Southeastern Washington and Adjacent Idaho. 51 



seen that a much higher water content was maintained in the 

 soils on the northeast slope. 



FIG. 14. Graphs showing the march of soil water to a depth of 5 feet 

 on a northeast slope from April 18 to August 15, 1914, and the water con- 

 tent of the soil on December 6, 1913. 



In order to further check these deep soil water conditions 

 samples were again taken in duplicate on the northwest and south 

 slopes of another prairie-covered hill. These findings, indicated 

 in Table VI, check very closely with the preceding, and the strik- 

 ing difference between soil water content on the two hillsides at 

 all depths is well shown. 



It may also be noted that at each determination the soil at any 

 depth was drier than at the same depth at the time of the preced- 

 ing determination. On the south slope, it is interesting to note 

 that without exception, the soil moisture increased with depth, and 

 that the same condition maintains in most cases for north-side soils. 



51 



