SECTION OF IRRIGATION AND METEOROLOGY. 
23 
§ 27. A tank similar to those used as a basis of measurement 
in the lakes already mentioned, was placed in Warren’s lake, four 
miles southeast of the College, floated by pontoons and observed 
weekly during 1889 and 1890. The lake was a resort for fishing, 
and the tank was often interfered with, so that the observations were 
abandoned after the two years experience. 
TABLE XI. 
1889. 
No. Days. 
Temperature. 
Degrees, 
Fahrenheit . 
Loss— Inches. 
Rain at Col- 
lege — Inches. 
Total Loss — 
Evaporation- 
Inches. 
Loss per Day | 
—Inches. j 
June 25 to July 11 
16 
72-74 
2.65 
.40 
3.05 
.19 
July 11 to July 19 
8 
74—74 
1.31 
.39 
1.70 
.21 
July 19 to July 27 
8 
74-73 
2.50 
.50 
2.50 
.31 
July 27 to August 1 
5 
74-72 
1.56 
0 
1.56 
.31 
September 4 to September 9 
5 
66—68 
1.34 
0 
1.34 
.27 
September 9 to September 20 
11 
68—62 
2.39 
.28 
2.67 
.24 
September 20 to September 28 
8 
62—60 
1.86 
.10 
1.96 
.25 
September 28 to October 4 
26 
60—59 
1.28 
0 
1.28 
.21 
October 4 to October 17 
13 
59-54 
1.46 
.44 
2.00 
.15 
October 17 to October 25 
8 
54-52 
1.92 
.02 
1.94 
.24 
TABLE XII. 
1890. 
No. of Days. 
Temperature. 
Degrees, 
Fahrenheit. 
Loss— Inches. 
^ 00 
O I 
o 
a 
031 — ( 
.2 
cS M 
M A 
Total Loss- 
Evaporation- 
Inches . 
1 Loss per Day 
I —Inches. 
April 30 to May 6 
6 
57 
.86 
.40 
1.26 
.21 
May 25 to June 1 
7 
62-66 
1.98 
0 
1.98 
.28 
June 14 to June 21 
7 
74 
1.90 
0 
1.96 
.28 
J une 28 to J uly 5 
7 
76-74 
.83 
.42 
1.25 
.18 
July 5 to July 12 
7 
74-78 
1.52 
.05 
1 1.57 
.22 
July 19 to .1 uly 26 
7 
76-79 
1.82 
.42 
2.24 
.32 
July 26 to August 2 
7 
79-77 
.05 
.35 
2.40 
.34 
August 2 to August 9 
7 
77—72 
2.15 
.06 
2.21 
.32 
August 9 to August 23 
14 
72-74 
1.13 
3.08 
4.20 
.30 
August 23 to September 1 
10 
74-70 
1.40 
T 
1 40 
.14 
Septemhpr 22 to Sppt.pmhAr 26 
4 
63—62 
1.96 
0 
1.96 
.49 
September 26 to October 3 
7 
62 
1.73 
T 
1.73 
.25 
The observations were taken in the afternoon between 2 and 
5 p. m., generally about 3 p. m., or near the highest temperature of 
the day. 
A similar tank was placed in the Arthur ditch where it passes 
through the College grounds. Observations were taken daily. While 
not the same as reservoir conditions, it gives data for comparison : 
June, 1889 2.89 inches Record based on 16 days 
July, 1889 4.13 “ “ “ 31 “ 
August, 1889 3.94 “ “ “ 21 
§ 28. From the above data we obtain the basis for estimating 
the evaporation at the same rate for the calendar months : 
