U.S. DEPARTMENT OF AGRICULTURE. 



DIVISION OF ENTOMOLOGY. 



BIBLIOGRAPHY 



OF 



THE MORE IMPORTANT CONTRIBUTIONS 



TO 



AMERICAN ECONOMIC ENTOMOLOGY. 



PREPARED, BY AUTHORITY OF THE SECRETARY OF AGRICULTURE, 

 I'A" 



SAMUEL HENSHAW. 



INDEX 



TO 



Parts I, II, and III. 



WASHINGTON: 



GOVERNMENT PRINTING OFFICE, 

 181)0. 



