486 



INDEX 



Clams, 171 



Class, defined, 114 



Classes of animals, list, 116 



Classification, 192; of animals, 107; 

 example, 110; table, 116 



Clavicle, in human body, 333 



Cleanliness, importance, 356 



Coagulation, 317 



Cocci, 379 



Coccyx, in human body, 331 



Cock, Polish, *273 



Cockerel, silver-laced wyandotte, 

 *273 



Coelenterata, 139 



Colaptes auratus, *231 



Collections, high school, 473; how 

 to make, 469, 473 



Colors of animals, 438; uses of, 442; 

 how produced, 441; warning, 446 



Columba livia, domesticated varie- 

 ties, *260 



Combustion, 291 



Commensalism, 421 



Communal life, 426 



Condiments, 300 



Constipation, 314 



Copper head, 211 



Corals, 136 



Corisa, *161 



Cormorants, domesticated, 272 



Corpus callosum, 359 



Coyote, 254 



Crab, 151, *152; hermit, with polyp 

 on shell, *423 



Crayfish, 149; anatomy, 28; ven- 

 tral aspect and appendages, *29; 

 internal structure, *33 



Crocodiles, 212 



Cross-pollination, 452; by insects, 

 452 



Crustacea, 149 



Cuticle, of human body, 352 



Cuttlefish, 178 

 Cydas, 171 



Damp-bug, *154 



Decapoda, 178 



Deer, 251; extinct, 283 



Deglutition, 308 



Dendrites, 363 



Dentine, 306 



Dermacentor americanus, *166 



Dermis, of human body, 352 



Development of animals, 81 



Devil fish, 179 



Diaphragm, in human body, 309, 

 346 



Diastase, 312 



Diastole, 325 



Dictynida;, 168 



Didelphys virginiana, 2AS 



Diemyctylus lorosus, 203 



Diet, standard, 299 



Diffusion, 298 



Digestive system, of man, 289 



Digestion, in human body, defined, 

 303; first step in, 307; of starch, 

 307; in stomach, 311; in small 

 intestine, 312; experiment in arti- 

 ficial, 312; effect of alcohol on, 

 315 



Dinosaur, extinct three-toed, *284 



Diphtheria, 380 



Disease, human, caused by one- 

 celled animals, 124 



Disinfection, 381 



Dislocation, 336 



Distribution of animals, 406, 409 



Dog, 254; ancient Assyrian, *259; 

 domesticated races, 263, 271; ner- 

 vous system, *67 



Dolichorhynchus osborni, fossil skel- 

 eton, *279 



