154 ASS EMBLY 
cile current hybridization between varieties of a race, at least in 
most instances. The red color, however, is very resistant, and sel- 
dom shows change. This conclusion is too evident to require tabu- 
lation. | 
Proposrrion 6. Where cross-fertilization has taken place in 
marze, the tendency is to produce both parental types, and not 
toward intermediates. : . 
A slight examination of our records shows as well what experience 
confirms, that cross-fertilization is quite general between varieties of 
a race, and that if selection does not interfere, two distinet varieties 
can be continued for an unknown period within the same nomencla- 
tnre unless they are such that climate can differentiate an exclusion 
of the one in favor of another. Thus the flint corn, which may be 
described as Early Canada and Canada, quite distinct forms, can be 
grown together, and are grown together, without being noticed. 
The same is true of the Canada and the Dutton, as also of many 
other kinds. We have already incidentally called attention to this 
duplication within a variety in the case of some sweet corns. Fur- 
ther illustration in flints is seen in Nos. 1847, 1868, 1871 and 1872; 
in dents in Nos. 1874, 1879, 1882, 1884, 1885 and 1887; in soft 
corus in Nos. 1889, 1893, ete. 
Proposrrion 7. Color can pass, through current hybridization, 
very freely from one agricultural species to another. 
The proof of this proposition is at once obtained by the reading 
of the descriptions of the current hybridization of the twe years 
records. 
Proposrrion 8. Led color is the strongest of the colors im resist- 
ing the action of current hybridization, yet % 1s by no means tn- 
sensible to the action of proper pollen. 
For support of this proposition see especially Nos. 1841, 1866, 
1902, 1926 and others. 
“Proposition 9. Hernels can be partially fertilized by several 
kinds of pollen. 
Reference to Nos. 1814, 1817 and 1902. It is probable also that 
the many purple striped kernels are also in evidence. 
Proposition 10. Sports in a crop from hybridized seed are not 
common. 
The proof of this proposition is the readiness in which, in most. 
cases, the various kinds of corn grown from Station-grown seed can 
be referred to varieties with which crossing could have taken place, 
and the closeness with which the ears came to described types. 

