PRACTICE XX (Continued) 



Soils 1 •. 



Sand OR 

 Sandy 

 Loam 



Gray Silt 



OR Gray 



Silt Loam 



Brown- 

 Silt 

 Loam 



Clay or 

 Clay 

 Loam 



Peat 







Time required for soil to become moist on 

 surface 













Depth of dry soil 













Depth of wet soil 









] 



Weight of tube 







\ 



Weight of tube and air-dry soil 











Weight of air-dry soil 









i 



Weight of tube and wet soil 













Weight of tube and wet soil after drainage 

 ceases 













Weight of capillary w^ater retained, difference 

 in wt. of air-dry soil and wet soil drained . 













Per cent of hygroscopic water 











Weight of water-free soil ....... 











Per cent of capillary water retained on water- 

 free basis 









i 



Apparent specific gravity 





1 





Weight of a cubic foot of dry soil .... 













Pounds of water per cubic foot 













Acre inches of water 













Acre inches of water held by 6 inches of soil , 













43 



