CONCERNING THE TEXTURE OF THE SOIL 



39 



to flow easily and rapidly, tight-fitting soils with slow- 

 ness and with difficulty. 



In proof of this, note the flow of water during twelve 

 hours through sand and clay soils, both typical samples 

 of the field : 



Kind of Soil Inches 



Sand good potato soil 118.0 



Clay good meadow soil 1.3 



Since a soil composed largely of sand is open, but little 

 resistance is offered to the flow of water, for a tiny stream 

 is soon formed which remains constant so long as the 

 supply remains unchanged. On the other hand, the fine 

 particles these compose clay soils act as a barrier to 

 water as it goes downward to such an extent that only a 

 very small quantity ever makes its way through. 



A SOIL THAT NKEDS HUMUS 

 To get humus in the soil is to make the first step in soil improvement 



