INDEX. 



367 



Peckham, George W. and Elizabeth G., 109, 



173. 



Perception, accuracy of, 248. 



Perty. 17. 



Phidippus morsitans, the bite of, 276. 



Philodromus, nest of, 323, 347. 



Phillyra riparia, see Uloboras. 



Pholcus phalangioides, 223, 353. 



Physical power of spiders, 229. 



Pliny. 241. 



Poison of spiders, 32; effects and uses of, 

 Chapter XVI. ; poison fangs of Argiope, 

 268, 269 ; gland of Epeira. 269. 270 : gland 

 and falx of Xemesia, 270. 271 : of Epeira 

 diademata, 270 ; of Hentz's Tarantula. 270. 

 271: effects of, 271; bite of Epeira, 272; 

 inoculation with, 272 ; comparative harui- 

 lessness, 273 ; venomous effects, 274 ; by 

 Latrodectus, 275 ; of Xephila, 275 ; of Sal- 

 tigrades, 276 ; i>opular notions. 277 : effects 

 on insects and spiders, 278; a reserve 

 weapon, 280 ; superstitious notions con- 

 cerning, 281, 282; Argiope cophinaria. 

 fangs and falces, 268; position of poi- 

 son gland of, 269 ; Epeira domiciliorum, 

 poison gland of, 269; gland poison, 26<, 

 270 ; muscles surrounding poison gland, 

 269. 



Prey, capture of, 67, 86, 234. 



Protective architecture, 284, see Nesting. 



Protective environment of Labyrinthea's nest, 

 132. 



Protective industry, 308; Argiope's shield, 

 99 ; Argiope's wings or fenders, 104 ; apron 

 . of Orchard spider. 1 52. 



Protection of person, protective use of fore 

 legs, 69. 



Protection, of snares by ribbons. 57. 



Psocida?, 331. 



Pulmonary sar<. 27. 



Purseweb spider, 325 ; see Atypus abboti. 



Pyrifonn glands, 40, 41. 



Radii, bent in the notched zone, 134 ; order 

 of spinning, 75 ; number of, 85 ; single or 

 double, 76 ; spinning the first, 74 : varia- 

 tion in number, 139, 140. 



Rain, dissolving spinningwork, 102; effect of, 

 on webs, 92. 



Ray, John, 61. 



Kay spider, Chapter XII., 195; see Theridio- 

 sorna. 



Reasoning powers of spiders, 227. 



Rennie, 76, 86. 



Reproduction, organs of, 27 ; of limbs, 78. 



Retitelarue, 16, 17, 20, 342; see Lineweav- 

 ers. 



Rhizopods, shells of, 333, 334. 



Ribbon decorations, 125; temporary in Epe- 

 ira, 116; possible origin of, 117. 



Robertson, Edward H., 352; describes nests 

 of Theridium riparium, 317. 



Rolled leaf nests, 285. 



Romanes. 77. 78 



Rudimentary snares, 229. 



Sailing, habit of Tetragnatha, 159. 



Saltigrades, 19, 347; nest of, 316; manner of 

 spinning, 327. 



Scaffolding, spiral, 79 ; removed after use, 86. 



Scaffold foundations, Xephila's peculiar form, 

 147. 



Schaffenberger, 231. 



S< -udder, S. H., 19. 



Sectoral orbs. 130. 



Sedentary spiders, 15. 



Segestria senoculata, 50. 



Sewing, 285 ; design of, 315 ; by Epeira thad- 

 deus, 303; manner of, 302. 



Shamrock spider, see Epeira triaranea. 



Shield, central shield of Argiope, 97 ; use of, 

 99. 



Shooting threads, 45, 63. 



Silk, liquid, of spiders, 39; used for sailing, 

 160. 



Simon, M. Eugene, 107. 272. 



Site of snares dej>endent on foundation line, 

 66, 181. 



Sloane, Sir Hans, 233. 



Snake, enmity between spider and, 241 ; en- 

 snared by spider, 237, 238. 



Snare, as a tool for trapping, 247 ; wear and 

 tear of, 264. 



Spigots, spinning, 36, 46, 48 ; see Appendix. 



Spines, tarsal, used in spinning, 81. 



Spinnerets, 34; anterior, 37; middle, 36; pos- 

 terior, 35; used to clamp spiral string, 81, 

 82. 



Spinning, Argiope's method of spinning 

 shield, 99, 100. 



Spinning glands, of Epeira, 39, 43 ; of Aga- 

 lena labyrinthea, 45 ; of Tegenaria domes- 

 tica. 45 : see Appendix. 



Spinning organs, anatomy of, Chapter II., 

 34 ; muscles regulating, 51 . 



Spinning spools, development of, 50 ; see Ap- 

 pendix. 



Spinningwork, analogies, 170 ; classification 

 of, 284. 



Spiral threads of Dictyna, 355. 



