Deo UEPART MENT OF SAGRICULTURE. 
FARMERS’ BULLETIN No. ig. 
IMPORTANT INSECTICIDES: 
DIRECTIONS FOR THEIR PREPARATION AND USE. 
[THIRD REVISED EDITION. ] 
BY 
Ct MAREATT: 
FIRST ASSISTANT ENTOMOLOGIST. 




























WASHINGTON: 
GOVERNMENT PRINTING OFFICE. 
1897. 
