CAPILLARY MOVEMENT OF SOIL MOISTURE. 



35 



SOILS ESED. 



Table 21 gives a list of the flumes inclined upward at an angle of 

 15° and soils contained in each. 



Table 21. — Soils in flumes inclined upward at an angle of 15°. 



Number 

 of flume. 



39 



58 

 76 

 96 



206 



Description. 



Decomposed granite with clay from Riverside, Calif. 

 Heavy clay soil from Whittier, Calif. 

 Sand and gravel soil from Upland, Calif. 

 Lava ash from Idaho. 

 Sandy soil from Idaho. 



MOVEMENT OF MOISTUEE. 



Figure 5 gives the distance the moisture had moved in the flumes 

 at the end of the time indicated. The horizontal element is the time 

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Fig. o. — Rate of movement of moisture in open flumes 

 inclined fifteen degrees upward from the horizontal. 

 Figures in circles indicate the points at which that 

 number of liters of water had been taken up. 



