676 



INDEX 



Chromosomes, maternal and paternal, 216 



and sex determination, 290-292 

 Chyme, 68 

 Cilia, 190, 422; 20 

 Circulation, of blood, 87-88, 93-97; 89 



of lymph, 88-91; 02, 94 

 Circulatory system, 26, 81-102; 25, 89 



in insects, 362 



in tunicates, 424 

 Class, 3, 374, 596; 375 

 Classification, 371-377 



of animals, 627-667 ; 594 



of plants, 595-626; 594 



of reptiles, 439-440 

 Cleavage, 234-235; 233, 236 

 Climax community, 580-584; 579 

 Clotting of blood, 97-99, 131 

 Club mosses, 410, 597, 612; 594 

 Coal forests, 411-413 

 Cochlea, IU; 113 

 Cockroaches, 435, 653 

 Coelacanth fishes, 630, 659 

 Coelenterates, 181-182, 629, 635-636; 



594 

 Coelenteron, 184, 362, 635, 637; 181, 182 

 Coelom, 243, 362, 628, 639; 183, 185, 594 



formation of, 236; 238 

 Collenchyma, 155; 154 

 Colloid, colloidal,, 14 



Color blindness, inheritance of, 292; 293 

 Color vision, 111-112 

 Comb jellies, 363, 629, 636-637 

 Comb shapes in fowl, inheritance of, 305 

 Combe Capelle-Briinn subrace, 503 

 Commensalism, 570 

 Communities, biotic, 571-586 



climax, 580-582, 584; 579 



forest, 574, 580-585 



pioneer, 578-579; 574-577 



preclimax, 584; 578 



primary, 571-573; 570 



succession in, 578-586 

 Companion cells, 161; 154 

 Competition, 341, 342, 349, 352, 384 



intergroup, 349, 352 



inter- and intraspecific, 566 

 Competitors, 565-566 

 Cones, retinal, 110-112 

 Conifers, 415, 598, 617, 620; 594, 619 

 Conjugation and fission, 212-213 

 Continents, history of, 391-392 

 Contraction, muscular, 42-46 

 Convergence, adaptive, 378-379, 461; 360 

 Cooperative relations, 568-571 

 Coordination, 103-133, 472 



and irritability, 190-192 

 Copulation, 227 

 Cordaites, 413, 598, 620; 412, 434, 594 



Cork cambium, 146, 157-158 



Cornea, 110; 111 



Corolla, 264; 263, 267 



Corpus luteum, 129, 244, 248; 247 



Cortex, adrenal, 130 



cerebral, 123; 124 



of plants, 145-146, 155; 154 

 Cortisone, cortin, 130-131 

 Cotyledon, 140 



Cotylosaurs, 440-441, 631; 433, 442 

 Cretaceous period, 394, 415-416, 441, 



443, 447^53, 470 

 Crinoids, 421, 435, 629, 642; 426, 643 

 Cro-Magnon man, 503, 528; 485, 502, 531 



culture of, 532-533; 531 

 Crocodiles, 443, 447, 631 

 Cross fertilization, 223-224 

 Cross pollination, 272-273 

 Crossing over, 218-219, 298-299; 217, 300 

 Crossopterygians, 428, 430-432, 630, 659 

 Crustaceans, 371, 419, 630, 649; 550, 650 

 Cryptozoic eon, 395, 403 

 Ctenophora, 629, 636-637 

 Cultural revolutions, 531, 535-536; 530 

 Culture, 493, 494, 507, 528-531 



levels of, 528-536; 530 



and man's evolution, 532-533, 535-536 



and man's organic constitution, 588- 

 589 

 Cuticle in plants, 167, 196, 404, 550 

 Cutin, 155, 167 

 Cycads, 414-415, 598, 617-619; 393, 416, 



594 

 Cytolisin, 101 

 Cytology, 289 

 Cytoplasm, 17, 135; 16, 136 



D 



Darwin, Charles, 338-345, 347, 352-353 

 Darwinian theory, 340-345, 347, 352-353 

 Dating, fluorine, 500 n., 501 



geological, 392-395 



Pleistocene, 492-493; 502 



by pollen analysis, 493 



postglacial, 493 



radio-carbon, 492-493, 521-522 



by tree rings, 493 

 Decay, bacterial, 200, 405, 603 



in energy cycle, 544 

 Deficiencies, mineral, 63-64 



of vitamins, 57-62 

 Dendrite, 107, 108, 116n.; 117 

 Dentine, 53, 465 



Dentition, dental formula, 53, 457 

 Dermis, 49; 50 

 Determiners (see Genes) 

 Devonian period, 395, 425^32 

 Diabetes, 132 



