TABLE 13 



SUMMARY SHOWING MONTHLY USE OF WATER BY SALT GRASS AND TULES AND EVAPORATION FROM SOIL AND WATER SURFACES, MAY, 



1929, TO APRIL, 1930, IN TANKS AT SANTA ANA, CALIFORNIA" 



'Tanks Nos. 1 to 12, inclusive, contained undisturbed soil; tanks Nos. 13 to 15. inclusive, contained disturbed soil. 

 All tanks covered during rains. 

 - Water table raised from four to three feet, October 1, 1929. 

 ' Record began May 8, 1929. 

 ' Not applicable to field conditione. 



4503— Bet. pp. 52-53 



