_ single kernels that either accidentally or purposely have grown 
504 : 
kernels, five had some flint, one had some flint and soft, and one 
had some flint, dent and soft kernels. 
We hence would conclude that current fertilization, or the = 4 
effect of the pollen of the same year, is not facile between the spe- 
cies except in the case of the sweets. Professor Kellerman, of the 
Kansas Experiment Station, in the Report for 1888, p. 331, gives 
the result of artificial crossings, as below: 
Pop X dent. 1 trial. .No evidence of a cross. 
Flint X pop. 1 trial. “ * 
Flint X flint. 3 trials. ve « 
Flint X dent. 7 trials. we “ 
Flint X sweet. 1 trial. ‘“ “ 
Dent X pop. 2 trials. No certain evidence of a cross. 
Dent X flint. 4 trials. No evidence of a cross; I trial, 
slight evidence of a cross. Se 
Dent X dent. 6 trials. No clear evidence of a cross. 
Dent X sweet. 2 trials. No evidence of a cross. — 
Sweet X pop. 3 trials. Clear evidence of a cross. : 
Sweet X flint. 1 trial. Doubtful evidence of a cross; 2 trials, 
clear evidence of a cross. ns 
Sweet X dent. 1 trial. No evidence of a cross; 2 trials, 
apparent evidence of a cross. 
Sweet X sweet. 3 trials. No evidence of a cross. } 
Thus the evidence collected by two different set bos gue 
results in unison; as shown more meee below: 
Female parent. Sturtevant. | Kellerman. 
Zea everta. No evidence in favor. No evidence in favor. 
wndurata. do do Be 
indentata. Slight evidence in favor. Slight evidence in favor. en 
amylacea. do ox ee 
ee 
saccharata. Much evidence in favor. Much evidence in favor. — 
That corn will self-fertilize seems evident from the always se 
finding of kernels, and occasionally well-filled ears, on plants from 
remote from other plantings of their kind. This positive als 
dence, perhaps not conclusive on account of the facility by which 
: pollen i is moved by the wind, seems to me to outweigh | the 
e results Ud ape wy oueervers for sane trials. 8 : 
