AMEEICAN SPIDEES 



THEIR SPINNINGWORK. 



-0- 



A NATURAL HISTORY 



ORBWEAVmG SPIDERS OF THE UNITED STATES 



WITH SPECIAL REGARD TO THEIR INDUSTRY AND HABITS. 



-0- 



BY 



HENEY O. McOOOK, D. D., 



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



Professor of ENTOMOLonv in the Pennsylvania 



Horticultural Society. 



VOL. III. 



WITH DESCRIPTIONS OF ORBWEAVING SPECIES AND PLATES. 



PUBLISHED BY THE AUTHOR, 



Academy op Natural Sciences op Philadelphia, 



A. D. 1893. 



