books.google.co.in - One of the only books to treat the whole spider, from its behavior and physiology to its neurobiology and reproductive characteristics, Biology of Spiders is considered a classic in spider literature. First published in German in 1979, the book is now in its third edition, and has established itself...http://books.google.co.in/books/about/Biology_of_Spiders.html?id=fLKZtBJBjqMC&q=main+eyes&utm_source=gb-gplus-shareBiology of Spiders