INDEX 



495 



Stimulus, 166 



Sting of honeybee, 328, 329 

 Stockard, C. R., 267 

 Stomach, fish, 97 



fowl, 97 



frog, 32 



human, 99 



ruminant, 98 

 Strasburger, E., 19 

 Stratified epithelium, 42 

 Stratum corneum, 42, 46 

 Stratum germinativum, 42, 46 

 Stratum granulosum, 46 

 Stratum lucidum, 46 

 Strobilation, 396 

 Structural protein, 17, 18 

 Structure, 3 



Struggle for existence, 313 

 Stylonychia, 383, 384 

 Subclavian vein, 142 

 Sublingual gland, 94 

 Submaxillaris muscle, 75 

 Submaxillary gland, 94 

 Submentahs muscle, 75 

 Submucosa, 94 

 Submucosal plexus, 95 

 Subterranean animals, 362 

 Suckfish, 345 

 Sucrase, 107 

 Suctoria, 384 

 Superior vena cava, 131 

 Suprascapula, 66 

 Surface animals, 363 

 Survival of fittest, 314 

 Suspensorium, frog skull, 57 

 Sweat gland, 47 

 Sycon sponge, 386 

 Sycotypus, 345 

 Sygnathus, 152 

 Sylvilagus, 333, 338 

 Symbiosis, 346, 347 

 Sympathetic nervous system, 183 

 Synapse, 185 

 Synapsis, 230 

 Syphilis, 288 

 Systemic aorta, 132 

 Systole, 127 



Tactile organs, 187 

 Taenia, 348, 349, 403, 404 

 Tapeworm, 348, 403 

 Tarsometarsal, 73 

 Taste bud, 191 

 Taste receptors, 189 

 Taxonomy, 3, 22 

 Teeth, frog, 29, 89 



mammal, 89-93 

 Telencephalon, 175 

 Teleostei, 449 

 Teleostomi, 447 

 Telolecithal egg, 246 

 Telosporidia, 375 

 Temora, 421 

 Temperature, 351, 352 



regulation of, 140 

 Temporalis muscle, 78 

 Tendo Achillis, 82 

 Tendon spindle, 188 

 Tenebrio, 431 

 Tentaculata, 397 

 Terebratulina, 413 

 Termites, 430 

 Tern, feint of, 339 

 Terrapene, 452 

 Terrestrial animals, 360, 363 

 Testacea, 374 

 Testis, earthworm, 157 



frog, 39 

 Testudinata, 452 

 Thalarctos, 228 

 Thalassema, 419 

 Thamnophis, 452 

 Theelin, 217 

 Thoracic duct, 118, 141 

 Thrombin, 135 

 Thrombogen, 135 

 Thymus glands, 212 

 Thyone, 440 



Thyroid gland, 209, 210 

 Thyrotropic hormone, 208 

 Thyroxine, 210 

 Tibia, 70 

 Tibiale, 70 

 Tibialis anticus muscle, 82 



