ALLEGHENY FORMATION IN WEST VIRGINIA 149 



the interval from Pittsburg to Brookville is about 700 feet and in Cabell, 

 on the Ohio, it is 680 feet. The Freeport sandstone, 50 feet or more in 

 thickness, is hard and in part pebbly, at times reaching below the second 

 coal bed. The third bed is near the place of the Lower Kittanning and 

 the two beds at the bottom are in the Pottsville. 



Eight or 10 miles north from Burning Springs, Stevenson measured 

 the following section: 



Feet 



1. Shaly sandstone 20 



2. Red shale 105 



3. Shaly sandstone 30 



4. Red shale 55 



5. Sandstone, shaly to massive 65 



6. Chert 5 to 12 



7. Shale with nodular limestone 9 



8. Black shale 3 



10. Coal bed [Upper Freeport] 1 



11 Shale and sandstone 120 



The Ames limestone should be in the lower part of the upper red 

 shale, which is in the place of the "Big Eed" of Washington county, Ohio, 

 but it was not observed. The black shale overlying the coal is rich in 

 fossils similar to those obtained by the writer 35 years ago from shales 

 overlying the Upper Freeport near Morgantown. The coal is evidently 

 the Upper Freeport and the sandstone is in the Mahoning interval. The 

 presence of the chert in this position accompanied by the fossiliferous 

 shales was regarded by Stevenson as proving the identity of the Upper 

 Freeport with the Stockton of the Kanawha region. 



Eoane county is south from Wirt and west from Calhoun. The Pitts- 

 burg coal bed can not be identified with certainty, but at Spencer, 15 

 miles south from Burning Springs, the Washington coal bed of the 

 Dunkard formation is present in the hills. The place of the Pittsburg 

 is taken to be 474 feet below this coal bed on top of a sandstone 38 feet 

 thick. In Eitchie county the interval is 494 feet. 



Three sandstones are recorded at Spencer; the first, beginning at 470 

 feet below the assumed place of the Pittsburg, is 130 feet thick and 30 

 feet above a second, which is 20 feet thick. The third begins at 718 

 and is in the Pottsville. 'No trace of coal is here, but black slate at 660 

 to 688 feet below the Pittsburg may hold the carbonaceous material of 

 the Brookville horizon. These sandstones are recognizable in wells 6 and 

 10 miles southeast from Spencer, in one 6 miles east and in that on 

 Yellow creek, though of course, like all sandstones, they vary greatly 

 in thickness and so in the upper and lower boundaries. In the well 6 



