Index. 



Beak of squid, 141. 

 Bear, 279, 280, 281. 

 Beavers, 262. 

 Bedbug, 24. 

 Bee glue, 47. 

 Bees, short-tongued, 49. 

 Bell animalcule, 294. 

 Belostoma, 20. 

 Benacus, 20. 

 Bend of wing, 209. 

 Berry lobster, 74. 

 Bighorn sheep, 270. 

 Bile duct of pigeon, 215. 



Sac of snake, 201. 

 Bill of woodpecker, 237. 

 Bird, external features of, 210. 

 Birds, fossil, 242. 



Game, 244. 



Value of, 244. 

 Bison, 272. 

 Bittern, 229. 

 Black bass, 172. 

 Blackbirds, 239. 

 Black snake, 200. 

 Blacktail deer, 274, 275. 

 Bladder of crayfish, 70. 



Urinary, of perch, 157. 

 Bladder worm, 350. 

 Blastostyle, 321. 

 Blind snake, 195. 

 Blister beetle, 41, 52. 

 Blood of earthworm, 94. 

 Blood tubes in earthworm, 94. 

 Blowfly, 35. 

 Bluebird, 240, 241. 

 Blue racer, 200. 

 Bobcat, 279. 

 Bobolink, 239. 

 Bob-white, 231. 

 Body cavity of earthworm, 89. 



Of hydra, 314. 



Of starfish, 335. 

 Borers, 40. 

 Botfly, 35. 

 Bowfin, 178. 

 Boxshell turtle, 205. 

 Brachiopods, 354. 

 Brachyura, 84. 

 Braconids, 52. 

 Brain of fish, 285. 



Brain of mouse, 285. 



Of pigeon, 217. 



Of snake, 285. 



Of sparrow, 285. 



Of toad, 285. 



Of vertebrates, 285. 

 Branchiostegal membrane, 160. 

 Branchiostoma, 151. 

 Breastbone of pigeon, 211. 

 Bristles of earthworm, 90. 

 Brittle stars, 331, 337. 

 Brood comb, 47. 

 Browsing, 277. 

 Bud of hydra, 314. 

 Budding of hydra, 317. 



Of hydroid, 320. 

 Buffalo, 272. 

 Buffalo fish, 166, 173. 

 Bugs, 20. 

 Bulb, spinal, 285. 

 Bumblebees, 49. 

 Butcher bird, 240. 

 Byssus, 119, 125. 



Cabbage butterfly, 27. 



Cake urchin, 343. 



Calcareous sponge, 308. 



Camel, 277. 



Canal, marginal of jellyfish, 323. 



Canvasback, 228. 



Capsule, egg, of earthworm, 88. 



Thread of hydra, 315. 

 Carapace, 205. 

 Carinatoe, 222, 223. 

 Carnivora, 278. 

 Carp, 166, 173. 

 Carpet beetles, 41. 

 Carrion beetles, 41. 



Crow, 236. 



Eaters, 217. 

 Cassowary, 222. 

 Catbird, 240. 

 Catfish, 166, 173. 

 Cats, 278. 

 Caucasian, 282. 

 Ceca of grasshopper, 7, 9. 



Of perch, 157. 



Of pigeon, 216. 

 Cecropia, 30. 

 Cecum of man, 283. 



