39 

 PRACTICE 18 



Soils 



Sand Loam 



Silt 



Clay Peat 



Weight of tube 



Weight of tube + air-dry soil 



Weight of air-dry soil 



Percent of hygroscopic moisture . 



Weight of water-free soil 



Time to become moist 



Depth of dry soil 



Depth of wet soil 



Weight of water retained 



Percent of water retained 



Apparent specific gravity 



Weight of cubic foot of soil 



Pounds of water per cubic foot.. 

 Acre inches of water 



