144 J. J. STEVENSON CARBONIFEROUS OF APPALACHIAN BAStN 



county, but in Ohio, on Cowrun, a few miles west, the Brookville coal 

 bed is present at 701 feet below the Pittsburg. The sandstones are un- 

 important on the westerly side, but a detailed record in the central part 

 of the county shows a sandstone 70 feet thick beginning at 515 and an- 

 other at 645 extending to 735 and cutting out the Brookville horizon.* 



Eeturning to the east, one may follow the section across Harrison, 

 Doddridge, Ritchie, and Wood counties to the Ohio river. 



Near Flemington, in Taylor county, 5 miles west from Webster, in the 

 same county, the Lower Freeport is at 590 feet below the Pittsburg, and 

 the Brookville is at 750 feet, with probably the Lower Kittanning at 711. 

 The combined Mahoning-Butler sandstones are 113 feet, cutting out the 

 Upper Freeport. The only other sandstones are 31 and 21 feet thick, 

 the latter at the Clarion horizon above the Brookville ; but at Clarksburg, 

 in Harrison county, 10 miles farther west, the succession as shown by a 

 boring is : 



Feet 



1. Pittsburg coal bed 



2. Interval 421 



3. Mahoning sandstone 84 



4. Shale 35 



5. Upper Freeport coal bed 3 



6. Slate 27 



7. Sandstone 145 



8. Slate 20 



9. [Brookville] coal bed 2 



10. Slate 36 



11. Sandstone 87 



Here the interval from Upper Freeport to the Brookville is 192 feet 

 and the lower bed is at 737 feet below the Pittsburg. The sandstone, 

 Number 11, is in the Pottsville. The notable change is in the appear- 

 ance of the sandstone Number 7, which is almost wanting at the east in 

 the sections near Flemington and at Webster. Ten miles west of south 

 from Clarksburg no sandstone appears until 750 feet below the Pittsburg, 

 where the Pottsville begins. The only coal bed recorded is at 600, which 

 can hardly be correlated. In the northwest corner of the county, 9 or 10 

 miles southwest from Mannington, no coal is reported; a sandstone 110 

 feet thick begins at 492 feet below the Pittsburg, cutting out the Free- 

 port coal horizons, and another begins at 702, which continues into the 

 Pottsville. At Browns mills, 4 miles southwest and 8 miles northwest 

 from Clarksburg, the upper sandstone is present, ending at 592, but 

 below it are only "slate and shells" for 300 feet. Cherry Camp is 7 miles 



* I. C. White : Geology of West Virginia ; Tyler, vol. \a, pp. 242, 248, 253, 256, 266 ; 

 vol. ii, p. 391 ; Pleasants, vol. la, pp. 269, 270-271, 273-274. 



