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 



CO2 — symbol for carbon dioxide, 66 

 Coal, 219, 221 

 Coccus, 227 

 Coccygomorphae, 650 

 Cochlea, 398 

 Cockroaches, 582 

 Cocoon, 586, 590 

 Coelenterates, 518 



chemical sense of, 367 



digestion in, 454, 465 



nerve cells of, 435 



sense organs of, 359 

 Coelomata, 532 

 Coleoptera, 589 

 Collar, of Dolichoglossus, 618 

 Coloration, protective, 861, 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 

 Conidium — spores formed in fungi 



by budding, 249 

 Coniferae, 296 

 Conjugatae, 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, S29 



Cordyceps, 229 



Cork, loi 



Cork cambium loi 



Corm, III 



Cornea, 379 



Corolla, 122, 132 



Corrodentia, 583, 740 



Corydalis, 585 



Corvmb, 119 



Cot^edons, 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 Hlies), an order of 



Pelmatozoa. 

 Crocodile, 644 

 Crop, 579 



Cross fertilization, 138, 142 

 Cross-striped muscle fibre, 414 

 Crows, 650 

 Crustacea, 558 

 Crj-ptogams, 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 worm, 340 

 Cutinized cell walls, 97, 98 

 Cuttle fish, 611 

 Cyanophyceae, 232 

 Cycadinac, 294 

 Cycloganoidea, 635 

 Cycloid (of a fish scale) — with smooth 



rounded edge, 635 

 numbers refer to figures. 



