460 



INDEX 



405; dominant, 272; linked, 

 268, 291, 293; recessive, 272; 

 unit, 262, 280, 282, 286 



Cheliped, 131 



Chemical coordination, 181-183 



Chemistry, origin of, 395 



Chemosynthesis, 50 



Chemotaxis, 240 



Cheshire, F. R., 328 



Chipmunk, 349 



Chlorenchyma, 77, 83 



Chlorophyll, 22; chemical compo- 

 sition of, 35 



Chloroplastid, 35, 84 



Choloepus, 317 



Chordate, 146, 415 



Choroid, 201 



Chromatin, 28; knot, 26] net- 

 work, 26 



Chromomere, 234 



Chromosome, 225, 242, 296; ac- 

 cessory, 292 ; combinations, 

 290; diploid number, 235, 289; 

 distribution, 236; division, 226; 

 duplex groups, 231, 235, 289; 

 haploid number, 235, 289; 

 homologous, 234, 235, 287, 289; 

 individuality, 227; in Man, 237, 

 291, 292; maternal, 234, 235, 

 287; pairs, 236; paternal, 234, 

 235, 287; reduction, 228; segre- 

 gation, 290; sex, 292, 295, 377; 

 simplex groups, 231, 235, 289; 

 synapsis, 235; X, 292-295, 377 



Chromosome cycle, 233-237; in 

 animals, 229, 289; diagram of, 

 235; in plants, 229, 288 



Cilium, 19, 25, 40 



Circulation, in animals, 116, 122, 

 131, 161-174; in Flowering 

 Plants, 85-88 



Class, 350 



Classification, animals, 116, 117, 



414-416; Algae, 413; Arthro- 

 poda, 415; Eutherian Mam- 

 mals, 416; Ferns, 414; Flower- 

 ing Plants, 414; Fungi, 413; 

 history of, 390; Mammals, 416; 

 Mosses, 413, 414; plants, 413, 

 414; Protozoa, 414; Verte- 

 brates, 416 



Clavicle, 141, 144 



Claws, 138 



Cleavage, 55 



Cloaca, 137, 149, 156 



Clover, 80 



Clustered roots, 65 



Coccyx, 153, 355 



Cochlea, 196 



Coelenterata, 118, 414 (see Hydra 

 and Obelia) 



Coeliac artery, 164 



Coelom, 120, 137, 140, 153 



Coelomate, 121 



Coelomic fluid, 162, 177 



Collar bone, 144 



Colloidal, 8 



Colony, 213 



Coloration, animal, 319-324 



Color-blindness, inheritance of, 

 294, 295 



Colorless plants, 43-53 



Columba (see Pigeon) 



Combinations, 268, 269, 302, 377 



Comparative anatomy (see Anat- 

 omy) 



Conduction, 18, 183 



Condylarthra, 361 



Conjugation, 41, 214, 244, 250; 

 diagram of, 245 



Conjunctiva, 201 



Connective tissue, 142 



Conservation of energy, 396 



Contractile vacuole, 9, 40 



Contractility, 33 



Conus arteriosus, 165, 166 



