8'4 J. J. STEVENSON CARBONIFEEOUS OF APPALACHIAN BASIN 



of Ohio. In the eastern part of the county the Waynesburg is 237 to 244 

 feet above the Lower Sewickley and 330 to 350 feet above the Pittsburg. 

 A core obtained at Pine Grove, midway in the county, and measured by 

 Doctor White, shows the Pittsburg, Eedstone, Lower Sewickley, Union- 

 town, and probably the Waynesburg coal beds, all of them very thin, 

 none exceeding 2 feet 2 inches. The Waynesburg and TJniontown lime- 

 stones are wanting, but the Benwood, Fishpot, and Eedstone are still 

 present. The intervals shown by this core are : 



Feet Inches 



Waynesburg coal bed 6 



Interval 96 



Unipntown coal bed 1 6 



Interval 143 11 



Sewickley coal bed [Upper ( ?) ] 2 2 



Interval 79 6 



Redstone coal bed 1 7 



Interval 24 9 



Pittsburg coal bed 2 2 



In the northeast corner of the county, adjoining Monongalia, the 

 Waynesburg is 340 feet above the Pittsburg and in the southeast corner 

 the interval is 350 feet, with the Washington at 165 feet above the 

 Waynesburg. Midway along this line the Uniontown is recorded at 

 377 feet above the Pittsburg and 230 feet below the Washington, the 

 intervals being greater than at Pine Grove. There the Washington is 

 but 484 feet above the Pittsburg, and at a little way northeast the interval 

 is 475. Very possibly the little coal at Pine Grove correlated with the 

 Waynesburg may be a local streak or one whose thinness has prevented 

 recognition at surface exposures. The interval to the Pittsburg, 359 

 feet, is too great, in view of decrease in other intervals. The Waynesburg 

 and Uniontown coal beds are so thin that they have been overlooked by 

 the drillers at most places, but on the northern border of the county, at 

 10 miles east from the Ohio river, the interval from the Washington has 

 decreased to 446 feet, and there is another bed at 356 feet. One mile 

 farther north, in Marshall county, cores obtained by Mr. Barnes show 

 the Waynesburg at 306 feet and the Uniontown at 233 feet above the 

 Pittsburg. The first coal bed above the Waynesburg would be about 120 

 feet above the Uniontown. Where the formation comes to the surface, 

 10 or 12 miles farther northwest, the Waj'nesburg, 55 feet above the 

 Uniontown, is but 238 feet above the Pittsburg and 110 to 115 below 

 the Washington. There are no well records near the Ohio river, but a 

 section at that river in the extreme northwest comer of the county shows 

 the Uniontown, said to be 3 feet thick, at 75 feet above the river and, as 



