Bul. 183, U. S. Dept. of Agriculture. PLATE V. 
Fig. 1.—PHOTOMICROGRAPH OF THE SCUTELLUM OF A GERMI- 
NATING GRAIN WITH ITS EPITHELIAL LAYER. 
In the ends of the cells of the epithelial layer (¢) is to be seen the 
black deposit, thought by Torrey to be diastase. In front of the 
epithelial layer the endosperm has been reduced to a milky 
polution, while the scutellar cells back of it are obviously highly 
vital. 
Fic. 2.—TWO GRAINS OF FINNISH BARLEY. 
A grain of undesirable spindle shape and a small, insufficient 
scutellum. 
