128 STRATIGRAPHY THE MONONGAHELA SERIES. 



The analysis shows that this stratum would make excel- 

 lent lime for agricultural purposes, as the percentage of inert 

 matter is small, the carbonates of Calcium and Magnesium 

 and the Phosphoric Acid all being of value to the soil. Its 

 physical character indicates that it would make fine road- 

 metal. 



Another exposure of the Redstone Limestone in Court- 

 house District, Lewis, is the following, secured on the Grace 

 Butcher Farm, one-fourth mile east of Alkires Mills, on Skin 

 Creek: 



Thickness Total 

 Feet. Feet. 



1. Sandstone, massive, Cedarville 15 15 



2. Concealed 5 20 



3. Coal opening, fallen shut, thickness con- 



cealed, Redstone 20 



4. Concealed 12 32 



5. Sandstone, Weston , 10 42 



6. Shale, sandy 20 62 



7. Concealed, partly, with large boulders of 



limestone, Redstone 14 76 



8. Coal blossom, thickness concealed, Pitts- 



burgh (1085' B.) 76 



In Glenville District, Gilmer, the following exposure was 

 observed on Schoolhouse Run, 1.3 miles southward from 

 Blackburn, on the Benjamin Bartlett Farm: 



Feet. 



1. Sandstone, shaly, Cedarville 



2. Shale, sandy, and concealed 10 



3. Limestone, hard, yellow, to run, Redstone (885' B.) . . 3 



THE WESTON SHALE. 



In the vicinity of Weston, Lewis County, the Redstone 

 Limestone is separated from the Pittsburgh Coal by a bed of 

 gray shale, usually about 10 feet thick, that is worthy of no- 

 tice because it is being used for brick-making purposes. Its 

 position in the measures is shown by the following section 

 made at the shale pit of the Weston Brick Works, along the 

 West Fork River, one mile south of Weston : 



Feet. 



Limestone, hard, Redstone 2 



Shale, gray, Weston 10 



Coal, Pittsburgh (1020' B.) 1 



