AMEEICAN SPIDEES 



AND 



THEIR SPINNINGWORK. 



A NATURAL HISTORY 



OP THE 



ORBWEAVING SPIDERS OF THE UNITED STATES 



WITH SPECIAL REGARD TO THEIR INDUSTRY AND HABITS. 



^' 



HENHY C.^MoOOOK, D. D., 



Vick-Presipent of the Academy of Natural Sciences of Philadelphia; 



Vice-President of the American Entomoixjqical Sw'ietv ; 



Author of " The Agricitltural Ants op Texas," 



"The Honey and Occident Ants," 



etc., etc. 



1 



VOL. I. 



PUBLISHED BY THE AUTHOR, 

 Academy of Natural Sciences of Philadelphia. 



A. D. 1889. 



(^ 



