Spinning-Habits.—Spinnerets.—Spinning-Glands.—Beginning of a Thread.—Holes and Nests.—Burrows of Lycosa.—Trap-door Nests.—Tubes and Nests of Drassidæ.—Webs of Agalena.—Webs of Linyphia and Theridion.—Spiders living in Webs made by Others.—Round Webs.—Epeira Vulgaris.—Zilla.—Nephila.— Habits in the Web.—Curled Webs.—Cribellum and Calamistrum. —Webs of Amaurobius.—Regular Webs of Dictyna.—Triangle Web.—Round Webs with Curled Thread 38 CHAPTER IV. Growth of Spiders.—Differences between Male and Female.— Differences between Old and Young.—Male and Female of Nephila and Argiope.—Heads of Male Erigone.—Palpal Organs.—Epigynum. —Use of Palpal Organs and Epigynum in Various Spiders.—Laying Eggs.—Cocoons of Drassus, Attus, and Epeira.—Cocoons of Argyrodes and Argiope.—Care of the Cocoon.—Parasites.—Growth in the Egg.—Hatching.—Habits of Young Spiders.—Moulting. —Habitats of Spiders.—Distribution of Spiders 86 LIST OF ILLUSTRATIONS. PAGE 1. Under Side of Epeira Vulgaris 13 2. Foot of Epeira Vulgaris 14 3. Foot of Attus Mystaceus 15 4. Upper Side of Epeira Vulgaris 18 5. Section of Epeira Vulgaris 20 6. Mygale Hentzii 24 7. Dysdera Interrita and Eyes 26 8. Drassus 26 9. Agalena Nævia 27 10. Lycosa and Eyes 28 11. Salticus and Eyes 29 12. Thomisus and Eyes 30 13. Theridion 31 14. Mandibles of Epeira Vulgaris. Front View 33 15. Claw of Mandible 33 16. Spinnerets of Epeira Vulgaris 39 17. Single Spinning Tube 40 18. Spinning-Glands 40 19. Spinneret of Prosthesima 41 20. Spinneret of Agalena with some of the hairs removed 41 21. End of Thread 42 22. Trap-door Nests. Copied from Moggridge 47 23. Nest of Dolomedes 52 24. Web of Agalena 55 25. Web of Linyphia Marmorata 57 26. Web of Linyphia Communis 59 27. Pholcus swinging 61 28. Round Web of Epeira Vulgaris 62