268 PHYSIOGRAPHY AND GEOLOGY OF THE COASTAL PLAIN PROVINCE. 



Mechanical analyses of Norfolk coarse sandy loam. 



The Bureau of Soils has recognized and mapped in the Norfolk area 

 seven distinct types of arable soils, and two nonarable types (Galveston 

 sand and Swamp). The table below gives the area and extent of each of 

 these types. 



Areas of different soils. 



Soil 



Leonardtown loam 



Norfolk fine sandy loam 



Portsmouth sandy loam 



Norfolk loam 



Norfolk sand 



Swamp 



Galveston sand 



Portsmouth sand 



Leonardtown gravelly loam 



Total 



194,112 



Of the seven arable types of soils in the Norfolk area, six (Leonard- 

 town loam, Norfolk fine sandy loam, Portsmouth sandy loam, Norfolk loam, 

 Norfolk sand, and Portsmouth sand) are good trucking soils, while the 

 remaining one (Leonardtown gravelly loam) is best adapted to the growth 

 of ordinary farm crops. 



The tables below show the texture of typical samples of the soil and 

 subsoil of the seven arable types mapped and described by the Bureau of 

 Soils in the Norfolk area. 



