576 



INDEX 



Calorimeter, 495, 496. 



Cambium, 71, 174. 



Capillaries, 32, 485. 



Carbohydrates, 100-106; 460-462. 



Carbon, 12 ; cycle of, 126. 



Carbon dioxide, in plants, 113; in 

 animals, 54 ; in human, 507. See 

 also excretion. 



Castor-oil seed, 148. 



Caulicle, 83. 



Cecropia, 383. 



Cell-body, 41. 



Cell-division, 59, 198. 



Cells, 39-44, 69, 71, 108-110, 122; 

 use of foods, 492; relation to 

 nutritive processes, 509. 



Cell-wall, 41. 



Centipede, 379. 



Cephalopods, 414. 



Cephalothorax, 359. 



Cerebellum, 513. 



Change, physical, 5; chemical, 6; 

 of matter, 5 ff. 



Characteristics, 139. 



Chemistry, 6. 



Chlorophyll, 75 ; and plant food, 99- 

 102 ; in Hydra, 325. 



Chloroplast, 75. 



Chordata, 417. 



Chromosomes, 59. 



Cicada, 382, 385. 



Cilia, 301 ; Fig. 16. 



Circulation, animal, 55 ; plant, 130 ; 

 simplest animals, 305 ; crayfish, 

 366; earthworm, 351; Hydra, 

 327; human, 486-492. See also 

 under blood, and lymph. 



Clam, 405. 



Class, definition, 136. 



Classification, principles and tables, 

 133-144; frog, 64; bean, 121; 

 ferns, 240; mosses, 245; spore- 

 plants, 233; protozoans, 319; 

 coelenterates, 339; "worms," 354; 

 insects, 387-390 ; echinoderms, 357 ; 

 mollusks, 416; vertebrates, 417; 

 fishes, 422; amphibians, 426; 

 reptiles, 428; birds, 433; mam- 

 mals, 436 ; man, 455. 



Cloaca, 33. 



Coagulation of blood, 485. 



Cocoon, of worm, 352; insect, 383, 



384. 



Cod fish, 422. 

 Coelenterata, 324-339. 

 Coelome, 330. 

 Coffee, 552. 

 Colds, 528. 

 Coleoptera, 389. 

 Colon, human, 470. 

 Colony, protozoan, 316; hydroid, 



331 ; Volvox, 318. 

 Coloration, protective, of frog, 27 ; 



of insects, 399-403. 

 Commensalism, 371. 

 Composition, chemical, of living 



matter, 8, 10-13. 

 Compounds, chemical, 7. 

 Conifers, 214. 

 Conjugation, mold, 254 ; Parame- 



cium, 303 ; Spirogyra, 249. 

 Conservation, of energy, 492-494. 

 Control, of blood flow, 491. 

 Cooking, effect on foods, 482. 

 Coordination, 56, 509. See also 



nervous activity. 

 Copepod, 374. 

 Coral-animals, 336-339. 

 Cord, spinal, 511. 

 Corn, grain, 149 ; stalk, 168. 

 Corpuscles, blood, 483, 484. 

 Cotyledons, 83; 146-150; number 



of, 152 ; work of, 153. 

 Cover crops, 162. 

 Crab, 370. 

 Crayfish, 358-370. 

 Crustaceans, 358-376. 

 Cryptogams, 144, 233. 

 Ctenophore, 335. 

 Cultures, bacteria, 280 ; molds, 255- 



258 ; yeast, 270. 

 Cycle, of carbon, 126 ; of nitrogen, 



128; of organic matter, 126. 

 Cyst, 310. 



Cytoplasm, see protoplasm of cell- 

 body. 



Daphnia, 374. 



Death, animal, 17 ; plant, 20. 



