382 



INDEX 



Brain of crayfish, 130 ; of perch, 213. 



Branch defined, 27. 



Branchiae, 91. 



Brittle stars, 95. 



Budding, reproduction by, 362. 



Buffon, 377. 



Bugs, 175 ; squash, 175, 176. 



Bullbat, 289. 



Bullfrog, 240, 244. 



Bumblebees, 193. 



Bureau of Fisheries, 226 ; of Ento- 

 mology, 196. 



Butterflies, 178, 179, 180; swallow- 

 tail, 180 ; monarch, 180, 356 ; vice- 

 roy, 358. 



Buzzard turkey, 286. 



Caeca, pyloric, 91. 



Caecilians, 237. 



Caecum, 306. 



Camel, 322. 



Campanularian hydroids, 50. 



Canals, radial, 38, 92 ; ring, 92 ; stone, 



92 ; inhalant, 38. 

 Capillaries, 129. 

 Carapace, 124, 262. 

 Carbon, 7, 8. 

 Carmine, 196. 

 Carnivora, 323. 

 Carpet beetles, 188. 

 Carrion crow, 286. 

 Cassowary, 280. 

 Cat, classification of, 28. 

 Catfish, 217. 

 Caviar, 218. 

 Cells, number of, 10; nature of, 11; 



defined, 17 ; plant, 12 ; animal, 13. 

 Cellulose, 7. 



Cenozoic, age of mammals, 351. 

 Centipeds, 153. 

 Cephalopoda, 118. 

 Cephalothorax, 124. 

 Ceratodus, 223. 

 Cercaria, 65, 66. 

 Cerebellum, 309. 

 Cerebrum, 308. 

 Cetacea, 317. 



Chalk beds, formation of, 30. 

 Chameleon, American, 255 ; Old 



World, 256. 

 Chimpanzee, 333. 

 Chinch bug, 197. 



Chiroptera, 331. 



Chlorophyll in animals, 9. 



Chordata, 200, 201 ; classification of, 

 202. 



Chromosomes, 20. 



Chrysalis, 179. 



Cicada, 17-year, 177 ; 13-year, 177. 



Cilia, 31. 



Circulation in animals, 363. 



Clams, 112. 



Class, 27. 



Classification of animals, 24 ; of cats, 

 28. 



Clitellum, 75. 



Cloaca, 38. 



Coal, 7. 



Cobra, 251. 



Cochineal, 196. 



Cockroaches, 173. 



Cocoon, 179, 186. 



Codfish, 220, 227; rate of increase, 

 353. 



Coelenterata, 45 ; classification of, 63 ; 

 economic importance of, 62. 



Ccelome of earthworm, 76 ; of star- 

 fish, 93. 



Collar cells, 39. 



Colorado potato beetle, 187. 



Commensalism, 141. 



Congo snake, 239. 



Conjugation, 31. 



Contractile vacuole, 14. 



Copperhead, 252. 



Coral, 57 ; reefs, 58 ; red, 59 ; polyps, 

 54, 57, 58, 59 ; fossil, 344. 



Cormorant, 282. 



Cotton boll weevil, 188, 190. 



Cowbird, 293. 



Crabs, hermit, 137 ; rock, 138 ; 

 spider, 140 ; fiddler, 140. 



Crake, Carolina, 284. 



Cranes, 284 ; whooping, 284 ; sand- 

 hill, 284. 



Crayfish, 124 ; appendages of, 125' 

 gills of, 126; locomotion of, 127 

 alimentary canal, 128 ; food, 128 

 circulation, 129 ; nervous system 

 130 ; senses, 131 ; respiration, 131 

 reproduction, 132 ; regeneration of 

 lost parts, 132 ; molting, 133 ; eco- 

 nomic importance, 134. 



Crickets, 171. 



