418 



INDEX 



Cujlcnteron, 115; of Hydra, 04 



Coelom, 115, 116, 210, 222, 223, 224, 225, 

 228 



Coenosarc, 97, 98 



Cold, 163 



Coleoptera, classified, 270 



Collared epithelivun, 109, 110 



Collecting tubules, 131 



Colloid, 36, 47 



Colloidal condition, 46 



Colloidal mixture, 36 



Colloidal state, 41, 187 



Colloidal system, 46 



Colonial aperture, 103, 109 



Colonies, in Hydrozoa and corals, 96; 

 types of, 85 



Colony, 84-89, 96 



Colony formation, 103, 275, 277, 278; 

 in metazoa, 96, 100; origin of, 102 



Coloration as adaptation, 276 



Columnar epithelium, 109, 110 



Colymbiformes, classified, 271 



Comanchian, in time scale, 315 



Combined types of reproduction, 186 



Combs in fowls, 362 



Commissures, 139 



Common bile duct, 118, 120 



Comparative anatomy, 17, 18, 21, 337; as 

 evidence of evolution, 348 



Comparative embryology, 337; as evi- 

 dence of evolution, 349, 350 



Comparative physiology, as evidence of 

 evolution, 350 



Compound alveolar gland, 111 



Compound character, 362 



Compound tubidar gland. 111 



Conchologist, defined, 267 



Condensers, 15 



Conemaugh formation, 319 



Congregation, 278 



Conjugation, 177, 190 



Connective tissue, 27, 41; nerve endings 

 of, 163 



Consciousness, 162, 163 



Continental changes, 316, 317 



Contractile tissues, 108, 112 



Contractile vacuole, 59, 171 



Copepoda, classified, 270 



Copulation, methods of in various ani- 

 mals, 190-193 



Copulation passage, 132 



Coraciiformcs, classified, 271 



Coracoid, 137, 138 



Coral, chain, 311 



Coral polyps, 106 



Corals, 316; budding in, 168; classified, 



272; colonics of, 96-98, 278; parts 



fossilized, 311 

 Coral snake, mimicry, 280 

 Cornea, 230 

 Corpora adiposa, 147 

 Corrodcntia, classified, 270 

 Cortex of cerebrum, 162 

 Course of circulation, 123-125 

 Course of evolution, 357-362; factors 



directing, 358 

 Cowbird, 17 

 Crab, host of Sacculina, 350; sperm of, 



216 

 Crabs, classified, 273 

 Cranial nerves, 141, 230 

 Crayfishes, 173; classified, 273; copula- 



tory haViits in, 192; egg carrying in, 



199; fertihzation in, 192 

 Crest, 99 

 Cretaceous, 330, 331, 332, 335; in time 



scale, 315 

 Cretaceous time, geography of, 353 

 Crinoidea, classified, 269, 272 

 Cristatella mucedo, 171;statoblastsof, 170 

 Croatia, ancient men of, 336 

 Crocodiles, 332 

 Crocodilians, classified, 274 

 Crocodilini, classified, 271 

 Cro-Magnon man, 336, 337 

 Crop, 117; of earthworm, 119 

 Crossopterygii, classified, 270 

 Crustacea, 181, 350; classified, 270, 273; 



parts fossilized, 311 

 Cryptobranchus, congregation of sexes, 



192; fertilization in, 192 

 Cryptocephala, classified, 269 

 Crypturiformcs, classified, 271 

 Crystalline lens, 227, 230 

 Ctcnophora, classified, 269, 272 

 Ctenophore, 182 

 Cubical epithelium, 109, liO 

 Cubomcdusa?, classified, 269 

 Cuculiformes, classified, 271 

 Cumacea, classified, 270 

 Cup coral, 316 

 (Juticle, 32 



Cuttlefishes, 173; classified, 273 

 Cuvier, Georges, 17, 18, 21, 22, 262 

 Cyclosis, 61 

 Cyclostomata, classified, 270, 273 



