8 BULLETIN: 734, U. 8. DEPARTMENT OF AGRICULTURE. 
A FACTOR INFLUENCING MARKET GRADE AND MILLING 
QUALITY. 
Tn saz nples of grain obtained from millers and farmers throughout 
the State of Virginia these galls were found in amounts varying 
A pho BS Be ees 
Fic. 6.—Showing the comparison between heads infected with the nematode disease 
and the stinking-smut disease of wheat. A, head infected with nematodes; B, 
sound head; C, head infected with stinking smut. 
from 0.1 per cent to 25 per cent. As a grading factor this is ex- 
tremely important, as the galls must be classed as foreign material 
and calculated as dockage if they can be removed readily from the 
