COSHOCTON COUNTY. 



585 



past. The coal is shipped by canal, and finds a market westward, and to 

 the north-west as far as Sandusky. The following is the succession of 

 strata observed in the run below the coal bed : Seventy-five feet below, 

 is the bottom of a large bed of massive sandstone, not less than thirty 

 feet thick, some layers of it conglomeritic ; under it, shale beds (bluish) 

 about twenty feet thick, with balls and layers of iron-ore ; at ninety- five 

 feet below the coal, is fire-clay, and, under this, blue shale and kidney 

 ore ; at 105 feet, black chert, five feet thick ; and 15 feet below this, black 

 shale and cannel coal, not distinctly divided — altogether, about four feet 

 thick. The lowest of these strata represent the blue limestone, and Coal 

 No. 3 ; and the black chert is the representative of a limestone which is 

 locally found over the next eoal above. 



The following are the analyses of the coal from the mines above men- 

 tioned, No. 1 being from the mines of the Coalport Coal Company; No. 

 2, Prosser's upper bench ; No. 3, Proaser's lower bench : 



Tuscarawas. — The lowest strata in this township, are those n^-ar the 

 blue limestone. It lies near the level of the railroad, and of the canal 

 near the aqueduct to the north of Coshocton. Where the hii;hway 

 crosses Mill creek, in the north- east part of the township, the following 

 section of 165 feet may be observed: At top of the hill, massive sand- 

 stone, extending down about 100 feet ; 125 feet below the top of this sand- 

 stone, gray limestone, four feet thick, with much chert intermixed and 

 overlying a coal bed, the thickness of which is not known, only about 

 fifteen inches seen in the outcrop; thence down to the level of the 

 bridge over Mill Creek (165 feet below the top of the sandstone), is a bed 

 of shales, about thirty-five feet thick. The blue limestone was not seen 

 in place, but a loose piece of it was found below the level of the bridge 

 and of the road. These strata produce no workable coal beds. The 



