AMEEICAN SPIDEES 



THEIR SPINNINGWORK. 



-®- 



A NATURAL HISTORY 



OF THE 



ORBWEAVING SPIDERS OF THE UNITED STATES 



AVITII SPECIAL REGARD TO THEIR INDUSTRY AND HABITS. 



HENRY O. McOOOK, D. D., 



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



Vice-President of the American Entomological Society ; 



Author of "The Agbicultural Ants of Texas," 



" The Honey and Occident Ants," 



etc., etc. 



VOL. II. 



PUBLISHED BY THE AUTHOR, 



Academy of Natural Sciences of Philadelphia. 



A. D. 1890. 



