WORK OF THE SAN ANTONIO EXPERIMENT FARM IN 1912. 9 
and sorghum, were good. The preceding winter was one of unusual 
severity and the amount of winter rainfall was somewhat above the 
normal. From June 23 until late in September practically no rain 
fell, the total precipitation for the months of July and August being 
only 0.33 inch. This continued drought of nearly three months cut 
the cotton crop short. The spring was late and consequently the corn 
and other early-planted crops were somewhat late in maturing. The 
total precipitation for the year, as measured at the farm, was 26.37 
inches,! which is practically the normal for this section, but somewhat 
higher than the mean annual rainfall for the period 1907 to 1912, 
inclusive. 
The meteorological observations at the experiment farm are made 
in cooperation with the Biophysical Laboratory of the Bureau of 
Plant Industry. Table I shows the summaries for 1912 compared 
with the means for the six-year period 1907 to 1912, inclusive. 
TABLE I.—Summary of meteorological observations at the San Antonio EHaperi- 
ment Farm, 1907 to 1912, inclusive. 
PRECIPITATION (INCHES). 
Item. Jan. | Feb. | Mar. | Apr. | May.| June.j July. | Aug. | Sept.} Oct. | Nov. | Dec. | Total. 
| (eee eee EE ee ee eee Se eee eee EEE Eee 
Average, 6 years, 
1907 to 1912, in- 
CIMSIVOs 2) a 0.54 | 2.23 | 1.66 | 2.96 { 2.47 | 1.28 | 1.54 | 1.63 | 1.15 | 2.60 | 2.52 | 1.88 | 22.46 
For the year 1912...| .31 | 6.21 | 2.30 | 2.04 | 1.64 | 3.42} .08; .25 | 1.53 | 2.92 | 1.76 | 3.91 | 26.37 
EVAPORATION (INCHES).? 
Average, 6 years, 
1907 to 1912, in- 
elusive: ...2..:-- 2.72 | 3.12 | 4.68 | 5.32 | 6.63 | 8.40 | 8.69 | 9.39 | 7.31 | 5.23 | 3.21 | 2.38] 67.07 
For the year 1912...| 2.35 | 3.35 | 3.05 | 3.88 | 7.39 | 7.02 |10.59 |10.65 | 8.52 | 5.41 | 3.23 | 1.83 67.26 
DAILY WIND VELOCITY (MILES PER HourR).3 
1911, highest......-- 10.4 |15.9 | 9.0 {10.6 Qe On 12 bes 12a: 6.6 8.5 9.5 es Dies | serene 
1912, highest.......- 8.2 {11.2 6.4 6.0 | 5.9 8.4 7.3 7.6 6.5 7.6 yer SP Opal eee ee 
GIIEMOWESIES 22s sec 1.12 | 1.45°| 2.24 | 3.28 | 2.17 | 2.34 | 2.82 | 1.82']. 1.98 .86 | 1.06 A (asl lee eee 
1912, lowest........ Bile tO2, Nee SON eed. [pearl 108. e388 2230) T4289) 76) Sl eae 
NOMI AVELASe 2.255. - 5.60 | 7.02 | 5.20 | 6.10 | 5.60 | 6.40 | 6.86 | 4.59 | 3.91 | 3.76 | 3.24 | 3.36 |..._... 
3.50 | 2.68 | 3.23 | 2.92 | 4.27 | 4.83 | 3.75.| 3.84 | 2.68 | 2.80 |....... 
1912, average......- 3.16 | 4.00 
1 The rainfall in the city of San Antonio in 1912, as reported by the United States Weather Bureau, 
was 23.7 inches, which was 3.2 inches below the normal. 
2 The evaporation measurements missing are as follows: 
1909.—April, 2 days; June, 3 days; July, 6 days; August, 1 day; November, 1 day. 
a anuary, 7 days; February, 2 days; June, 3 days; July, 5 days; October, 4 days; December, 
ays. 
1911.—April, 1 day; July, 2 days. 
1912.—February, 2 days; April, 1 day; December, 2 days. 
3 Wind velocities are reported for the years 1911 and 1912 only. 
84899°—Cir. 120—18 2 
