A STUDY OF WHEAT. 



between them. See Figures 8 and 9. The greatest difference 

 is found in the size of the large grains of starch, those of 

 Diehl being -^ of an inch in diameter, while in Clawson they 

 are only y^ of an inch in diameter; Tread well, ^b ; Wicks 

 -drr J E yP tian > Tfe ; Scaffer, T oVo ; Russian, TT V . Although 

 the difference is nowhere near as marked in the small grains, 

 still there is considerable difference in their size. Schaffer, 

 -3^ of an inch in diameter ; Treadwell, l \ ; Russian, ^^ ; 

 Egyptian, -g^-. These measurements were obtained by taking 

 a large number of as nearly typical grains as possible, meas- 

 uring them accurately, and then obtaining their average diameters. 



