18 Nebraska Experiment Station Research Bulletin 19 
are not available to show the relative differences in evaporation 
rate for different parts of the State. It is quite likely, however, 
that as we progress in a northwesterly direction, the accelerating 
evaporation effects of a lower humidity are in part offset by 
the reduced temperature. The evaporation rate is unquestion- 
ably reduced from the south to the north. Most of the country 
south of the Platte River is subject to occasional detrimental 
hot winds with excessive evaporation power, while such winds 
are seldom known farther north. 
ABSORPTIVE AND RETENTIVE POWER OF THE SOIL 
Regionally, the soil differs somewhat in absorptive and 
retentive power due primarily to a difference in texture. The 
soils of central and western Nebraska are somewhat more porous 
than eastern soils, and consequently less subject to runoff. In 
Table 3. — Precipitation During Five Spring and Summer 
Months in Regions Where Corn Adaptation Studies Were 
Located. 1915. 
Location 
Precipitation 
April 
May 
June 
July 
August 
Total 
County 
(1) 
Inches 
(2) 
Inches 
(3) 
Inches 
(4) 
Inches 
(5) 
Inches 
(6) 
Inches 
(7) 
EASTERN NEBRASKA 
Richardson 
1.87 
7.62 1 
5.69 
9.93 
5.28 
30.39 
Washington 
1.25 
7.72 
4.45 
8.55 
2.92 
24.89 
Thurston 
.60 
5.92 
7.74 
6.95 
2.45 
23.66 
Lancaster 
1.37 
4.77 
4.03 
6.74 
5.57 
22.48 
Nuckolls 
1.92 
5.17 
9.71 
4.94 
3.29 
25.03 
Average 
1.40 
6.24 
6.32 
7.43 
3.90 
25.29 
CENTRAL NEBRASKA 
Kearney 
Holt 
Lincoln 
Cherry 
3.06 
2.63 
7.10 
3.46 
6.04 
4.85 
5.55 
3.84 
8.44 
5.17 
3.39 
4.52 
7.96 
5.30 
4.66 
7.40 
6.84 
1.31 
4.23 
.89 
32.34 
19.26 
24.93 
20.11 
Average 
4.06 
5.07 
5.38 
6.33 
3.32 
24.16 
WESTERN NEBRASKA 
Grant* 
6.31 
4.62 
6.81 
4.27 
5.65 
27.66 
Dawes 
2.93 
3.16 
4.84 
2.99 
5.11 
19.03 
Kimball 
5.03 
3.05 
3.53 
1.07 
1.75 
14.43 
Average 
4.75 
3.61 
5.06 
2.74 
4.17 
20.37 
♦Rainfall in Grant County was not available for 1915, and data from 
Arthur County, bordering on the south, have been supplied. 
