366 



INDEX. 



Male, jialpal organs, 23 ; generative organs, 

 28 ; rudimentary welj of Argiope copiii- 

 naria, 10(). 



Mandibles described, 22. 



Manufacturing methods, uniformity of, 324. 



Marx, George, M.D., 120, 168, 169. 



Maternity, influence on habit, 347. 



Mathematics, 73; imiierfection of orbwebs, 

 79 ; irregularity of radii, 76 ; order of spin- 

 ning radii, 77 ; orientation of lines, 75 ; 

 polygonal and triangular forms in snares, 

 61.' 



McCook, Commander Rhoderick Sheldon, 222. 



McLeay, 17. 



Meade, R. 11., 27, 38 ; anatomy of spiders, 44. 



Mechanical advantage, order of radii, 76; of 

 notched zone, 77. 



Mechanical skill, distributing force of winds, 

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

 XIV. ; use of lines, 169, 170. 



Meckel, Heinrich, anatomy of spinning or- 

 gans, 40 ; see Cha|)ter II. 



Medicinal property of beads, 95. 



Mending snares, 179, 265. 



Menge, 28, 111. 



Mentalism, 78, S2, 84, 85, 86, 93. 



Meshed hub of Epeira, 54. 



Meta, 171. 



Meta menardii, 128. 



Meta merianje, 129, 214. 



Meta segmentata, 56. 



Migration, 1)y means of air lines, 62. 



Milk, spider drinking, 263. 



Mimicry, 155, 182. 



Misumena, cocoon nest of, 323. 



Misumena rosea, 17. 



Mitchell, Prof Ormsby, 232. 



Moggridge, 323. 



Mosely, 233. 



Mosquito captured on snares, 248, 266. 



Moulting, 24. 



Moults, good si)ecimens for obser\ing poison 

 fangs, 270. 



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



Mouth organs, 22. 



Muscles inclosing silk glands and spinnerets, 

 50. 



Muscular vigor and rigidity, 19;!, 194. 



Mutilation, elfects of, 78. 



MygaUdtc, 280, 281. 



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

 Natural habitat and distribution, 207. 

 Navigating, by Tetragnatlia, 159. 

 Nemesia cementaria, poison api)aratus, 271. 



Nephila, 49, 95, 96, 233; the bite of, 276; 

 snares of, 310. 



Nephila plumipes, description of female, 147 ; 

 snare of, 147 ; golden strands, 147 ; form 

 of web, 147 ; Wilder, 147, 148 ; distribution, 

 146. 



Ne])hila wilderi, see Nephila plumii)es. 



Nests of spiders, manner of iiresei-ving, 31 ; 

 making, 134, 173, 225 ; Chajiter XVII. 



Nesting habits. Chapter XVII., 284 ; cluster 

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

 silken tubes, 288, 289 ; various ada2)tations 

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

 Trifolium in various i)lants, 293 ; fern 

 nests, 295; plant habitat modifying nest 

 and habit, 297 ; of Domicile spider, 298 ; 

 Epeira vittata and Epeira vertebrata, 298 ; 

 of the Angulata grouj) of Ejjcira, 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; Labyrintliea, 134, 306; 

 Cibberosa, 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, Saltigrades, Dras- 

 sids, 316 ; of European Theridioids, 317 ; 

 of Theridium riparium, 318, 319 ; of Trap- 

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

 cosa tigrina, 323; uniforui manufacturing 

 method in, 324; one tyi)ical form, 324; 

 method of Atypus, 325 ; method of Taran- 

 tula, 327 ; of Argyroneta, 328 ; origin of 

 tubeweaving, 329 ; si^ider nests comi)ared 

 with nests of other animals, 332, 333. 



Nesting sites, 173. 



Niantic, 292. 



Night ha])its, 67, 112. 



Ninni, 215. 



Notched zone, 55, 5() ; bracing the radii, 77 ; 

 of Orchard spider, 153. 



Oeffinger, 35. 



Orbweb, divisions of, 54. 



Orciiard spider, see Argyroepeira hortorum. 



Orton, Trof J., 234. 



Ovaries, 27. 



Packard, I'l-of Asa S., 331. 



Pairing, i.")2. 



Pal])!, anatomy, 23, 24. 



I'arasitic nest, 310. 



Parona, Prof. Corrado, 214, 216. 



Pavesi, I'rof, 213. 



