t% D 
U. S. DEPARTMENT OF AGRICULTURE, 
BUREAU OF ENTOMOLOGY— BULLETIN No. 121. 
L. O. HOWARD, Entomologist and Chief of Bureau. 
m THE BEHAVIOR OF THE HONEY BEE 
IN POLLEN COLLECTING. 
BY 
D. B. CASTEEL, Ph. D., 
Collaborator and Adjunct Professor of Zoology, 
University of Texas. 
Issued December 31, 1912. 
WASHINGTON: 
GOVERNMENT PRINTING OFFICE. 
1912. 
