838 J. A. BOWNOCKER 



The Goose Run sand. — The formation known by this name has 

 supplied a score or more small wells near Marietta. The sand 

 is patchy, and the life of the wells very short. In fact, the rock 

 is of little value, and is recognized here simply to make the 

 record complete stratigraphically. Lying nearly 200 feet above 

 the Mitchell, the sand belongs 100 feet above the Pittsburg coal, 

 or, in other words, near the middle of the Monongahela forma- 

 tion. 



The following table shows the great divisions of the Coal- 

 measures of Ohio, and also the approximate positions, at least, in 

 these of the several sands just discussed : 



Dunkard formation, or Upper Bar- j Nq oU Qr gag rQcks- 

 ren Coal-measures, 500 feet. I 



, , _ . rT / Goose Run Sand. 



Monongahela Formation, or Upper \ 



. „ , , V J 100 feet. 



Productive Coal-measures, 200 teet. ) 



( Pittsburg or No. 8 coal. 



C 90 feet. 



Mitchell sand. 



Conemaugh formation, or Lower J 200 feet. 



Barren Coal-measures, 500 feet. First Cow Run sand. 



I Cambridge limestone. 



^ Mahoning sandstone. 



f Upper Freeport or No. 7 coal. 



Allegheny Formation, or Lower I Dunkard or 300-foot sand = ? 



Productive Coal-measures, 250 feet, j Freeport sandstone. 



50 feet. 



[" Macksburg 500-foot sand= ? Tion- 

 I esta sandstone. 

 Conglomerate Coal-measures, 250 J 70 feet. 

 f ee t. I Second Cow Run sand = Massillon 



I sandstone. 

 [^ Sharon or No. 1 Coal. 



J. A. BOWNOCKER. 



Columbus, 

 October 10, 1902. 



