362 



INDEX 



Sun animalcule, *ii9. 



Sunfish, *55, 210; brain of, *i03; 



external structure of, 54. 

 Surface film, used by insects, 5. 

 Swordfish, 213. 

 Symbiosis, 157. 



Tactile corpuscle of man, *i05; 



sense, 104. 

 Tadpoles, 28, *29; life of, 28. 

 Tailor-bird, nest of, 44. 

 Tolype velleda, scales of, *283. 

 Tapeworm, *i48, 295, *2g6; par- 

 asitic habits, 295. 

 Taste papillae of calf, * 1 05; sense 



of, 104. 

 Tent caterpillars, forest, *I75. 

 Terrapin, red-bellied, 221; yellow- 

 bellied, 221. 

 Testudo, *22i. 

 Tetragnatha, *204. 

 Thalarctos mantinius, 269. 

 Thalessa, +298 ; parasitic habits 



of, 298. 

 Thamnophis parietalis, *225. 

 Therioplectes, eye of, *iii. 

 Thorax of insect, section through, 



showing muscles, *7o; thorax 



of mammals, 85. 

 Thrasher, sickle -billed, *236. 

 Thrush, russet -backed, *234. 

 Tiger, 269. 

 Toad, *28, *3i, 216; brain of, 



*i03 ; eggs and hatching of, 27 ; 



horned, 222; life-history of, 27; 



Surinam, eggs of, 44. 

 Torpedo, 214. 



Tortoise, giant Galapagos, *22i. 

 Touch, sense of, 104. 

 Tracheae, *83; defined, 15; of 



beetle, *82; of insects, 82; in 



head of cockroach, *83. 

 Tracheal system of beetle, *i5. 

 Transformation of dragon-fly, 25. 

 Trap-door spider, burrow of, *4i ; 



nesting habits of, 39; with 



nests, *40. 

 Tree-frog, 217; Pickering's, *2i8. 

 Tree-toad, 217. 

 Tremex, *298; parasitized by 



Thalessa, 299. 

 Trichina, 295; parasitic habits, 



295; spiralis, 147, *i47, *296. 

 Trichinosis, 147. 

 Triopha modesta, *i4i. 



Tripoli, formed by shells of ocean 

 Protozoa, 122. 



Triton, little green, 219. 



Trochilus colubris, nest and eggs 

 of, *237. 



Trout, 211, *2i2; head of, show- 

 ing gills, *82. 



Turdus ustulatus, *e34. 



Turret spider, nest of, 41, *42, 

 *i98. 



Turtles, 221. 



Uncinaria killing fur-seals, *300. 



Ungulata, 263. 



Ursus americanus, 269; horri- 



bilis, 269. 

 Uses of color, 285. 



Vermes, 149. 



Vertebrates, bones of forelimb, 

 *74; brains of, *i03; circula- 

 tion of blood in, 94; eye of, 

 *iii; heart of, 94; nervous 

 system of, 100; skeleton of, 



71- 

 Vespa, nest of, *3i6; nest of 



queen, *3i7. 

 Vespidas, 316. 

 Vinegar eel, 146, *I47. 

 Violet-tip butterfly, larva of, 



pupating, *i9; pupa or chrys- 



alid of, *20. 

 Vorticella, *68, *1I7. 

 Vulpes pennsyhanicus, 269. 



Walrus, 269. 



Wapiti, *264, 266. 



Warning colors, 288. 



Wasps, life of, 315; mimicked by 

 moths, *292. 



Water-moccasin, 228. 



Water-beetles, 167. 



Water-boatmen, *i69. 



Water-bugs, 160. 



Water-flea, 157, *I58. 



Water-snake, 225. 



Water-strider, *i67. 



Water-tiger, *i69. 



Wax of honey-bee, how made, 305. 



Weasel, 269. 



Web, funnel of spider, 199; of 

 young spiders, *207; of tri- 

 angle spider, *205; round, 200. 



Whale, 262, 263; bowliead, 263; 

 right, 263; sperm, 263. 



