80 J. J. STEVENSON CARBONIFEROUS OF APPALACHIAN BASIN 



ner, adjoining Columbiana county, shows two coal beds, very thin, at 

 11 and 26 feet below the Gray limestone, which are evidently the Tio- 

 nesta and the Upper Mercer, while at Magnolia, on the southern border 

 of the county, a boring shows at 27 feet below the Gray limestone 2 feet 

 4 inches oflimestone overlying 1 foot of coal, clearly the Upper Mercer. 

 Professor Orton gives a section showing the Tionesta and the Mercer 

 coal beds at 6, 15, and 57 feet below the Putnam Hill or Gray limestone 

 coal bed, with both of the Mercer limestones present. The Homewood 

 is not recognizable and its place is filled with shale or fireclay.* 



In Medina county, according to Mr Wheat, the Sharon sandstone is 

 130 feet thick ; but in Wayne, south from Medina and west from Stark, 

 it has become so insignificant that Mr Read practically ignores it, consid- 

 ering the petty local accumulations as merely material from the Waverly 

 hills which bounded the irregular valleys in which the Sharon coal bed 

 was deposited. In Stark county the least interval between the Sharon 

 coal bed and the Zoar or Lower Mercer limestone is given by Newberry as 

 130 feet, but Mr Read gives the extreme interval in Wayne county as only 

 60 feet — a statement confirmed by the observations of Professor Wright 

 in Holmes county, as well as by Mr Read's measurements in Knox 

 county. The interval diminishes, according to Mr Read, so rapidly that 

 at a few miles west from the line of Stark county and almost on the 

 Knox border it is only 32 feet. The Connoquenessing, though often 

 sandstone, is replaced by shale in much of this count}^. Traces of the 

 Quakertown coal bed were seen occasionally, but the Lower Mercer is 

 persistent, while the Upper Mercer, at a few feet above the Lower Mercer 

 limestone, becomes important locally as a 5-foot bed of very fair cannel.f 



In the northwestern corner of Tuscarawas county, south from Stark, 

 Professor Orton finds this succession : 



Feel. Inches 



1. Putnam Hill limestone and coal bed. . . 



2. Shale 30 



3. Coal bed 3 



4. Shale 10 



5. Limestone, gray or blue 2 6 



6. Fi reclay and shale 23 



7. Blue limestone 6 



8. Coal and shale 7 9 



9. Fireclay and shale 30 



Here are the Tionesta and Lower Mercer coals, with both of the Mercer 

 limestones. This locality is about 10 miles from Magnolia, in Stark 



* J. S. Newberry: Vol. iii, pp. 155, 159, 165, 166, 170, 172, 173, 



E. Orton : Vol. v, 1884, pp. 231, 811. 

 t M. C Read : Vol. iii, pp. 525, 531, 533, 537. 



