THE LOWER COAL MEASURES. 173 
no large acreage is left in any continuous body, but exploration is still 
going on in the small way, and it is occasionally rewarded by the dis- 
covery of moderate sized basins that had heretofore escaped notice. 
Aubrey and Dolling opened in 1882 one of these basins in the north- 
western part of the township where it was generally supposed that the 
coal has been already worked entirely out. | 
The Applegate Coal Slope (Shenango mine), near the line of Hub- 
bard and Brookfield, and extending into both townships, formerly 
operated by the Mahoning Coal Company ; the Love Coal Bank, operated 
by Andrews and Hitchcock; the Burnett Coal Slope, operated by the 
same firm, covered one of the noblest bodies of coal of the entire field, 
but it is now exhausted. 
The Matthews Coal Shaft, operated by Jacobs and Sons, and the 
California Slope, are the only mines now worked in Hubbard township. 
The latter is a newly discovered body of small acreage. It will last 
but a few years at most. 
The area of workable coal left in Brookfield township is somewhat 
larger. A considerable part of the township is below the coal horizon, 
and most of the sections that are high enough have been pretty 
thoroughly tested. The Curtis and Boyce Coal Company has made 
quite thorough work with the coal in the eastern ridge, and on the 
southern side of the township the Brookfield Tunnel Company has mined 
out a very large territory. This company has still before it coal enough 
to furnish 10 or 12 years’ supply. 
The Cleveland Shaft, operated by the Brookfield Tunnel Coal 
Company, is near its margin of coal, so far as the territory has been 
tested. Two other mines, drift banks, viz., the Chew Bank, and the 
“Brass and Wire” Bank, complete the list of mines now in operation. 
A ridge extending northward through the center of the township, 
is high enough to hold the coal, and has not been thoroughly tested 
as yet. 
All large mining operations have been for some time suspended in 
Vienna township, but a deposit of considerable value is now undergoing 
development by Morris, Sampson & Co., at a point about 1 mile south- 
east of Vienna Center. The coal of this township has never had as 
good a name as the coal to the south and east, but the new mine, Shady- 
_side, has at present an excellent reputation. The coal is counted of the 
highest quality. | 
