mes DEPARTMENT OF AGRICULTURE. 
DIVISION OF ENTOMOLOGY. 
BULLETIN No. 4. 
fo ORs 
OBSERVATIONS AND EXPERIMENTS 
IN 
THE PRACTICAL WORK OF THE DIVISION, 
MADE 
UNDER THE DIRECTION OF THE ENTOMOLOGIST, 
TOGETHER WITH 
EXTRACTS FROM CORRESPONDENCE ON MISCELLANEOUS INSECTS. 
GOVERNMENT PRINTING OFFICE. 
1884. 
8993—Bul. 4 
