Bu!. 1118, U. 5. DeDt. of Agriculture. 
J 
Jt 
Plate XV. 
Fig. I. — Effect of Artificial Inoculation with the Citrus- 
Scab Fungus on Grapefruit. 
Fig. 2. — Cotton Pad and Inoculum Smear Used in Most 
Inoculation Experiments. 
