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“AMERICAN SPIDERS 
AND 
THEIR SPINNINGWORK. 
A NATURAL HISTORY 
ORBWEAVING SPIDERS OF THE UNITED STATES 
WITH SPECIAL REGARD TO THEIR INDUSTRY AND HABITS. 
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HENRY ©. MeCOOK, D.D, 
VICE-PRESIDENT OF THE ACADEMY OF NATURAL SCIENCES OF PHILADELPHIA; 
VICE-PRESIDENT OF THE AMERICAN ENTOMOLOGICAL SOCIETY ; 
AUTHOR OF “THE AGRICULTURAL ANTS OF TEXAS,” =. 
“THE HONEY AND OccIDENT ANTS,” 4. 
ETC., ETC. . 
Wiig: OTe 
PUBLISHED BY THE AUTHOR, 
ACADEMY OF NATURAL SCIENCES OF PHILADELPHIA. 
A. D. 1889. 
