PLATE 5 
A. —Leaves from Green Mountain plant inoculated with juice from streak seedling, 
showing spotting, streaking, and burning. Some dead spots apparently spreading 
along veins producing a streaked appearance. 
B. —Leaf of seedling with streaking, spotting, and burning of streak. 
C. —Green Mountain plant showing streak resulting from leaf mutilation inoculation 
with juice from streak seedling when plant was about 15 cm. high. July, 1921. 
