Ges) DEPARTMENT OF AGRICULTURE, 
DIVISION OF ENTOMOLOGY—BULLETIN NO. 32, NEW SERIES. 
L. O. HOWARD, Entomologist. 
INSECT ENEMIES OF THE PINE TN THE BLACK 
HILLS FOREST RESERVE: 
AN ACCOUNT OF RESULTS OF SPECIAL INVESTIGATIONS, WITH 
RECOMMENDATIONS FOR PREVENTING LOSSES, 
PREPARED UNDER THE DIREUTION OF THE ENTOMOLOGIST. 
By A. D. HOPKINS, Ph. D., 
Vice-Director and Entomologist of the West Virginia Agricultural 
Experiment Station. 
WASHINGTON: 
GOVERNMENT PRINTING OFFICE. 
1902. 
