28 
BULLETIN 400, U. S. DEPARTMENT OF AGRICULTL T BE. 
The climate of these basins and valleys is usually regarded as 
semiarid to arid. Table XX shows the elevation of each station and 
the recorded annual and seasonal precipitation during the years 
11 
&£&$l ttHErag 1 
/ 
/ 
A - 1 , . " i 
\ : \ 
I / . 
i\ l 1 
[MM. ' '/' ' ^ 
Mm v « 
^M BL j mfwA Hi- •• V 
1 tw /l I^fl 
. # 
' . H¥ li 
; 2 f 3 f 
Fig. 8. — Heads and kernels of three varieties of soft white wheat, natural size: 1, Palouse Bluestem; 2, Early 
Baart; 3, Little Club. 
when the experiments herein reported were in progress, so far as the 
data are available. 
These areas are characterized by low precipitation. Most of it 
falls during the autumn, winter, and spring months instead of during 
