AMEKICAN SPIDEES 



A S 1) 



THEIR SPINNINGWORK. 



A NATURAL HISTORY 



OK Till-: 



ORBWEAVING SPIDERS OF THE UNITED STATES 



WITH SPECIAL RE(iARI) TO TIIKIR INDUSTRY AND HABITS. 



BY 



HENRY C. McCOOK, D. D., 



Vice-President of the Academy of Natural Scikxces ok Philadelphia; 



Vice-President ok the American ENix)MoLonicAL Society ; 



Author ok "The Aurkultcral Ants of Texas," 



" The Honey and Ocvident Ants," 



ETC., ETC. 



VOL. II. 



PUBIJSHKD BY THE AITIIOK, 



Academy ok Natu rai- SriKxSOEs ov Piiiladelpiha. 



A. I). 1890. 



