SB 

 818 

 C578 

 ENT 



Issued May 10, 1911. 



U. S. DEPARTMENT OE AGRICULTURE, 



BUREAU OF ENTOMOLOGY -CIRCULAR No. 138. 



L. O. HOWARD. Entomologist and Chief of Bureau. 



THE OCCURRENC^E OF BEE DISEASES 

 m THE UNITED STATES. 



(PRELIMINAliY REPORT.) 



E. F. PHILLIPS, Ph. D. 



In Charge of Bee Culture. 



88305*^ 11 WASHINGTON : GOVERNMENT PRINTING OFFICE ' 1911 



