PLATE 7 
A. —Net-necrosis Green Mountain stock (1916-G of Tables II and VI), photographed 
August 4, 1916, in southern Maine. 
B. —Net-necrosis Green Mountain stock (1916-B of Tables II and VI), photographed 
August 4, 1916, in southern Maine. 
C. —Net-necrosis Green Mountain stock (lot 1917-S, sublot 3, or 1917-A, sublot 3, 
of Table VI), in the foreground and healthy stock of different origin in the background, 
both grown under the same conditions. Photographed June 27, 1917, in north¬ 
eastern Maine, when the season was not yet advanced enough for leafroll to be most 
marked. 
