10. One of the lower alleles of pod corn, tu”, has a high 
frequency in living varieties. This would not be expected 
if wild corn had been of the genotype tutu and if tw" rep- 
resents a mutation occurring during domestication. 
11. A genetically reconstructed ancestral form pro- 
duced by combining the characteristics of pod corn with 
those of certain varieties of popcorn is identical in vir- 
tually all of its characteristics with the hypothetical an- 
cestral form, based upon comparative morphology, de- 
scribed by Weatherwax. 
12. [t is concluded that the pod-corn theory now has 
greater validity and more evidence in its support than 
when it was first proposed. 
[ 353 ] 
