Index 891 



Strands of cytoplasm, 153, 157, 162, 



164, 362,* 363 

 Stratum compactum, 422, 422* 



corneum, 421, 422,* 459, 460* 



granulosum, 459, 460* 



lucidum, 459, 460* 



mucosum, 459, 460,* 461 



spongiosum, 421, 422* 

 Striation, 381, 384 

 Strobila and strobilization, 290,* 377 

 Strobilus, 135, 135,* 136, 136,* 137,* 

 192-195 



Strongyloidea, 295, 788 



Struggle for existence, 747 



Style, 143, 144*-146,* 207-217, 223,* 



225, 225* 

 Subclavian, 741* 

 Suberin, 39, 59 

 Substrate, 91, 131 



Successions of organisms, 646, 652, 654 

 Succus entericus, 476 

 Suckers, 293, 308,* 309, 311, 315,* 



375,* 376-379, 538* 

 Sucrose (cane sugar), 87, 92, 472-477 

 Suctoria, 279 

 Sugar, 87, 92, 472-477 

 Sulcus (sulci), 503 

 Sulfur, 79* 

 Sundew, 636, 668* 



Sunflower (Helianthus), 145,* 213-217 

 Supplementary genes, 693 

 Suprarenal (adrenal), 508, 511 

 Surface tension, 755 

 Survey of animal kingdom, 272-343 



of plant kingdom, 108-149 

 Suspensor, 193, 194, 202, 204 

 Suture, 466 

 Swammerdam, 29, 802 

 Swarm spore, 123, 123,* 156, 167, 172, 



174 



Swimmeret, 320,* 321* 

 Syconoid (sycon) {see Sponges) 

 Symbiosis, 151, 155, 169, 535, 634, 658, 

 662 



Symmetry, asymmetry, 309, 310 



bilateral, 292, 293, 298-304, 309-314, 

 325-343, 368, 372 



biradial, 292 



radial, 279, 286, 292, 299 

 Sympathin, 502 

 Synapse, 54, 501, 502 

 Synapsis, 696,* 697, 709 

 Syncytium, 53 

 Synergid cell, 206, 859 

 Syngamus, 539, 540, 661, 788 

 Syngamy, 859 

 Synura, 530, 532* 

 Systems, 60, 647, 648 



of classification of plants, 865, 866 



Tactile, 303, 398, 405, 460, 460,* 495 



Tadpole, 447, 448* 



Taenia {see Tapeworm) 



Tails, 738* 



Tapeworm, 293, 294, 377-379, 377,* 



378,* 537, 538,* 660, 785, 



786 



Tar pool, 608* 



Tarantula, 547 {see also Spider) 



Tarsal (tarsus), 394, 394,* 400, 401,* 



425, 462,* 466 

 Tassel 146 * 210 



Taste,' 398, '406, 440, 472-477, 495, 505 

 Taxonomy, 24, 736, 737, 865, 866 {see 



also Classification) 

 Teeth, human, 461-464, 463,* 464,* 



473 

 palatine (maxillary), 427* 

 vomerine, 424, 425, 427* 

 Telegony, 859 



Teliospore, 129, 167, 181, 182* 

 Telophase (mitosis), 62, 63,* 65, 66,* 



67 



Telson, 320,* 321* 



Tendon, 49, 53, 426* 



Tentacle, 278,* 286-293, 286,* 288,* 

 289,* 291,* 304, 306,* 307,* 

 310,* 311, 311,* 312,* 327* 



Tentaculata, 293 



Tentaculocyst, 290* 



Teredo, 314,* 542 



Termite, 556* {see also Insects) 



Terraphyte, 653 



Terrestrial, 653 



Test, 303,* 304* 



Testes (testis), 286,* 292, 296,* 328,* 

 371,* 372, 374,* 378,* 380,* 

 382, 389,* 391, 398, 440, 

 440,* 507,* 509, 512, 513, 

 514* 



Testosterone {see Endocrine glands) 

 Tethelin {see Endocrine glands) 

 Tetraspore, 119, 154, 165 

 Texas fever of cattle, 534,* 786 

 Thales, 800 



Thallophyta, 109-112, 150-166,167-184 

 Thallus, 131,* 188, 189 

 Theelin {see Endocrine glands) 

 Theophrastus, 801 



Theories, acquired characteristics, 746, 

 747 



Allen's, 734 



atomic {see Atom) 



axial gradient, 372, 373 



biogenetic, 442, 742 



cell {see Cell) 



cosmozoa, 734 



