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 

 Cyclas, 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 



Dictynidse, 168 



Didelphys virginiana, 245 



Diemyctylus iorosus, 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, fossii skel- 

 eton, *279 



