1880.] -'--^•^ [Jones. 



lower part of basin by heavy top slate and the unusual size of seam, as 

 above. It is a bright, soft coal, yielding 7% gray ash and somewhat 

 sulphury. It runs from 70 to 90 feet over the Piedmont sandstone, and 

 750 to 800 feet under the Pittsburg seam. 

 10' Clay and ore. 

 2' Sandstone. 

 8' Limestone. 

 12' Sandstone. 

 4' 10" Goal 

 5' Clay. 

 4' Shale. 

 1' Iron ore. 



7' Shale, clay and sandstone. 



5' Clay, pure. Fine clay bed. It is probably much thicker than this 

 within the mountains, and resembles in appearance and quality the 

 Mt. Savage clay bed. (See below.) 

 22' Sandstone. Sometimes found pebbled, as if indicating the approach 

 to the conglomerates. 

 1' 8" Goal. 

 10' Fire-clay. 

 30' Sandstone. Piedmont Sandstone. 



4" Goal. 

 41' Sandstone and shale. 

 11' Sandstone pebbled. 

 2' 6" Goal. 

 12' Shale. 

 38' Sandstone. 



2' 6" Goal. 

 53' Unknown, shaly. 

 38' Sandstone. 

 42' Shale. 

 1' 10" Goal. 

 5' Shale. 

 43' Quartz sandstone. 

 l'to4' Goal. 



8' Clay. Mt. Savage. It is a pure shale clay of great standing power. 

 It thickens to 16 feet at places, and lies in rolls or pockets in a sotter 

 and semi-plastic clay lying under it. It contains but little iron or 

 potash. It has been opened at Williams station, Somerset Co., Pa., 

 and at Ellerslie, Pa., also near Mt. Savage, and is found cropping 

 along the crest of the mountain on each rim of basin. 

 4" Slate. 

 6" Goal. 

 60'* Sandstone conglomerate, with vertical split. 

 15' Shale. 

 55' Sandstone. 

 6" Goal. 



