TEXAS AGRICULTURAL EXPERIMENT STATION. 



Water for Crop Production. 



It must be remembered tbat these are uncultivated soils, and that, 

 when cultivation is given, much larger quantities of water are retained 

 by the cultivated soils. 



The rainfall, percolation and evaporation at Eothamsted, England, 

 for an average of twenty years, are given below, together with similar 

 results of th.p Texas experiments : 



The Eothamsted soil is a heavy clay, and is not cultivated. Evap- 

 oration at Eothamsted is much less than in Texas, but the percolation 

 through the heavy soils of Texas is remarkably close to that through the 

 one at Eothamsted. 



Evaporation and Percolation by Quarters. The following table, Xo. 

 7, shows the evaporation and percolation from the uncultivated soil 

 types by quarters. The results given are the average of the three years. 



TABLE NO. 7. 

 Percolation by Quarters. 



