The Structure and Habits of Spiders

• Abdomen, 12, 16.
• Adhesive threads, 67.
• Adult characters of spiders, 87.
• Agalena, web of, 55.
• Agalenidæ, 26.
• Age of spiders, 112.
• Air-sacs, 22.
• Air-tubes, 12.
• Anyphena, flying of, 84.
• Argiope, web of, 67.
• Argyrodes, 58.
• Attidæ, 28.
• Attus, flying of, 85.
• Bertkau, experiments on poison of spiders, 34.
• Blackwall, age of spiders, 112;
• experiments on poison, 35;
• on blowing out of threads, 80;
• on flying spiders, 82.
• Blind spiders, 113.
• Blowing of threads, 80.
• Breathing-organs, 16, 22.
• Calamistrum, 73.
• California trap-door spider, 49.
• Care of young, 104.
• Cave spiders, 113.
• Ciniflonidæ, 72.
• Classification of spiders, 11, 23.
• Claws, 14.
• Cobwebs, 54.
• Cocoons, 98.
• Colors of spiders, 17, 19.
• Concealment of spiders, 70.
• Copulation, 94.
• Crab spiders, 29.
• Cribellum, 72.
• Curled webs, 72.
• Darwin on flying spiders, 83.
• Dictyna, spinning of, 73;
• regular webs of, 74.
• Distribution of spiders, 113.
• Doleschall, experiments on poison of spiders, 34.
• Dolomedes, nest for young, 53.
• Dorsal groove, 17.
• Drassidiæ, 26.
• Eggs, laying, 98;
• growth of, 105.
• Embryo spiders, 105.
• Epeiridæ, 31.
• Epigynum, 92.
• Erigone, heads of male, 88.
• Eyes, 17.
• Feet, 14.
• Flying of spiders, 79.
• Food of trap-door spiders, 50.
• Growth of spiders, 86.
• Habitats of spiders, 113.
• Hatching, 107.
• Heads of male spiders, 88.
• Heart, 21.
• Hoisting captured insects, 60.
• Holes, 44.
• House spiders, 114.
• Intestine, 21.
• Jumping spiders, 28.
• Laying eggs, 98.
• Legs, 14.
• Linyphia communis, web of, 58.
• Linyphia marmorata, web of, 58.
• Lycosa, flying of, 81.
• Lycosidæ, 27.
• Mandibles, 33.
• Maxillæ, 15.
• Moggridge, on poison of spiders, 36;
• on trap-door spiders, 46.
• Moulting, 110.
• Mouth, 59.
• Mygalidæ, 23.
• Nephila, web of, 66.
• Nervous system, 22.
• Nests, 52.
• Noise by a spider, 16.
• Œsophagus, 19.
• Palpi, 14.
• Palpal organs, 89.
• Parasitic spider, 58.
• Parasites of spiders, 104.
• Pholcus, habit of, when frightened, 61.
• Poison of spiders, 34.
• Poison-glands, 23.
• Regular web of Dictyna, 74.
• Repair of webs, 67.
• Reproduction, 94.
• Reproductive organs, 22.
• Round webs, 61.
• Running spiders, 27.
• Saunders, S. S., on digging of trap-door spiders, 50.
• Sexes of spiders, 86.
• Shooting of threads, 79.
• Six-eyed spiders, 25.
• Shaking web when frightened, 70.
• Spines, 14.
• Spinnerets, 39, 41.
• Spinning-glands, 40.
• Spinning-tubes, 40.
• Spots on top of abdomen, 17.
• Stomach, 21.
• Sucking-stomach, 19.
• Tame spiders, 37.
• Tarantula, 36.
• Theridion, web of, 60.
• Theridiidæ, 30.
• Thomisidæ, 29.
• Thorax, 12.
• Thread, 38, 42.
• Tracheæ, 17.
• Trap-door nests, 44.
• Triangle spider, 75.
• Tubes, 52.
• Tying up insects, 43.
• Use of spider’s web, 70.
• Water spider, 53.
• Wilder, on moulting of spiders, 110;
• Triangle spider, 75;
• use of spider’s silk, 70.
• Winter habits of spiders, 113.
• Young spiders, 107;
• escape from cocoon, 103.
• Zilla, web of, 65.

Electrotyped by C. J. Peters & Son, Boston, Mass.