Ii6 Books about Spiders. 



hatching. H. Ludwig, in "Zeitschrift fiir Wissenschaft- 

 liche Zoologie," 1876, gives an account of the segmenta- 

 tion in eggs of Philodromus. 



Habits. — Walckenaer's " Histoire Naturelle des Ap- 

 teres " goes over the whole subject. Blackwall, in 

 " Researches in Zoology," 1834, describes the web- 

 making of Epeira, and the flying habits of spiders. 

 Blackwall also writes on habits in " The Spiders of 

 Great Britain and Ireland," published by the Ray 

 Society, 1864, and in various papers in " Transactions 

 of the Linnasan Society," 1833 t0 1841. Menge's 

 Lebensweise der Arachniden in " Schriften der Natur- 

 forchenden Gesellschaft in Danzig," 1843, goes over 

 the whole subject, and is particularly useful on the sex- 

 ual habits. The same author continues the subject in 

 " Preussische Spinnen," published by the same society, 

 beginning in 1866, and not yet finished. The habits of 

 the water-spider are described by Mr. Bell in "Journal 

 of the Linnasan Society," 1857. The trap-door spiders 

 and their habits are described by J. T. Moggridge in 

 " Harvesting Ants and Trap-door Spiders," published by 

 L. Reeve & Co., London, 1873, and Supplement, 1874. 

 Prof. B. G. Wilder has published several papers on the 

 habits of American spiders, the most useful of which 

 are the following: on Nephila plumipes from South Car- 

 olina, " Proceedings of the Boston Society of Natural 

 History," 1865; Practical Use of Spider's Silk in "The 

 Galaxy," July, 1869; Habits of Epeira riparia, Moulting 

 of Nephila plumipes, and Nests of Epeira, Nephila, and 

 Hyptiotes, in " Proceedings of American Association for 

 Advancement of Science," 1873; th e Triangle Spider in 

 "Popular Science Monthly," 1875. 



