Effects of the 
Walnut Blight 
In some seasons 
the walnut suffers 
from a blight that very 
seriously injures the crop. 
The picture shows sam- 
ples of nuts ruined by the 
blight in a recent year. 
Mr. Burbank’s selective ex- 
perimenis, as the reader 
is aware, are always con- 
ducted with an eye to pro- 
ducing varieties that are 
relatively immune to the 
attacks of furgous pests. 
Such specimens as these 
would obviously be 
avoided in ail breed- 
ing experiments. 
