366 



INDEX. 



Male, pal|i;tl organs, 23 ; generative organs, 

 28; rudiimntary web of Argiope cophi- 

 luiria, ]()(>. 



JIandiblcs dcst-ribed, 22. 



Manufacturing methods, uniformity of, .".24. 



Marx, (ieorge, M.D., 120, 168, 169. 



Maternity, influence on habit, 347. 



Matlicmatits, 73 ; imperfection of orbwebs, 

 7!i; irregularity of radii, 76; order of spin- 

 ning radii, 77 ; orientation of lines, 75 ; 

 polygonal and triangular forms in snare.'J, 

 61. 



McC'ooU, Commander lilioderick Sheldon, 222. 



McLcay, 17. 



Meade, R. H., 27, 3S ; anatomy of spiders, 44. 



Mechanical advantage, order of radii, 76; of 

 notched zone, 77. 



Mechanical skill, distributing force of -ninds, 

 etc., 74; strength of webs, 229, Chapter 

 XIV. ; u.se of lines, 169, 170. 



Meckel, Heinrich, anatomy of spinning or- 

 gans, 40 ; see Chapter II. 



Medicinal projjcrty of beads, 95. 



Mending snares, 179, 265. 



Menge, 28, 111. 



Mentalisni, 78, 82, 84, 85, 86, 93. 



Meshed hub of Kpeira, 54. 



Meta, 171. 



Meta menardii, 128. 



Meta meriame, 129, 214. 



Meta segraentata, 56. 



Migration, by means of ah- lines, 62. 



Milk, spider drinking, 263. 



Mimicry, 155, 182. 



IMisumena, cocoon nest of, 323. 



Misumena rosea, 17. 



IMitchell, Prof C)rmsl)y, 232. 



Moggriilge, 323. 



Mosely, 233. 



Mosquito captured on snares, 248, 266. 



Moulting, 24. 



Moults, good specimens for observing poison 

 fangs, 270. 



Mouse captured by a spider, 242, 243, 244. 



IMouth organs, 22. 



Muscles inclosing silk glands and spinnerets, 

 50. 



Muscular vigor and rigidity, 193, 194. 



Mutilation, eflects of, 78. 



Mygalid*, 280, 281. 



Natural sites of snares, 114, 119, 120, 157, 158. 

 Natural habitat and distributicju, 207. 

 Navigating, l)y Tetragnatha, 159. 

 Nemcsia cementaria, poison apparatus, 271. 



Nephila, 49, 95, 96, 2.33; the bite of, 276; 

 snares of, 310. 



Xephila plumipes, description of female, 147 ; 

 snare of, 147; golden strands, 147; form 

 (if well, 147; Wilder, 147, 14S ; distribution, 

 14i;. 



Nephila wilder!, sec Nephila ]pliiiuipes. 



Nests of spiders, manner uf presei'ving, 31 ; 

 making, 134, 173, 225; Chapter XVII. 



Nesting habits. Chapter XVII., 284 ; cluster 

 leaf nest, 284, 286; fiilded leaf, 285, 288; 

 silken tubes, 288,289; various adajitations 

 of, 290 ; favorite sites for, 292 ; nests of 

 Trifolium in various ]ilantvS, 293; fern 

 ni'sts, 295; plant habitat modifying nest 

 and habit, 297; of Domicile spider, 2!J8 ; 

 Ejieira vittata and Epeira vertebratji, 2i)8; 

 of till' Angulata group of ICpeira, 299 ; 

 how nests are built, 300; beginning a 

 nest, 301 ; mode of sewing, 302 ; nests of 

 Zilla, 302; of Thaddeus, 303, 304, 305; 

 Triaranea, 305; Laliyrinthea, 134, 306; 

 Gihberosa, 307; silken tents, 308; protect- 

 ive uses of, 309; parasitic nests, 310, 311. 



Nest making, origin of, 313 ; intelligent selec- 

 tion in, 313 ; Turret spider's nest, 314, 

 315 ; nest of Lycosids, SaltigratU's, Dras- 

 sids, 316; of pAiropean Theridioids, 317; 

 of Theri<lium riparium, 318, 319; of Trap- 

 door spiders and Atypus, 321, 322; of Ly- 

 cosa tigrina, 323; uniform manufacturing 

 method in, 324 ; one typical form, 324 ; 

 method of Atypus, 325 ; method of Taran- 

 tula, 327 ; of Argyroneta, 328 ; origin of 

 tubi'weaving, 329; spider nests comi)ared 

 with nests of other animals, 332, 333. 



Nesting sites, 173. 



Niantic, 292. 



Night habits, 67, 112. 



Ninni, 215. 



Notched zone, 55, 56; 'hraiing the radii, 77; 

 of Orchard spider, 153. 



Oeffingcr, 35. 



( )rbweb, divisiims of, .54. 



Orchard spider, see Argyroepeira hortorum. 



Orton, Prof J., 234. 



Ovaries, 27. 



Packard, Pn.f Asa S., 331. 



Pairing, l.'!2. 



Palpi, anatomy, 23, 24. 



Parasitic nest, 310. 



Parona, Prof. Corrado, 214, 216. 



Pavesi, Prof, 213. 



