INDEX. 
421 
Birds, temperature of, 121. 
“ voice of, 189. 
“ wings of, 100, 304. 
Bivalve, see Clam, Lamellibranchiata, 
Oyster. 
Blackbird, 339. 
Blastema, 33. 
Blastula, 19S, 165. 
Blatta, 297. 
Blood, 97. 
“ circulation of, 103. 
“ corpuscles, 98-100, 62-65. 
“ development of, 200. 
“ functions of, 101. 
“ of Invertebrates, 97. 
“ rate of motion of, 110. 
“ temperature of, 100. 
“ of Vertebrates, 97. 
“ vessels, 103. 
Blubber, 348. 
Bluefish, 312, 284. 
Boa, 54, 73, 37. 
Bombus, 304. 
Bombyx, 303. 
Bone, composition of, 147. 
“ development of, 203. 
“ structure of, 36, 7, 8. 
Bos, see Ox, Cow. 
Brachiopoda, 266, 221, 222. 
Brachvcephalic, 393. 
Bradypus, 344. 
Brain, 170,132,137-145. 
“ case of, see Skull. 
“ development of, 204. 
“ functions of, 173. 
“ parts of, 170. 
“ weight of, 170. 
Brain-coral, 252, 204. 
Brine-shrimp, 284. 
Bronchus, 119, 82-83, 86. 
Bryozoa, see Polyzoa. 
Bubble-shell, 274, 231. 
Buccinum, 278, 29, 228. 
“ see Whelk. 
Budding, 192. 
Bufo, 318. 
“ see Toad. 
Bugs, mouth of, 59. 
“ see Hemiptera. 
Bulimus, 275, 233. 
Bulla, 274, 231. 
Butterfly, 300, 273. 
“ anatomy of, 43. 
“ metamorphosis of, 208, 172. 
“ mimicry of, 217. 
“ mouth of, 59, 23. 
“ scales of, 271. 
Byssus, 271. 
Caddis-fly, 295. 
Caecilia, 318. 
Caecum, 51. 
Calcispongia, 246. 
Camel, 100, 352, 65. 
Cameo-shell, 278, 237, 
Canaliculi, 37, 8. 
Cancer, 2S7. 
Canine teeth, 69, 34, 35. 
Capillaries, 104, 66, 68. 
Caprinmlgus, 335. 323. 
Capybara, 346, 335. 
Carabus, 298. 
Carapace, 322,115. 
Cardium, 227, 227. 
Carinatae, 328. 
Carnivora, 353, 90, 92,106,108-110, 128, 
142, 346-350. 
“ feet of, 128. 
“ teeth of, 70. 
Carp, 48,102. 
Cartilage, 36, 5, 6. 
Cassis, 278, 237. 
Cassowary, 327. 
Castor, 346, 337. 
Cat, 63, 355. 
“ brain of, 142. 
“ teeth of, 70. 
Caterpillar, 301, 275. 
“ anatomy of, 78, 40. 
“ circulation in, 105, 69. 
“ false legs of, 172. 
“ head of, 303, 276. 
“ heart of, 105, 69. 
“ jaws of, 53, 276. 
“ locomotion of, 162. 
“ muscles of, 156. 
“ nervous system of, 169,136. 
“ see Butterfly, Insecta, Lepi- 
doptera. 
Catfish, 316, 291. 
Cebus, 357, 352. 
Cell, 31, 1. 
Cement, 38. 66, 31. 
Centipede, 53, 2S7, 259. 
Centrum, 140. 
Cephalization, 225. 
Cephalodiscus, 393. . 
Cephalopoda, 278,16, 47, 151, 247-249. 
“ see Cuttlefish, Squid. 
Cephalo-thorax, 131, 2S2. 
Ceratodus, 317. 
Cerebellum, 171,173, 137-144. 
Cerebrum, 170,173,137-145. 
Ceryle, 335, 327. 
Cetacea, 348, 30, 341, 342. 
“ see Whale. 
Chalaza, 193,162. 
Chalk, 11, 242. 
Chameieon, 54, 322. 
“ tongue of, 61. 
Cheiroptera, 346, 339, 340. 
Chelce, 2S3. 
