118 J. J. STEVENSON CARBONIFEROUS OF APPALACHIAN BASIN 



Feet 



27. Little Washington coal bed 1 



28. Shale and clay 2 to 10 



29. Limestone 2 



30. Concealed 79 



31. Cassville shale 21 



to the Waynesburg coal bed. Fragments of the Franklin limestone were 

 seen at one place in Franklin township, but elsewhere it is concealed. 

 The Blacksville limestone, so prominent in most of the Dunkard area, 

 has almost disappeared, being represented by a few streaks. The Waynes- 

 burg sandstone is somewhat indefinite and at best is only a sandy shale ; 

 the Cassville shale has limestone in the shaft at Washington, which is 

 the most easterly appearance of the limestone. The interval from Upper 

 Washington limestone to the Washington coal bed is 150 to 160 feet, 

 and that from the Washington to the Waynesburg coal bed is 115 to 

 124, decreasing westwardly. 



The conditions are very similar southward in Morris, Amwell, and 

 West Bethlehem along the southern border of the county, except in 

 increase of the intervals, that from the Upper Washington to the Wash- 

 ington coal becoming 180 and 190 as one approaches the Greene county 

 line, and that from the Washington to the Waynesburg becoming 165 

 feet. The Boyd, Canton, and Jollytown coals are present, as are also 

 the Ten-mile and Franklin limestones. A massive sandstone, 250 feet 

 above the Upper Washington and very near the place of the Nineveh 

 sandstone, remains in West Bethlehem as a rock city on the Hillsborough 

 knob.* 



Buffalo, Donegal, East and West Finley townships form the south- 

 west corner of Washington county. In the former two, at the north, the 

 exposed section reached to 76 feet above the Upper Washington limestone. 

 The Ten-mile limestone is 6 feet thick 20 feet above the Upper Wash- 

 ington and 40 feet below another whose relations are very uncertain. 

 Coal was seen at the Boyd horizon in one exposure, and a blossom at 10 

 feet above the Ten-mile may be taken as representing the Pursley horizon. 

 The Canton coal bed, 20 feet below the Upper Washington, was seen 

 in both townships, very thin and 6 inches to 2 feet above the Franklin 

 limestone, which is 1 foot 6 inches to 7 feet thick. A thin coal bed at 

 a little way below the Middle Washington limestone seems to mark the 

 Washington A horizon, but no trace of the Jollytown coal bed was seen. 

 The Washington coal bed is 6 inches to 9 feet thick and for the most 

 part of little worth. Of all the limestones, only the Colvin is absent. 



* J. J. Stevenson: (K), 181, 184, 185, 188, 190, 241-244, 247, 248, 250, 251, 252. 

 I. C. White: (K), pp. 184, 187, 201. 



