‘966 GEOLOGY OF OHIO. 
The Monday Creek Furnace mine belongs to the same portion of 
the field, as does also the well-known Cawthorn farm. The coal has 
been mined on a small scale on the last-named property, and maintains 
the same high character that marks the rest of the Monday Creek 
coal. 
The next mines to be reached are those of the Akron Iron Com- 
pany, now Nos. 21, 23, 25 and 27 of the Columbus and Hocking Coal 
and Iron Company. ‘The first three are drift mines; No. 27 is a shaft 
mine. No. 25 embraces in reality two mines, the Upper Freeport seam 
being mined directly above the great seam, the coal being delivered by 
the same chute. 
The structure of the seam in the Furnace Mine, No. 21, is shown 
in the following figure: 
FLEURE CX) 
STRUCTURE OF COAL AT AKRON FURNACE 
MINE N22] 
OO is tee aye ee cen ee 2 
Coal, Cannel. (wncerkain)—- 
faYou) Citta aaa AS Ser 8) WB ay ah 
Second Slate... eS 
Co ab I I yg = % 
First Olate ms). 2 0) eee 
Chal ? 
This figure fairly represents the seam throughout this immediate 
district, though the top coal is sometimes found a little thicker than is 
_ here shown, but no great value is added by its increased volume. 
About 6 feet of clean coal are found here, and of this the two lower 
benches form nearly two-thirds. It is their relative predominance in 
the output that gives to this coal its high character. Its composition 
is shown in the appended table. 
As was said of the last analysis reported, viz., that of the Carbon 
Hill mine, there is but very little better coal in Ohio than this. The 
close agreement of these analyses and that of the coal of J.S. Doe & 
Co.’s mine, given on page 957, is to be observed. The last-named 
mine belongs in reality to the same tract with the former. 
