INHERITANCE OF WAXY ENDOSPERM IN MAIZE. 69 
seeds of a cross between the Chinese variety and Algeria would be col- 
ored horny. These seeds would all produce four classes of gametes, 
ORH, CRh, CrH, and Crh, resulting in ears with 3 colored seeds 
to 1 white and 3 horny seeds to 1 waxy when self-pollinated. This 
was found to be the case for all the ears secured, but no correlation 
was found between endosperm texture and aleurone color. 
Since the aleurone color of the hybrids Dh 234 and Dh 237 is 
shown to be the result of two independent factors, it becomes appar- 
ent at once that the correlation previously reported ,as between 
aleurone color and endosperm texture must be looked upon as a cor- 
relation between endosperm texture and one of the factors for 
aleurone color. 
CORRELATION IN THE SECOND GENERATION OF THE HYBRID 
DH 234. 
The homozygous color factor in the hybrid Dh 234 was designated 
C and the heterozygous factor was called &. Second-generation seed 
from this hybrid produced 37 ears, the result of self-fertilization or 
of crosses between sister plants in the same hybrid. (Table XX XI.) 
If the association were between the endosperm texture and the 
factor for color R, these ears would show a correlation, but should 
the association be between the color factor C and the horny endo- 
sperm texture the 37 ears obtained would exhibit no correlation, since 
all the gametes are homozygous for this factor. The correlation 
between aleurone color and horny endosperm texture for the 20,483 
seeds borne on the 87 ears was 0.004+-0.013, which is less than the 
probable error. Two individuals among these 37 ears showed cor- 
relations more than four times the probable error. 
Two correlations, however, exceeding the probable error by 4.6 
and 4.1 times would be expected to occur as the result of chance in 
37 observations once in about 19 times. As this chance is small, 
these correlations may be considered as the result of chance. The 
remaining ears showed no significant correlations; 16 of the 37 ears 
had negative and the remainder positive correlations between colored 
aleurone and horny endosperm. 
The results from the self-pollinated ears of the hybrid Dh 234 
would indicate that there is no correlation between endosperm tex- 
ture and the color factor which is heterozygous in this maize hybrid. 
This factor has been designated 2. 
