Z^> I UNIVEKSITY OF COUO««w 



i^O T.\ ^^' MUSEUM 



Ml X'\ BOULDER. COLORAOa 



AMEEICAN SPIDEES 



AND 



THEIR SPINNINGAVORK. 



-®- 



A NATURAL HISTORY 



OF THE 



ORBWEAVING SPlDERtS OF THE UNITED STATES 



WITH SPECIAL REGARD TO THEIR INDUSTRY AND HABITS. 



-®- 



15 Y 



HENEY C. McCOOK, D. D., 



Vice-President of the Academy of Natural Sciences of Philadelphia; 



Vice-President of the American Entomological Society ; 



Author of " The Aorici'ltural Ants of Texas," 



" The Honey and Occident Ants," 



ETC., etc. 



VOL. 1 



PUBLISHED BY THE AUTHOR, 

 Academy of Natural Sciences ok Piiiladklimiia. 



A. D. 1889. 



