542 



INDEX 



Statocyst, 404 

 Stauromedusae, 308 

 Steapsin, 69, 125, 169, 171 

 Stegocephalia, 486 

 Stegomyia, 281 

 Steu-mother, 62 

 Stenostomum, 824 

 Stenson's duct, 124 

 Stentor, 272 

 Sternebrae, 114 

 Sternum, 114, 397, 420 



of frog, 86 

 Stiles, Dr. Charles W., 44?, 

 Stipes, 418 

 Stolenifera, 311 

 Stomach, cardiac, 122 



pyloric, 122 

 Stomolophus, 308, 309 

 Stone age, 495 



canal, 366 

 Strobilus, 454 

 Strongylocentrotus, 361 

 Strongyloidea, 336 

 Strongyloides, 335 

 Struggle for existence, 507 

 Styloid process, 114 

 Subclavian artery of rat, 128 

 Subgenital plate, 421 

 Sublingual gland, 125 

 Sublittoral area, 474 

 Succession, 465 

 Succus entericus, 171 

 Suctoria, 274 



Suprapharyngeal ganglion, 352 

 Suprarenal bodies, 199 

 Surra, 281 



Survival of fittest, 508 

 , Suture, 110, 417 

 Swimmerets, 397 

 Symbiosis, 428 

 Symmetry, bilateral, 326 

 Sympathetic nerves, 93 

 Symphysis, pubic, 115 

 Synangium, 77 

 Synapse, 57, 182 

 Synapsis, 210 

 Syngamus, 336 

 Syphilis, 434 

 Systemic arch, 71 



veins, 74 

 Systems, 59 

 Systole, 126, 180 



T 



Tadpole, 101 

 Taenia, 324, 434 



pisiformis, 453 



saginata, 434, 455, 456 



solium, 434, 454 

 Tanner, Dr. Vasco M., 415 



Tapetum, 185 



Tapeworm, 23, 452 

 economic relations of, 334 

 of sheep, 455, 456 



Tarsus, 88 



Taste buds, 164, 220 



Taxis, 278 



Taxonomy, 19 



Teats, 109 



Teeth, deciduous, 112 

 permanent, 112 



Tegmina, 421 



Telencephalon, 134, 218 



Telophase, 51 



Telosporidia, 274 



Temporal, 110 



Tendons, 56, 115 



Tentacles, 314 



Teratology, 226 



Teredo, 392 



Tergum, 420 



Tessera, 308 



Test, 359 



Testes, 144 



of earthworm, 347 



Testicle, 144 



Testosterone, 204, 207 



Tetany, 198 



Tetrastema, 324 



Texas fever, 281 



Thecodont, 113 



Theelin, 205, 207 



Theory, mutation, 508 

 of natural selection, 507 

 of recapitulation, 224, 487 

 Therm orpha, 487 

 Thermotropism, 278, 325 

 Thiamin, 174 

 Thigmotropism, 278, 325 

 Thoracic basket, 159 



lymph duct, 131 

 Thorny-headed worms, 438 

 Threadworms, 23 

 Threshold, 278 

 Thrombin, 131 

 Thrombocytes, 70 

 Thymus gland, 203 



of frog, 70 

 Thyone, 361 

 Thyroid, 217 

 gland, 196 

 of frog, 70 

 Thyroxine, 197 

 Thysanosoma, 456 

 Tibia, 115, 420 

 Tiedemann's bodies, 365 

 Time scale, 490 

 Tissues, 55 

 epithelial, 55 

 muscular, 56 



