Calorie, portion, |286|; requirement, 282. Calyx, 35. Cambium layer, 98. Canning, 145. Cannon, Prof., 304. Capillaries, 318, 323; circulation in, |322|; of fish, 236. Carbohydrates, 60, 273. Carbolic acid, 149. Carbon and oxygen cycle, |161|. Carbon dioxide, test for, |64|. Care of milk supply, 380, 383. Carnivorous, 230. Caudal fin of fish, 233. Cause of dyspepsia, 310. Cells, |50|; as units, 171; division, |51|; mucous, 299; of pond scum, |173|; reproduction of, 50; respiration, 332; tissue, |179|; work of, 270. Cephalothorax, 185. Cerebellum, 352. Cerebro-spinal nervous system, 350. Cerebrum, 351. Cestodes, 227. Changes, of blood in lungs, 330; of air in lungs, 331. Characters, determiners of, 258. Chelonia, 188. Chemical, compounds, 20; elements, 20; of human body, |21|. Chestnut canker, |131|. China, deforestation in, |108|. Chittenden table, |311|. Chloral, 293. Chlorophyll bodies, 50, 90. Chloroplasts, 90. Chromosomes, 50; and heredity, 251. Chrysalis, 33. Cilia, 171. Circulation, effect of alcohol, 327; effect of exercise, 326; effect of tobacco, 328; in fish, frog, man, |321|, |322|; in stem, 99, |100|, |101|; of blood of man, 318; of fish, 236; of frog, 243; portal, 322; pulmonary, 320; systemic, 320. City's need for trees, 115. Civic hygiene, 388. Clams, 200. Classification, of birds, 191; of plants, 176. Cloaca of frog, 243. Clothing, 203. Clotting of blood, 314. Coal, 64. Cobra, 230. Cocaine, 293. Coccus bacteria, 142. Cochineal and lac, 208. Cochlea, 359. Codling moth, 215. Coelenterates, 183. Cold-blooded animals, 318; effect of, |23|. Cold storage, 147. Colds and fevers, 343. Coleoptera, 32. Collecting ashes, |387|. Colonies of bacteria, 141; of trilliums, |175|. Colorless corpuscles, 313; structure, 315; function, |316|. Common foods contain nutrients, 275. Comparison, of food tube of frog and man, |297|; of mold, yeast and bacteria, |143|; of starch making and milling, 92. Complemental air, 334. Complex one-celled animals, 171. Composition, of milk, |273|, |280|; of plasma, 313; of soil, 77. Compound eyes of bumblebee, 37, |38|. Conservation, of food fish, 239; of fur-bearing animals, 204; of our natural resources, 17. Constipation, 310. Constrictor killing a mouse, |213|. Contagious diseases, 152. Convolutions, 352. Corn, 120, |121|; germinated grain cut lengthwise, |69|; long section of ear, |67|; structure of grain, |66|. Cornfield, |44|. Corolla, 35. Corpuscles, colorless and red, 313. Cost of food and diet, 281, |283|; of parasitism, 263. Cotton, 125; boll weevil, 126, |127|, |214|. Cotyledons, 59; food in, 60. Crab, |199|. Crayfish, |184|. Crocodile, 230. Crocodilia, 189. Crustacea, 185.
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