872 Index 



Chromatophore, 274, 276,* 358,* 359, 



532,* 730, 758 

 Chromomere, 679 

 Chromonemata, 44, 679 

 Chromoplast, 43, 161 

 Chromosomes, 44, 63,* 64, 65, 66,* 67, 

 673-683, 675*-677,* 696,* 

 698, 710* 



aberration, 679, 680 



map, 696,* 698 



number in animals and plants, 674 

 Chrysalis, 413* 



Chrysophyta, 109, 116, 117,* 153, 249 

 Cicada, 319, 561* [see also Insects) 

 Cilia, 277, 278,* 279,* 304, 349-357, 



350,* 368, 369,* 370 

 Ciliary body, 497* 

 Ciliata, 277, 278,* 297, 299 

 Cinclide, 291* 

 Circulation, 477-489 {see also specific 



organisms) 

 Cirri, 307,* 328* 

 Clam, 311, 312,* 313* 



worm (sandworm) (Nereis), 307,* 

 308, 541 

 Classification of animals, 272-343 



of insects, 409-420 



of plants, 108-148, 865, 866 

 Claw, 394, 401,* 402 

 Cleavage, 444, 451,* 452 

 Clefts, 325-343, 328* 

 Cleistothecia, 177 

 CHnorchis, 661, 785* 

 Clitellum, 384, 389,* 391 

 Cloaca, 299,* 306,* 340,* 427,* 428, 



440* 

 Clostridium, 121,* 651 

 Clothes and biology, 776 



moth, 567* {see also Insects) ' 

 Club moss, 110, 134, 135,* 191-194, 

 256 



Cnidoblast, 287* 



Coat, seed, 208, 210 



Coccidia, 534 



Cochlea, 495, 498,* 505 



Cockroach {see Insects) 



Cocoon, 373, 391, 392, 407 



Coelenterata, 285,* 286-290, 536 



Coelom (body cavity), 299, 302, 302,* 

 306-309, 314, 325-343, 327,* 

 384, 387,* 388, 390, 435, 

 449* 

 extraembryonic, 451,* 453 



Coenurus, 538,* 788 

 Cohesion, 824 

 Colchicine, 677 

 Cold-blooded animal, 331-333 

 Coleoptera (beetles), 563-565, 563,* 

 564* {see also Insects) 



1 



Coleoptile, 211 



Coleorhiza, 211 



Collar, 283,* 327, 327* 



Collaterals, 54 



CoUembola {see Insects, orders of) 



Collenchyma {see Tissues, plant) 



Collies, heredity, 707* 



Colloid, 74, 75, 75,* 78 



Colon, 470,* 471,* 475, 477 



Colony, 152, 154, 155, 159, 169, 171, 



274, 298, 360, 363, 399 

 Coloration, 421, 423, 758, 760 {see also 



Pigments) 



Colorblindness, 702* 

 Colors (dves) from plants, 263 

 Columella, 124* 

 Comb, 400,* 401,* 402 

 Combinations in heredity, 722 

 Comb-jelly, 292, 292* 

 Commensalism 634, 658, 664 

 Commissure, 391 

 Communal, 646, 652, 658 

 Companion cell {see Cell) 

 Comparative anatomy, 736, 742 



embryology, 736, 740 



physiology, 736, 745 

 Complement, 520 

 Complementary gene, 693 

 Composite flower, 145,* 213 

 Compound, 84 

 Conceptacle, 162 



Conduction, 227, 494, 500-502, 754 

 {see also circulation in specific 

 organisms) 



of nerve impulses, 498-502, 498* 

 Condyle, 333, 340, 424 

 Cone, 135, 135,* 136, 138, 193-195, 

 200-205 



Conidiospore, 122, 126,* 127, 129, 167, 



172, 175, 177, 180 

 Conifer (Coniferales), 110, 138, 200- 



203, 257 

 Conjugation, 124,* 125, 157, 158,* 



159, 173, 277,* 355, 355,* 



356* 



Conjunctiva, 497* 



Connecting strands of protoplasm, 41, 



42,* 357 



Connective tissues {see Tissues) 

 Conservation and biology, 18, 792-799 



of energy, 751 



of fishes, 797 



of forests, 793, 793* 



of human resources, 797, 798 



of minerals, 794 



of soils, 794 



of water, 795 



of wild Hfe, 796 



i 



