Index. 



3 6, 



Cecum of rabbit, 250. 

 Cell, 301. 



Wall, 301. 

 Celom, 89. 



Cenosarc of hydroid, 320. 

 Centiped, 54. 



Skein, 55. 

 Cephalization, 80. 

 Cephalopods, 138. 

 Cerebellum, 285. 

 Cerebrum, 285. 

 Cestoda, 351. 

 Chalk, 298. 

 Chameleon, 198. 

 Channel cat, 173. 

 Chickadee, 241. 

 Chimney swallows, 238. 

 Chinch bug, 23. 

 Chipmunk, 262. 

 Chitin, 84. 

 Chiton, 136. 

 Chordata, 148, 246, 284. 

 Chromatophores of squid, 141. 

 Cicada, 20, 22. 

 Cilia of earthworm, 96. 



Of paramecium, 293. 



Of rotifer, 353. 



Of vorticella, 295. 

 Ciliated chambers, 308, 310. 

 Circulation in clam, 116. 



In crayfish, 68. 



In earthworm, 94. 



In frog, 184. 



In grasshopper, 6. 



In perch, 157, 159. 



In pigeon, 216. 



In rabbit, 251. 



In snail, 130. 



In snake, 202. 



In squid, 142. 



In starfish, 336. 

 Cirripedia, 83. 

 Clam, foot of, 105. 



Fresh-water, 102. 



Giant, 125. 



Hard, 121. 



Long, 1 20. 



Muscles of, 109. 



Razor-shell, 124. 



Round, 121. 



Clam, siphons of, 105, 108. 



Soft, 120. 

 Clam shell, 102, 103. 



Growth of, 1 10. 



Structure of, 109, no. 

 Clavicle of pigeon, 213. 

 Claws of cat, 278. 



Of dog, 279. 

 Click beetles, 41. 

 Climbing birds, 237. 

 Clitellum of earthworm, 88. 

 Cloaca of pigeon, 216. 

 .Of snake, 201. 



Of sponge, 310. 

 Cloven-footed animals, 269. 

 Clypeus of grasshopper, 2. 

 Cochineal insect, 24, 52. 

 Cockatoo, 237. 

 Cockroaches, 13. 

 Cocoons of ants, 50. 



Of lepidoptera, 30. 



Of spider, 59. 

 Codfish, 165, 172. 

 Codling moth, 30. 

 Ccelenterata, 313. 

 Cold-blooded animals, 291. 

 Coleoptera, 36, 43. 

 Collar bones of pigeon, 213. 

 Colon, ascending, 283. 



Descending, 283. 



Transverse, 283. 

 Colonial protozoans, 305. 

 Colony of hydroids, 318. 

 Color dimorphism, 235. 



Of fishes, 164. 



Of frog, 185. 



Of jellyfishes, 325. 



Of rabbit, 252. 



Of squid, 141. 

 Colorado potato beetle, 39. 

 Colors of birds, 219. 

 Commercial sponge, 309, 310. 

 Conchology, 146. 

 Condor, 236. 



Condyle, occipital, in bird, 243. 

 Conjugation of protozoans, 297. 

 Constrictors, 200. 

 Contour feathers, 209. 

 Contractile vacuole, 286, 287, 295. 

 Contractility, 289. 



