366 



INDEX. 



Male, palpal organs, 23 ; generative organs, 

 28; rudimentary web of Argiope cophi- 

 naria, 106. 



Mandibles described, 22. 



Manufacturing methods, uniformity of, 324. 



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



Maternity, influence on habit, 347. 



Mathematics, 73 ; imperfection 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. H., 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 webs, 229, Chapter 

 XIV. ; use of lines, 169, 170. 



Meckel, Heinrich, anatomy of spinning or- 

 gans, 40 ; see Chapter II. 



Medicinal property of beads, 95. 



Mending snares, 179, 265. 



Menge, 28, 111. 



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



Meshed hub of Epeira, 54. 



Meta, 171. 



Meta menardii, 128. 



Meta merianae, 129, 214. 



Meta segmentata, 56. 



Migration, by 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 specimens for observing poison 

 fangs, 270. 



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



Mouth organs, 22. 



Muscles inclosing silk glands and spinnerets, 

 50. 



Muscular vigor and rigidity, 193, 194. 



Mutilation, effects of, 78. 



Mygalidse, 280, 281. 



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

 Natural habitat and distribution, 207. 

 Navigating, by Tetragnatha, 159. 

 Nemesia cementaria, poison apparatus, 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, 

 140. 



Nephila wilderi, see Nephila plumipes. 



Nests of spiders, manner of preserving, 31 ; 

 making, 134, 173, 225 ; Chapter XVII. 



Nesting habits, Chapter XVII., 284 ; cluster 

 leaf nest, 284, 286 ; folded leaf, 285, 2SS ; 

 silken tubes, 288, 289 ; various adaptations 

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

 Trifolium in various plants, 293 ; fern 

 nests, 295 ; plant habitat modifying nest 

 and habit, 297 ; of Domicile spider, 298 ; 

 Epeira vittata and Epeira vertebra ta, 2!)S ; 

 of the Angulata group of Epeira, 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; Labyrinthea, 134, 306; 

 Gibberosa, 307; silken tents, 308; protect- 

 ive use% 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; uniform manufacturing 

 method in, 324; one typical form, 324; 

 method of Atypus, 325 ; method of Taran- 

 tula, 327 ; of Argyroneta, 328 ; origin of 

 tubeweaving, 329; spider nests compared 

 with nests of other animals, 332, 333. 



Nesting sites, 173. 



Niantic, 292. 



Night habits, 67, 112. 



Ninni, 215. 



Notched zone, 55, 56; bracing the radii, 77; 

 of Orchard spider, 153. 



Oeffinger, 35. 



Orb web, divisions of, ")4. 



Orchard spider, see Argyroepeira hortorum. 



Orton, Prof. J., 234. 



Ovaries, 27. 



Packard, Prof. Asa S., 331. 



Pairing, 132. 



I'alpi, anatomy, 23, 24. 



Parasitic nest, 310. 



Parona, Prof. Corrado, 214, 216. 



Pavesi, Prof., 213. 



