790 GEOLOGY OF OHIO. 
coal is good. It mines large and bears handling well. It is mined by 
blasting from the solid. , : 
The roof is for the most part slate, anda streak of bone often 
covers the coal. A thin stratum of sandstone sometimes lies near the 
coal, and at the outcrop it is very flinty and hard. 
The floor of the coal is a black slate, 5 to 8 inches thick, under 
~which the gannister-like bed, already reported, is found. The bottom 
is very uneven. At one point, there is 21 feet fall in 25 yards. 
There is more visible sulphur in the lowermost foot of the seam 
than elsewhere. 
The market of the coal is mainly on Lake Erie, which it reaches 
by the Cleveland, Lorain and Wheeling road, the eutput being about 
250 tons per day. It is valued as a domestic fuel as well as for steam 
production. 
At a shaft in the southwest part of the basin, the rider seam, No. 
2 of Newberry, is found, 24 feet thick, and 63 feet above the main 
coal. It is 12 feet below the surface and has no rock cover. 
This mine was filled with colored miners from Virginia at the time 
of a strike over the introduction of screens, 3 or 4 years since, and 
they are still retained. 
The Woods Mine is located on section 15. It was formerly owned 
by the Silver Creek Company, but is now in the possession of Bay- 
singer & Huffman, of Doylestown. It is an old mine for this district, 
having been open for 40 or more years. As many as 50 acres have 
been already mined out. It is entered by a drift entry, the coal lying 
50 to 60 feet above the railroad. 
The coal is of good quality, mining large and bearing transpor- 
tation well, as a rule, but the lower part of the seam is sometimes a 
little short-grained and curly. It ranges in thickness from 3% to 9 
feet, and the average will exceed rather than fall below 43 feet; of the 
maximum thickness, 9 feet, not more than 4 acre is claimed. There is 
very little that is 7 feet thick. The mine is now taking thinner coal 
than in its earlier days. A little “bone” is sometimes found at the 
top of the seam. This phase is said to be connected with a sandstone 
roof. Generally, a black slate, 2 to 15 feet in thickness, is the im- 
mediate cover of the coal, over which is the usual sandstone stratum, 
which in one drill hole was 30 feet thick, but in some places, a shale 
comes down to the coal. 
