46 J. J. STEVENSON CARBONIFEBOUS OF APPALACHIAN BASIN 



Feet Inches 



7. Sewickley [Tyson] coal bed 5 6 



8. Shale and some sandstone 46 



9. Coal bed [Bedstone] 2 6 



10. Sha le, sandstone, and shale 28 4 



11. Limestone 5 6 



12. Shale 7 8 



13. [Pittsburg] coal bed 40 4 



Feet Inches 



Coal and shale.'. 7 4 



Shale 19 11 



Coal and shale 3 7 



Main coal 9 6 



The Waynesburg or Koontz bed is 8 feet 5 inches at Koontz, in Gar- 

 rett, and 6 feet at Lonaconing, in Allegany. As at the west, it is triple 

 to quadruple, with, at one locality, broad clay veins. It is from 90 to 

 115 feet above the Sewickley or Tyson coal bed. The thin streak re- 

 ferred to the Uniontown coal bed was observed only in this shaft, its 

 place being concealed elsewhere. The Sewickley is an important coal 

 bed, single, double, or even more divided, with at times nearly 5 feet of 

 coal and thicker toward the southern end of the area. The coal bed, 

 Number 9, thought by the Maryland geologists to be possibly the Lower 

 Sewickley seems rather to be the Eedstone. The assignment of the 

 lower part of the section to the Pittsburg horizon is in accord with 

 Doctor White's original suggestion respecting the section in Mineral 

 county of West Virginia and it is rendered the more probable by condi- 

 tions farther west. The following measurements show the variations in 

 the bed: 



Feet Inches Feet Inchei 



Coal and shale. 7 4 8 3 



Shale 19 11 22 6 



Coal and shale 3 7) 



Coal 9 6 f ^2 6 



Total 40 4 43 3 



Coal 4 6 2 



Shale 2 6 



Coal 1 9 6 



Shale 4 9 16 



Coal 10 4 6 



Shale and S. S 6 11 18 



Coal 14 7 



Total 34 63 



