RESEARCH BULLETIN NO. 20 
THE UNIVERSITY OF NEBRASKA 
BULLETIN 
OP THE 
AGRICULTURAL EXPERIMENT STATION 
OF 
NEBRASKA 
CORN INVESTIGATIONS 
By T. A. Kiesselbach 
ACCEPTED FOR PUBLICATION JANUARY, 1922 
JUNE, 1922 
LINCOLN, NEBRASKA 
U. S. A. 
