TABLE 20 



SUMMARY SHOWING MONTHLY USE OF WATER BY BERMUDA GRASS AND TULES AND EVAPORATION FROM WATER SURFACES, MAY, 1931, 



TO APRIL, 1932, IN TANKS AT SAN BERNARDINO, CALIFORNIA' ' 



' Tanks contained undisturbed soil. 



' All grass tanks covered during rains prior to December 1, 1931. 



*Tules eaten off by stock in September. 



* Hea\'j' rains ruined record for Bermuda grass tanks. 



' Not applicable to field conditions. 



4503— Bet. pp. 58-59 



