62 J. J. STEVENSON CARBONIFEROUS OF APPALACHIAN BASIN 



Cross Creek, Mount Pleasant, Cecil, and Allen townships, a distance of 

 about 25 miles. 



At Eldersville, in the northern part of Jefierson, the measurement is : 



Feet 



1. Washington coal bed 5 



2. Interval 85 



3. Limestone 1 



4. Concealed 100 



5. Sandstone 30 



6. Pittsburg coal bed 5 



The Washington coal bed, the great bed of the Dunkard formation, 

 is 216 feet above the Pittsburg, and at 2 miles away it is 50 feet above 

 the Wajrnesburg, making the interval from the latter bed to the Pitts- 

 burg only 166 feet. Three miles farther east, in western Smith town- 

 ship, the Uniontown limestone, bright yellow and thin, is 15 feet below 

 the Waynesburg coal bed, but near Eldersville the coal and limestone 

 are almost in contact. The Benwood is thin and in two layers, together 

 not more than 10 feet. The Pittsburg coal, as in the more northerly 

 townships, occasionally becomes block or even cannel. In northern 

 Cross Creek, the Monongahela is buried under Dunkard, but in the 

 southern part of that township the intervals are greater, for the Waynes- 

 burg is 90 feet below the Washington and 200 feet above the Pittsburg, 

 the increase in the latter interval being in the upper part of the section, 

 as the Waynesburg is now 50 feet above the Uniontown limestone, on 

 which rests the Uniontown coal bed. No trace of the Waynesburg lime- 

 stone is here. In the extreme southern part of the township the interval 

 is 55 feet and the yellow Uniontown limestone is 8 feet thick. 



An exposure in northwest Mount Pleasant shows the Waynesburg 

 coal bed 3 feet thick and 20 feet above the Uniontown coal bed, which 

 is separated by 2 feet of clay from its bright yellow limestone, 6 feet 

 thick. At a little way farther north, in western Smith, the interval 

 between the Waynesburg coal and the Uniontown limestone is but 15 

 feet. At Hickory, in Mount Pleasant, Doctor White made a direct 

 measurement, giving the interval between Waynesburg and Pittsburg as 

 235 feet, showing that this interval increases southeastwardly as well as 

 southwardly. In northern Cecil the Waynesburg is 210 feet above the 

 Pittsburg only about 8 miles from the locality where the Uniontown 

 limestone is 193 feet. There is no Waynesburg limestone anywhere 

 along this line until one reaches the western part of Peters township, 

 near the Monongahela river, where it is 12 feet below the coal bed. 



