Bui. 41, Div. of Entomology, U. S. Dept. of Agriculture. 
Plate XI. 
Fig. 1.— Gasoline-power Sprayer, Showing the Engine and 
Spray Pump. 
Fig. 2.— Gasoline-power Sprayer as it was Improved During the Season. 
Fig. 3.— Same Sprayer as in Fig. 1, but Seen from the Other Side. 
Showing Filling Pump and Attachments. 
GASOLINE-POWER SPRAYING MACHINES. 
