252 



Journal of Agricultural Research 



Vol. X, No. s 



Table XXI.— /lc<«a/ evaporation from Rio Grande material, No. 12, with water table at 

 different depths below the surface. A II tanks i.gdfeet in diameter 



Period ending < 



Actual depth of water evaporated 

 (inches). 



Aug. 12 



IS 



17 



^ 29 



Sept. 12 



25 



29 



Oct. 4 



10 



16 



Total 



Percentage ^ 



" The period began on Aug. 9, 1916. 



6 Water surface taken as 100 per cent. 



Table XXII. — Actual evaporation from, Arkansas material, No. 11, with water table at 

 different depths below the surface 



Period ending < 



Actual evaporation depth (inches). 



Aug. 29 



Sept. 12 



25 



29 



Oct. 4 



10 



16 



Total 



Percentage c 



« The period began on Aug. 17, 1916. 



6 10.32 equivalent for tank i.g6 feet in diameter. See Table XXIV giving ratio for this correction. 



c Water surface taken as 100 per cent. 



