756 GEOLOGY OF OHIO. 
“ Fleming’s ” or “ Finley’s Coal.” It is of good quality, and 34 to 4 feet 
in thickness. This has been generally and doubtless accurately identi- 
fied with the Groff and Prentice Coals, and with the upperseam of Nebo 
and Salineville (Coal No.7.) In ali these places it is, like the shaft 
coal of Steubenville, the uppermost of the Lower Coal Group, 7. ¢., it is 
the next highest workable seam to the Pittsburgh Coal, but Fleming’s 
Coal is 50 or 60 feet nearer the Crinoidal. limestone than the shaft coal 
is, and it will be noticed that there are two little coals not far above it, 
the same that appear at Sloan’s Station, and Wills Mine. Coming down 
across the blank space to Wills Creek, we find at the base of the Barren 
Measures, two small coals holding the same relation to a seam. three feet 
thick there found near the creek level, and sixty two feet above the Shaft 
Coal. Going,towards Steubenville, this 3 feet coal is found in the 
Yocum Well but 2 feet thick, and in the “test well” it has disap- 
peared. | 
3d. The chemical composition of the Steubenville Shaft Coal is quite 
unlike that of No. 7, as that appears on Indian Creek, and Wills Creek, 
and Elliottsville—as will be seen from the tables of analyses given at 
the end of the chapter. The Shaft Coal contains only about one-fourth 
as much ash and sulphur as are found in No.7. Hence, as mentioned 
above with our present knowledge of the subject it seems safer to con- 
sider the upper workable coal of Wills Creek as No. 7, and the Shait 
Coal 60 or 70 feet below as Coal No. 6. 
STEUBENVILLE. 
At Steubenville, numerous shafts have been sunk to Coal No. 6, and 
it is extensively worked, both for home consumption and for exportation. 
Several furnaces and rolling mills have been erected here, and these, 
with the other manufactories, attracted by the abundance and excellence 
of the coal, have made Steubenville the industriak center of the county, 
as well as the center of population. 
As has been stated the main coal passes beneath the river, just above 
the mouth of Wills Creek, and it is reached in the series of shafts that 
have been sunk to it along the river bank at a depth which rapidly in- 
creases southward in consequence of the southerly dip of the strata. 
At Cable & Co’s. Shaft, above the mouth of Wills Creek, coal is reached 
at 75 feet from the surface. This is now abandoned, the quality of the 
coal being inferior. Between Wills Greek and the railroad bridge, is 
the shaft of the Jefferson Coal Co., called the Bastard Shaft, which is 80 
feet deep. The coal is here 4 feet in thickness, but is said to be friable 
and sulphurous, and inferior in quality to the coal mined at Steubenville. 
