_ The ripened seed, that is, the flint, is saved for next year’s use — 
tion may be offered. In 1883 1 received some Min St 
512 
seed from the 1882 crop was again planted on a half-acre area — 
greatly exposed to the pollen of over 100 kinds. In this crop no. 
influence of other varieties was to be seen. In 1884 the same con- 
dition of things, and the resulting crop purely on type. So again 
in 1885. We have here a strong piece of evidence in favor of the 
resistance to crossing from plants from pure seed. Similar in- 
stances are afforded by the Silver White flint and the Minnesota 
dent. The former has been the only variety grown from time im- 
memorial by the few farmers in a secluded valley in Orange 
county, N. Y., and the latter seems to be the only variety of dent 
grown near Ogdensburg, N. Y. Per contra, one plot of Wau- 
_ shakum flint was alongside a plot of Minnesota dent in 1882. In 
1883 seeds from both plots yielded a crop of corn partly Minne- 
sota dent and partly Waushakum flint, and no intermediates. : 
It is to the rarity of intermediates and the prevalence of ae 
atavism that we may look for the explanation of the frequent — 
statements of flint changing to dent or dent to flint when seed has — 
been obtained from distant localities ; a result popularly ascribed 
to influence of climate. It is to be observed that the change is 
always towards the prevailing variety of the locality where the ree 
attempt is made. Let us offer a supposed instance for illustration. — 4 
A farmer in Maine, where flint corn is exclusively grown, plants 
some dent corn on trial. The plants become hybridized from the 
neighboring plants. The next year’s sowing yields flint and dent 
ears, the former ripe, the latter immature at the period of harvest. a 
The next year the crop is almost entire flint, and the farmer certi- 
fies at his next corn-talk that dent always changes to flint in his 
climate. The result here is influenced in great part by an uncon 
scious selection. This illustration also seems to hold true ™ 
explaining the statements that Canada flint becomes larget when 
removed southward. This may be true, but I know of no g00™ 
evidence in favor of such a change being produced by climatic 
conditions alone, although I admit its possibility. The Dwarl 
Golden pop, very small kernelled, retains its character for a 
as grown by some farmers, not even changing to the very near i 
larger eared Golden pop of our seedsmen. One striking ily 
