. 



short studies of, 312. 

 Bear, black, 17, 18. 

 Beaver, 17, 19. 



Beaver-tree, magnolia glauca, 19. 

 Beeches, three, 191. 

 21 



Belone acutirostris, 397, 435. 

 Bill-fish, 397, 435. 

 Birds, 93. 



ancestral form of, 124. 



migration of, 97, 164. 



nests of, 124. 



songs of, 136. 

 Bison, 17. 



Bison Americanus, 17. 

 Bittern, 234. 



least, 227. 

 Black-bass, 367. 

 Black-birds, red-winged, 117. 

 Blarina brevicauda, 64, 449. 

 Botaurus lentiginosus, 234. 

 Boleosoma Olmstedi, 358. 

 Bream, copper-nosed, 375. 

 Bubo Virginianus, 221. 

 Bufo Americanus, 337. 

 Butorides virescens, 234. 



Campanius, Thomas, account of rat- 

 tle-snakes in New Jersey, 

 283. 



Canada, 353. 



Canis lupus, 17. 



Cariacus Virginianus, 17. 



Carphophiops amoena, 306. 



Carver, Captain Jonathan, on habits 

 of tree-toads, 329. 



Castor fiber, 17, 19. 



Catalpa, seed-vessels of, 199. 



Cat-birds, 142. 



Cat-fish, 425, 435. 



Catostomoids, 422. 



Cats, wild, 22, 24. 



Centropyxis aculeata, 381. 



Cervus Canadensis, 17. 



