no 



DRY-FARMING 



of a clay soil to a depth of S feet to be 19 per cent; 

 of a clay loam, to be 18 per cent; of a loam, 17 per 

 cent ; of another loam somewhat more sandy, 16 per 

 cent ; of a sandy loam, 14i per cent, and of a very 



iiG, 



29. Rainwater moving downward through soil becomes changed 

 into a capillary film of water around the soil particles. 



sandy loam, 14 per cent. Leather found that in the 

 calcareous arid soil of India the upper 5 feet con- 

 tained 18 per cent of water at the close of the W'et 

 season. 



It may be concluded, therefore, that the field-water 

 capacities of ordinary dry-farm soils are not very 

 high, ranging from 15 to 20 per cent, with an average 

 for orcUnary dry-farm soils in the neighborhood of 



