AMERICAN SPIDERS 
AND 
THEIR SPINNENG WORK. 
A NATURAL HISTORY 
ORBWEAVING SPIDERS OF THE UNITED STATES 
WITH SPECIAL REGARD TO THEIR INDUSTRY AND HABITS. 
———-© 
BY 
HENRY ©. McCOOK, D.D., 
VICE-PRESIDENT OF THE ACADEMY OF NATURAL SCIENCES OF PHILADELPHIA; 
PROFESSOR OF ENTOMOLOGY IN THE PENNSYLVANIA 
TIORTICULTURAL Socrery, 
NOM I 
WITH DESCRIPTIONS OF ORBWEAVING SPECIES AND PLATES. 
PUBLISHED BY THE AUTHOR, 
ACADEMY OF NATURAL SCIENCES OF PHILADELPHIA, 
A. D. 1898. 
