458 
Journal of Agricultural Research 
Vol. XIV, No. ii 
December and January the precipitation was somewhat above normal, 
and the ground remained frozen from December 4 until early in February, 
except for an occasional thaw of the surface inch or two. These condi¬ 
tions favored the retention of the maximum amount of moisture which 
the soil could hold against gravity. Then followed 94 days, January 29 
to May 2, in which the total precipitation amounted to only 0.30 inch at 
Lincoln, and to 0.22 at the Nebraska Experiment Station, this being the 
driest 3-month period shown by the meteorological record for Lincoln, 
beginning in 1881. February was normally cold, but at the end of the 
month the temperature rose rapidly and during March continued high, 
the mean for the latter month being 16 degrees above the normal. April 
also was warm, with a mean of 4 degrees above the normal. The wind 
movement throughout this dry period was not unusually great, but 
during March and April the proportion of sunshine was much higher 
and the relative humidity of the atmosphere much lower than normal. 
Table IV .—Daily precipitation at the Nebraska Experiment Station from November 1, 
ipopt to May 31,1910 
Day. 
Novem¬ 
ber. 
Decem¬ 
ber. 
January. 
February. 
March. 
April. 
May. 
1*25 
0-75 
• 52 
.24 
.07 
0.40 
0.14 
.87 
•52 
. 21 
. 12 
0.08 
■ 14 
•52 
2. 93 
1. 11 
.04 
. 02 
O. 01 
. 10 
•33 
.04 
°. 09 
* 2$ 
•24 
. 14 
•34 
*• 57 
.28 
. 20 
•75 
•15 
Total..... 
8.00 
2. 02 
.88 
. 09 
. 08 
•05 
3 - 30 
1. 
2, 
3 
4. 
S' 
6, 
7 
8 . 
9 
10. 
11 
12 
13 
14. 
15 
16. 
17 
18, 
19, 
20, 
21 
22 
23 
24. 
25- 
26. 
27 
28. 
29. 
30. 
3i 
