Bui. 1074, U. S. Dept of Agriculture. 



Plate XX. 



Red Bobs (A). 



Kitchener (B). 



Spike . fa- eand Ide viev .natural lz< glumes from lower, central, and upper portions of spiku, 

 natural i vim; kernels In three positions and In tran irersi eetion, magnified 3 diameters. 



