344 
Journal of Agricultural Research 
Vol. XI, No. 7 
INTERPRETATION OF RESULTS 
Observations taken at other places in the vicinity of Fresno covering 
a period of several years show that the ground water normally reaches 
its highest point during June. The rise up to this date is somewhat irreg¬ 
ular, owing to irrigation and a somewhat fluctuating flow in the irrigation 
canals. The decline in the water-table curve after June is more regular 
and continuous until after the rainy season is well advanced in January 
or February. This condition is not so marked in the data shown in 
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figures 2 to 8 as it probably would have been if the area covered by 
these observations had been larger. Local irrigations and variations 
in flow in the canals near by are responsible for the sudden rises and 
falls in the curves shown. 
On April 3, 1915, when the pump was started, the water table aver¬ 
aged slightly lower than on the corresponding date in 1914. The pump- 
