INDEX 



519 



Coral, 77 



Corn, 283, 313, 408, 409 



Corn borer, 409 



Cornea, 215, 216 



Corpus luteum, 192, 193 



Cortex of brain, 203 



Cosmic time, 359 



Cosmozoa theory, 223, 224, 227 



Cotton boll weevil, 409, 410 



Cousin-marriage, 383 



Cowper's gland, 148, 194 



Coxa, 330, 331 



Crab, 90, 91, 96 



Cranial nerve, 205, 206, 211 



Cranium, See: Skull 



Crayfish, 90, 96, 104-109, 132, 145, 



161, 189, 210, 212, 235, 335, 346, 



356, 357 

 Creatinine, 181 

 Cretin, 197 

 Crinoidea, 85, 86 

 Crithidia, 341 



Crocodile, 120, 121, 365, 367 

 Cro-Magnon man, 436-4?#, 440, 441 

 Crop, 102 



Crossing-over, 282, 308, 309 

 Crura cerebri, 203, 205 

 Crustacea, 90, 91, 104-109; See: 



Crayfish 

 Crystal, 26, 367 

 Ctenophora, 78, 477 

 Culex, 392 



Cultural development, 431, 437-445 

 Cumulative genes, 299-301 

 Cursorial, 321 



Curve of probability, 378, 379 

 Cutaneous senses, 210, 211 

 Cuticle, 102, 103, 135 

 Cuttle-fish, 86 

 Cuvier, 458 

 Cyanea, 73 

 Cyanogen, 224, 225 

 Cycle of elements, 39-45, 403 

 Cyclosis, 28 



Cyclostome, 112, 113, 184, 479 

 Cyst, 50, 52, 223, 230, 319, 390 

 Cystic duct, 155 

 Cysticercus, 399, 400 

 Cyto-genetic map, 309 

 Cytology, 3, 301 

 Cytoplasm, 10, 18, 19, 240-242; See: 



Protoplasm 

 Cytoplasmic organization, 276-279 



Dante, 449 



Daphnia, 91 



Darwin, Charles, 82, 281, 290, 372, 

 376, 378, 384, 389, 416. 472-475 



Darwin, Erasmus, 229, 472, 473 



Darwinism, 374-377, 384, 472-476 



Datura, 310 



Death, 14, 20, 258 



Decay, 40, 41, 221; See: Fermenta- 

 tion and Putrefaction 



Dedifferentiation, 235 



Dendrite, 200 



Denitrifying bacteria, 41, 42 



Dentalium, 276 



Dermal branchia, 84 



Dermis, 134, 135 



Descent with change, 349; See: Evo- 

 lution 



Development, 57-61, 231, 263-280, 

 364-366; See: Embryology 



Devil-fish, 86 



Diabetes, 182, 197 



Diaphragm, 134, 148, 149, 152, 163, 

 164 



Dickens, 150 



Didinium, 54 



Diencephalon, 202, 203, 214 



Differentiation, 56, 57, 235, 274, 276- 

 279, 460 



Difflugia, 48 



Diffusion, 157, 181, 497 



Digestion, 36, 61, 69, 108, 150-160, 

 338, 460, 461 



Digestive tract, 168; -See: Alimentary 

 canal and Enteric cavity 



Digit, 322, 355, 361-364 



Digitigrade, 321, 322 



Dihybrid, 292-294, 303 



Dinoflagellata, 51 



Dinosaur, 120, 123, 359 



Dioscorides, 448-450 



Diphtheria, 390, 391 



Diploid, 245, 248, 249, 303 



Dipnoi, 116 



Diptera, 94 



Disease, 38; inheritance of, 286; mi- 

 croorganisms and, 389-402 



Distribution of animals, 368-373 



Division of labor, 232, 234; See: Phys- 

 iological division of labor 



Dog, 129, 321, 352, 367, 399, 442 



Dogfish, 114, 171 



Dog flea, 406 



