INDEX GLOSSARY. 



443 



Cleistogamic flowers which do not 

 open and which are self 

 fertilized, 145 



Climate and vegetation, 223 



Climbing plants, 212 



Cloaca, the chamber into which the 

 intestine, ureters, and gono- 

 ducts, all open, 556, 637 



Closteridium butyricum, 229 



Club moss Lycopodium. 



Clypeaster, 65, 148 



Cnidaria, 524 



Cnidoblasts, 524 



COz symbol for carbon dioxide, 66 



Coal, 219, 221 



Coccus, 227 



Coccygomorphae, 650 



Cochlea, 398 



Cockroaches, 582 



Cocoon, 586, 590 



Ccelenterates, 518, 



chemical "sense of, 367 

 digestion in, 454, 465 

 nerve cells of, 435 

 sense organs of, 359 



Ccelomata, 532 



Coleoptera, 589 



Collar, of Dolichoglossus, 618 



Coloration, protective, 86 1, 862 



Color of animals, 308, 860 



Color changes, 868 



Columbae, 650 



Columella, 270, 403 



Commensalism, 745 



Composition of plants, 63-65 



Compound eyes, 378, 580 



Conchiolin, 605 



Conchifera, 594 



Condor, 650 



Condylarthra, 666 



Cones of retina, 380 



Coney, 666 



Congo snake, 243 1 



Conidium spores formed in fungi 

 by budding, 249 



Coniferae, 296 



Conjugate, 243 



Conjugation, 182, 186, 692- 



Conjugation in protozoa, 498, 699 



Connective tissue, 96, 325 



Connective tissue, origin of, 721 



Conus arteriosus, a chamber of the 

 heart lying in front of the 

 ventricle and containing sev- 

 eral valves, 628 



Copelata, 620 



Numbers refer to paragraphs; Black Face 



Copepoda, 559 



Coral, 75, 135-138, 349, 529 



Cordyceps, 229 



Cork, 101 



Cork cambium 101 



Corm, in 



Cornea, 379 



Corolla, 122, 132 



Corrodentia, 583, 740 



Corydalis, 585 



Corymb, 119 



Cotyledons, 294 



Crabs, 561 



Crab, lung of, 563 



terrestrial, 563 

 Cranes, 650 

 Cranial nerves, 445 

 Crayfish, 561, 563 



chemical sense of, 369 



development of, 504, 505 



digestion in, 467 



green gland of, 491 



integument of, 341 



locomotion of, 412 



reproduction in, 503, 504 



respiration in, 477 



statocyst of, 390 

 Cricket, 396, 582 

 Crinoids (sea lilies), an order of 



Pelmatozoa. 

 Crocodile, 644 

 Crop, 579 



Cross fertilization, 138, 142 

 Cross-striped muscle fibre, 414 

 Crows, 650 

 Crustacea, 558 

 Cryptogams, 174-181, 220, 292 



reproduction in, 181 

 Ctenidia, comb-like gills, 593, 595 

 Ctenobranchia, 600, 601 

 Ctenoid (of a fish scale) with a spiny 



edge, 636 

 Ctenophora, 531 

 Cuckoo, 650 

 Cumacea, 561 



Cuscuta (dodder) a genus of para- 

 sitic flowering plants. 

 Cuticula, of hydroids, 339 



of w6rm, 340 



Cutinized cell walls, 97, 98 

 Cuttle fish, 611 

 Cyanophyceae, 232 

 Cycadinae, 294 

 Cycloganoidea, 635 

 Cycloid (of a fish scale) with smooth 



rounded edge, 635 

 numbers refer to figures. 



