INDEX 



533 



Swan, 424 



Swarming of bees, 330 



Sweat gland, 181, 357 



Sweetbread, 154 



Swiss lake dwellings, 443 



Sycon, 69, 70 



Sylvius, 460 



Symbiosis, 337, 338 



Symmetry, 71, 99, 104, 132 



Sympathetic coloration, 327 



Synapse, 200, 207 



Synapsis, 244, 245, 249, 302-304, 308 



Synkaryon, 254-262 



Syphilis, 286, 390, 394, 395 



Tachina fly, 408 



Tactile organ, 143, 210 



Tadpole, 111, 117, 270, 271 



Taenia, See: Tapeworm 



Tail, 112, 133 



Tapeworm, 78, 396, 398, 399, 400, 477 



Tapir, 130, 368 



Tarsius, 426, 427 



Tarsus, 142, 144; of bee, 331-333 



Taste, 210, 211 



Taxonomy, 4, 455-459; See: Classifi- 

 cation 



Teat, 128 



Telencephalon, 202, 203 



Teleost, 115, 116 



Telophase, 240-242 



Telson, 105 



Temperature, 318, 319; body, 181, 

 223; on inheritance, 303; sense, 178 



Tendon, 139 



Tennyson, 281 



Tentacle, 71-74, 76, 82, 87 



Termite, 94 



Testis, 99, 147, 148, 188-195, 238, 239 



Testudinata, 120, 121 



Tetanus, 318, 391 



Tetrad. 244, 245 



Textiles, 442 



Thalassicolla, 49 



Theophrastus, 2, 447, 448 



Thomson, 7, 161, 316, 384, 386, 426 



Thoracic duct, 157, 158, 177 



Thorax, 93, 106, 134, 163, 330, 331 



Thrips, 94 



Throat, 151; See: Pharynx 



Thrush, 372 



Thumb, 143, 431 



Thymus gland, 148, 152, 160 



Thyroid gland, 152, 160, 197 



Thyroxine, 197, 198 



Tibia, 142, 144, 331-333 



Tick, 95 



Times, New York, 446 



Tissue, 3, 61-65, 100, 104 



Tissue fluid, 176-178 



Toad, 118, 119, 325, 365 



Toe, 142, 361-364, 431 



Tongue, 151,211, 358 



Tonsil, 152 



Tool, 143, 330, 336, 433, 436, 438-444 



Tooth, 129, 134, 135, 142, 144, 358, 



363, 371, 430 

 Torpedo, 114 



Tortoise, 120, 121; shell, 121 

 Totipotent, 278 

 Touch sense, 143, 210 

 Toxin, 343 



Trachea, 90, 147-149, 161-164 

 Trachelomonas, 51 

 Tradescantia, 28 

 Training, 313; See: Education 

 Transfusion, blood, 367 

 Translocation, 310 

 Transverse process, 139, 140 

 Tree, 412, 418 

 Tree frog, 119 

 Trematode, 78, 396-398 

 Trench fever, 406 

 Treponema, 394, 395 

 Treviranus, 474 

 Trial and error, 345 

 Triangle of life, 314 

 Triassic period, 359, 360, 363 

 Triatoma, 94 

 Trichinella, 80, 400, 401 

 Trichocyst, 55 

 Trichomonas, 51, 396 

 Trichurus, 396 

 Tricuspid valve, 174 

 Trigeminal ganglion, 205 

 Trihybrid, 294-296 

 Trilobite, 359 

 Triploblastic, 78 

 Triturus, 118 

 Trochanter, 331, 332 

 Trochelminthes, 83 

 Troland's theory, 226 

 Trophozoite, 52 

 Tropism, 253, 343 

 Trypanosome, 51, 341, 342, 396 

 Trypsin, 155 



