INDEX 



623 



Contractile vacuole, 64, 65, 70, 79, 86, 86, 468, 



469. 494 

 Contractility, 495 



Contrast, living and nonliving matter, 17-18 

 Conus arteriosus, 346, 347 

 Convergence, 473, 474, 572 

 Coot, foot, 413 

 Copepoda, 268 

 Copper, 20 

 Copperhead, 396, 397 

 Copulation, 164, 240, 241, 281, 304 

 Copulatory appendages, 255, 268 

 Coracoid, 327, 400 

 Coral, 145, 148, 153-155, 541 

 Coral reefs, 154, 165 

 Coral rock, 155 

 Coral snakes, 396, 397 

 Coralline bryozoa, 191 

 Corium, 324, 465 

 Corixa, 279 

 Cormorant, foot, 413 

 Corn bollworm, 290 

 Corn root aphis, 289 

 Cornea, 227, 252, 260, 261, 338, 339 

 Corpuscles, blood, 236 



(See also Blood corpuscles) 

 Cortex, cerebral, 377, 388 



Paramecium, 70 

 Cosmopolitan animals, 527 

 Costal plate, 400 

 Cotton mouth, 396 

 Cotton worm, 290 

 Coughing, 496 

 Cowbird, 419 

 Coxal glands, 304 

 Coyote, skull, 426 

 Crab, blue, 266 



fishing, 270 



soft-shelled, 265 

 Crabs, 265-266, 269, 523-525 

 Cranefly, 280 

 Cranial nerves, 333 

 Cranium, 326, 326, 398, 453 

 Crawdads, 255 

 Crawfish, 255 

 Crayfish, 52, 116, 255-264, 534 



sections, 267, 268 

 Creation of life, 26-28, 41 

 Cretaceous period, 539, 543 

 Crickets, 279, 288, 294 

 Crinoidea, 205, 209, 541 

 Crocodiles, 340, 387, 39»-400, 523 



heart, 386 

 CrocodiUa, 387, 399 

 Cro-Magnon race, 462, 453 

 Crop, 235, 237, 251, 282, 328, 406, 407 

 Cross-fertiUzation, 108, 143, 164, 223, 251, 317 

 Crossbill, beak, 412 

 Crossbreeding, 564 

 Crossing over, 569 

 Crossopterygii, 350, 361, 368 

 Crotalus confluentes, skull, 398 

 Crow, albino, 660 

 Crustacea, 265, 311 



Crustaceans, 265-272, 465, 490, 494, 508, 522, 



523, 540, 541 

 Cryptobranchus, 371 

 Cryptopsaras couesii, 363 

 Crystalline cone, 260, 261 

 Crystalline style, 225 

 Crystalloids, 12 

 Ctenoid scales, 363, 354 

 Ctenophora, 156-168, 573, 574 

 Ctenophores, 156, 464, 466, 469, 471, 472, 478, 



489, 490, 495 

 Cuckoos, 419, 535 

 Cucumaria planet, 209 

 Culex, 90, 292 



Cultivation, modifications, 546 

 Curassows, 534 

 Currents, 55, 507, 528 

 Cutaneous artery, 367 

 Cutaneous sense organs, 334-336 

 Cuticle, 69, 79, 86, 137, 138, 465 



(See also Skin) 

 Cuticula, 100, 166, 167, 188, 234, 236, 310, 



466 

 Cuttlefish, 226, 227, 466, 541 



bone, 233 



eye, 227 

 Cutworms, 294 

 Cuvier, 581, 682 

 Cuvierian organs, 209 

 Cyanogen theory, 27 

 Cycles, chemical, 486—488 



food, 508 



life, 44-45, 460-462 

 Cycloid scales, 353, 354 

 Cyclops, 268 

 Cyclostomata, 340-343 

 Cyclostomes, 341 

 Cynodonts, 429 

 Cypris, 268 

 Cypris, 525 

 Cypselurus, tail, 356 

 Cysticercus, 177, 178 

 Cystoids, 541 



Cytoplasm, 29, 30, 84, 102, 111, 112, 119-121 

 463 



Daddy longlegs, 308 



Damsel flies, 294 



Danaus archippus, 286 



Daphnia pulex, 268 



Dark ages, 579 



Darwin, Charles, 32, 242, 452, 545, 646, 549, 557 



Darwin, Erasmus, 545 



Darwinism, 545 



Dasypus novemcinctus, 436 



Day and night rhythms, 510 



Deafness, heredity, 564 



Dealated ant, 299 



Dealated termite, 288 



Death, 24, 458 



Decapods, 265 



Deciduous wings, 286 



Deep-sea fishes, 363 



