466 



INDEX 



Coelom, amphibian, /J7 



Ccelom, fish, i S7 



CcElom, reptile, 137 



Ccelomate animals, 136 



Ccelomic fluid, 173 



Cohesion, 23 



Cold-blooded animals, 191 



Coleoptera, 358, 359 



Colloids, 19-22, 301, 302, 419 



Colon, 759, 160, 410 



Colony, 88-90 



Color blindness, 332 



Comb jellies, 103, 104 



Commensalism, 73 



Comparative Anatomy, 141, 408 



Comparative Embryology, 424 



Complementary genes, 323 



Complete metamorphosis, 358 



Compound eye, 22^ 



Compounds, 9 



Compounds, organic, 9 



Conditioned reflexes, 371 



Conjugant, 71 



Conjugation, 70 



Continuous series in Evolution, 409 



Contractile vacuole, 56, 61, 6^, 66 



Contractility, 4, 64 



Convoluted tubule, i8g 



Coral Islands, 103 



Corals, 103 



Corium, 145, 191. See also Dermis. 



Corpus luteum, 200 



Correlating systems, 202 



Correlation, 5 



Corti, organ of, 231, 232 



Cow, 123 



Crabs, 112 



Cranial nerves, 222-223 



Crayfish, 112, 113 



Cream, 20 



Cretin, 204 



Cricket, 357 



Crinoidea, 109, 401 



Crocodiles, 119 



Crossed eyes, 229 



Crustacea, 112, 113, 125, 166, iS^, 196 



Ctenophora, 104, 125, 136 



Cycles, 302 



Cyclosis, 58, 67 



Cyclostomata, 116, 117 



Cysticercus, 364, 365 



Cytology, 31 



Cytoplasm, 29, 30, 36, 37, 268, 311 



Cytostome, 6^, 67 



Daltonism, 332, 338 



Darwin, Charles, 320, 389-393 



Darwin, Erasmus, 389, 423 



Death, 298-303 



Deductive logic, 427 



Defecation, 61 



Defects in vision, 227 



Dendrite, 210 



Denitrifying bacteria, 44 



Dentalium, ///, 112 



Dentine, 144, 155, 156 



Dermal bones, 147, 75/ 



Dermis, 144, 145, 146 



Development, 246-288 



Development of Vertebrate Brain, 217, 



220 

 De Vries, 320, 392, 424 

 Dextrose, 12 

 Diabetes mellitus, 205 

 Diaphragm, 136, 137, 171, 172 

 Diastases, 157 

 Diencephalon, 277, 218 

 Differentiation, 47, 68, 265, 293, 294 

 Diffusion, 33 



Digestion, 57, 67, 132, I54-I59 

 Digestive canal, 157, 760-165 

 Digestive enzymes, 157 

 Dihybrids, 326 

 Dinosauria, 403 

 Diphtheria, 83, 84, 86 

 Diploblastic animals, 130-131 

 Diplococci, 82 

 Diplodinium, 67, 68, 209 

 Diploid, 309 

 Dipnoids, 169, 770 

 Diptera, 359-361 

 Disease, 81-85, 97, 279 

 Divergent series in Evolution, 409 

 Dogfish shark, 777 

 Dogs, 122, 192 

 Dominance, 330 



