MARYLAND GEOLOGICAL SUEVET 



127 



surface soil. It extends to a depth of about 30 inches and is ahnost 

 universally underlaid by a coarse red sand mixed with fine gravel, having 

 an indefinite depth. 



The soil supports a natural growth of pitch pine, white oak and black 

 oak, and chestnut, this latter tree occurring more frequently on this 

 soil than on any other type represented in the county. The areas of 

 Norfolk loam occurring in the northern portion of St. Mary's County, 

 particularly in the vicinity of St. Joseph's Church, constitute what is 



Mechanical Analyses of Nokfolk Loam. 



5110 

 6112 

 6111 

 6113 



334 miles W. of Tellow sandy 



Sotterly. loam, to 10 



inches. 



1 mile B. of New- Tellow sandy 



market. loam, to 14 



inches. 



Subsoil of 5110 1 Medium red sand, 



10 to 40 inches. 



U..35 



2.38 



36.67 

 31.91 



18.66 

 7.78 



31.08 

 13.89 

 17.32 



9.24 

 14.91 

 23.63 



locally recognized as one of the most desirable tobacco soils in the county. 

 The average yield per acre is about 1300 pounds, and the average price 

 about 6 cents per pound. Wheat, corn, and clover are also raised on 

 this soil in regular rotation with the staple tobacco crop. The yield of 

 these crops on the Norfolk loam compares favorably with the average 

 yield of the same crops over the entire area of the county. 



The above analyses show the texture of the soil and subsoil of tlie 

 Norfolk loam. 



The Leonardtown Loam. 

 The most extensive soil type in St. Mary's County is the so-called 

 white-oak or kettle-bottom soil of the upland. It extends from the 

 vicinity of Eidge post office to the extreme northern limit of the county. 



