366 
INDEX. 
Male, palpal organs, 28; 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, 
ete., 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 merianze, 129, 214. 
Meta segmentata, 56, 
Migration, by means of air lines, 62. 
Milk, spider drinking, 263. 
Mimiery, 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, 248, 244. 
Mouth organs, 22. ; 
Muscles inclosing silk glands and spinnerets, 
50. 
Muscular vigor and rigidity, 193, 194. 
Mutilation, effects of, 78. 
Mygalidee, 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, 
146. 
Nephila wilderi, see Nephila plumipes. 
Nests of spiders, manner of preserving, 31; 
making, 134, 173, 225; Chapter X VII. 
Nesting habits, Chapter XVII., 284; cluster 
leaf nest, 284, 286; folded leaf, 285, 288; 
silken tubes, 288, 289; various adaptations 
of, 290; favorite sites for, 292; nests of 
Trifolium in various plants, 298; fern 
nests, 295; plant habitat modifying nest 
and habit, 297; of Domicile spider, 298 ; 
Epeira vittata and Epeira vertebrata, 298 ; 
of the Angulata group of Tpeira, 299 ; 
how nests are built, 300; beginning a 
nest, 801; mode of sewing, 302; nests of 
Zilla, 302; of Thaddeus, 8038, 304, 305; 
Triaranea, 805; Labyrinthea, 134, 306; 
Gibberosa, 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, 822; of Ly- 
cosa tigrina, 323; uniform manufacturing 
method in, 824; one typical form, 324; 
method of Atypus, 325; method of Taran- 
tula, 327; of Argyroneta, 328; origin of 
tubeweaving, 829; 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. 
Orbweb, divisions of, 54. 
Orchard spider, see Argyroepeira hortorum. 
Orton, Prof. J., 234. 
Ovaries, 27. 
Packard, Prof. Asa §., 331. 
Pairing, 132. 
Palpi, anatomy, 23, 24. 
Parasitic nest, 310. 
Parona, Prof. Corrado, 214, 216. 
Payesi, Prof., 213. 
