BULLETIX 30", U. S. DEPAETMEXT OF AGKICULTUEE. 
The discussion of adaptations of varieties given in the following list 
applies only to that section of the north-central Plains shown as a 
dotted area in figure 1 : 
TJ. S. Selection i60.— Kernels light yellow; depth medium shallow; hard, and but 
slightly dented; cob -white; ear surface smooth. Seed secured from central Cali- 
fornia. This variety 
is not adapted to this 
section. 
Calico. — The corns of this 
name are extensively 
grown in this section. 
There are many vari- 
ations in color, hard- 
ness, size and shape 
of ear, and length of 
time required to ma- 
ture. All are charac- 
terized by red stripes 
on the seed coat or 
hull of the kernel, 
but the color associ- 
ated with this may 
be either white or yel- 
low. Mixed cob col- 
ors predominate, but 
white and red cobs 
occur. Two strains 
are given below. 
(01 North Platte Cal- 
ico. — Kernel color 
medium; depth me- 
dium to shallow; 
somewhat flinty; sur- 
face, medium to 
smooth. Grown at 
North Platte Experi- 
ment Substation for 
several years, where 
some attention has 
been given to its se- 
lection to reduce 
sucker production 
and to increase yield. 
This corn has been 
Fig. 2.— Ears of com of U. S. Selection 13;^. 
used as a standard for the variety tests conducted at North Platte and has been 
outyielded there in but few instances. It will mature in the southeastern part of 
this section. _ 
(6) Mitchell Calico. — Similar to North Platte Calico except that it is about 10 days 
earlier in maturity and suckers somewhat more. This corn has been grown under 
irrigation for several years on the Scottsbluff. Nebr., Experiment Farm. It is 
adapted to similar conditions. 
Silver King, or Wisconsin 7. — Kernels white, medium to deep, inclined to starchiness; 
cob wliite; ear surface rough. Seed secured from AVisconsin. Will mature in the 
eoutheafitern part of this territory. 
