INDEX. 



367 



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

 173. 



Perception, accuracy of, 248. 



Perty, 17. 



Phidippus morsitans, the bite of, 27G. 



Pliiloth-oimis, nest of, 823, 347. 



Pliillyra rijjaria, sec Uloborus. 



Pholcii.s phalangioides, 223, 353. 



Physical power of spiders, 229. 



Pliny, 241. 



Poison of spiders, 32; effects and uses of, 

 Chapter XVI. ; poison fangs of Argiope, 

 2r)8, 2(>9 ; gland of Epeira, 2()9, 270 ; gland 

 and falx of Neniesia, 270, 271 ; of Epeira 

 diadeniata, 270 ; of Ilentz's Tarantula, 270, 

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

 inoculation with, 272; coni])arative harm- 

 lessness, 273 ; venomous ellccts, 274 ; by 

 Latrodectus, 275 ; of Nephila, 275 ; of Sal- 

 tigrades, 276 ; poi)ular notions, 277 ; effects 

 on insects and spidci-s, 27S ; a reserve 

 weapon, 280 ; superstitious notions con- 

 cerning, 281, 282; Argiope coj)hinaria, 

 fangs and falces, 268 ; position of poi- 

 son gland of, 269; l^^peira doniicilioruni, 

 l)oison gland of, 269 ; gland poison, 269, 

 270 ; muscles surrounding poison gland, 

 269. 



Prey, capture of, 67, 8(5, 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 Orcliard spider, 152. 



Protection of jH'rson, protective use of fore 

 legs, 69. 



Protection, of snares l)y ribbons, 57. 



Psocidaj, 331. 



Pulmonary sacs, 27. 



Purscweb sjjider, 325; see Atypus abl)oti. 



Pyriform glands, 40, 41. 



Radii, bent in the notched zone, 134; order 

 of spinning, 75; iuiml)er of, 85; single or 

 <loiililc, 7<i; siiiniiiiig the first, 74; varia- 

 tion in number, 139, 140. 



Rain, dissolving sjiiniiingwork, 102; effect of, 

 on webs, 92. 



Ray, John, 61. 



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

 soma. 



Reasoning powers of spiders, 227. 



Rennie, 76, 86. 



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



Retitelarije, 16, 17, 20, 342 ; see Line weav- 

 ers. 



Rhizopods, shells of, 333, 334. 



Ribbon decorations, 125; temporary in Epe- 

 ira, 116; possil)le origin of, 117. 



Robertson, Ivhvard II., .".52; descriljes nests 

 of Tbcridium ripariuni, 317. 



Rolled leaf nests, 285. 



Romanes, 77, 78. 



Rudimentary sTiares, 229. 



Sailing, habit of Tetragnatha, 159. 

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



s])inning, 327. 

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

 Scaffold foundations, Nephila's peculiar form, 



147. 

 Schaffenl )erger, 23 1 . 

 Scudder, S. H., 19. 

 Sectoral orbs, 130. 

 Sedentary spiders, 1.5. 

 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 tlireads, 45, 63. 

 Silk, li(jnid, of sj.iders, 39; u.sed for sailing, 



KiO. 

 Simon, M. Eugene, 107, 272. 

 Site of snares dei)eudent on foundation line, 



66, 181. 

 Sloane, Sir Hans, 233. 



Snakt', 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 Api>endix. 

 Spines, tarsal, used in si)inning, 81. 

 Spinnerets, 34; anterior, 37; middle, 36; i)0S- 



terior, 35; used to clami) spiral string, 81, 



82. 

 SjHiining, Argio])e's method of spinning 



shield, 99, 100. 

 Spinning glands, of Ei)eira, 39, 43; of Aga- 



lena labyrinthea, 45 ; of Tegenaria donii's- 



tica, 45; see Appendix. 

 S])inning organs, anatomy of, Chapter II., 



34; muscles regulating, 51. 

 Spinning spools, development of, 50; see .\]>- 



])endix. 

 Spinningwork, analogies, 170; classification 



of, 284. 

 Spiral threads of Dictyna, 355. 



