494 



INDEX 



Spirilla, 379 



Spizella socialis arlzoncr, *220 



Sponges, 133; example of, *133; 

 skeleton, *134 



Spontaneous generation, 80 



Sprain, 337 



Spraying, apple trees, *184; mix- 

 tures for, 184 



Spreading of animals, 408 



Squid, 179; giant, *17S 



Squirrels, 247 



Starch, manufactures, 297; test for, 

 297 



Starfish, 140, *140; dissection, *141 



Steapsin, 312 



S tent or, *121 



Sterilization, 381 



Sternum, in human body, 332 



Stimulants, 301 



Stomach, in man, form and struc- 

 ture, 308; as a food reservoir, 311; 

 digestion in, 311 



Struggle to live, 399, 400 



Suffocation, 348 



Sulphur, as a cell element, 291; 

 properties, 292; in proteid, 296 



Sun animalcule, *119 



Sunfish, 194; external structure, 8; 

 Eupomotis sp., *9; habits, 12 



Swan, domesticated races, 269 



Synovial membrane, in human body, 

 336; fluid, 336 



Systems of the human body, 289; 

 functions of, 290 



Systole, 325 



Tactile corpuscle of the skin of man, 



*70 

 Tadpoles, structure and habits, 98; 



*99 

 Tapeworm, *147; *415 



Taste, function and organs, 70; in 

 man, 368; papilla of calf, *7l 



Teeth, 305; structure, 305; kinds, 

 305; care, 306 



Temperature, regulation in body, 

 355 



Tendon, 339 



Teredo, 175 



Termites, insect guests of, 424; 

 beetle guest of, *424 



Termiiogaster texana, *424 



Testudo, *205 



Texas cattle fever, caused by proto- 

 zoan parasite, 130; tick, *130 



Thalessa, *417 



Thamnophis par let alls, *209 



Theobaldia incidens, eggs, larvae, 

 and pupae, *189 



Therididae, 168 



Thomisidae, 167, *168 



Thorax, and viscera, in human body, 

 *309; showing skeleton and dia- 

 phragm, *330 



Thrasher, sickle-billed, *232 



Thrush, russet-backed, *217 



Ticks, 164; dog, *166; wood, *!<><>; 

 Texas fever, *130 



Toad, 201; horned, 207; anatomy, 

 19; dissection, *22; eggs and 

 hatching, 97; life history, 97; in 

 garden, *98; *101 



Tongue, 303; showing taste papilla, 

 *370 



Tools of ancient man, *394 



Tooth, vertical section, *306 



Torpedo, electric, 198 



Tortoise, Galapagos, land, 205 



Touch, sense, 70; in man, 368; 

 skin papilla, *369 



Trachea, 343 



Trachina spiralis, 147; *414 



Tremex, *417 



