SIG GEOLOGY OF OHIO, 
The cherty limestone over the upper coal is traceable several miles 
along the banks of Owl Creek into Knox county. It abounds in fossils, 
which include nearly all the species found in the famous locality on 
Flint Ridge, near Newark. The lithological character of the rock is the 
same, a blue, earthy, sometimes cherty limestone, weathering light 
brown. The horizon of the two localities is doubtless the same. The 
base of the section is three hundred feet above Lake Erie. 
Jefferson.—The north half of this township is in strata probably too 
low for any of the workable coal-beds except No. 1, which may be looked 
for with good prospect of success, as it is worked just over the line in 
Monroe, as already described. On the south side of the township, Coal 
No. 8a has been opened upon several farms, and being found of large 
size and of cannel character, rich in oil, large preparations were made 
to work it for the supply of oil distilleries, when the great develop- 
ments of the petroleum wells put a stop to the business. On the farm 
of John Taylor (west side of Simmons’ Creek) the bed is opened about 
fifty feet below the top of the hill. It is about five feet thick, sound can- 
nel coal, with a little pyrites scattered through it. The coal abounds 
with impressions of coal-plants, and in the shaly blocks from the roof 
are remarkably fine specimens of Stigmariz with lateral rootlets. On 
the other side of the same hill (to the west) is Lyman’s opening in the 
same bed. The roof is here exposed, and consists, next the coal, of blue 
limestone six inches, over this, chert eighteen inches, and limestone at 
top, making in all over three feet. The coal-bed is full six feet thick. 
Sharpless’ mine, across the valley, in Bedford township, belongs to this 
group. The gray limestone is found scattered near the top of the hill 
above Lyman’s opening, but the coal-bed under it is not opened. Its 
outcrop is observed in the road toward Newcastle, overlaid by a thick 
bed of shale. Chert is very abundant, associated with both the lime- 
stone beds, and also at higher levels than the gray limestone. Descend- 
- ing the hill toward the Little Mohawk, the gray limestone is seen not 
far below the summit, about four feet thick, with coal-smut below, and 
shale-beds containing kidney ore above it. The coal-bed is opened on 
the farm of James Moore, Sen., close by this outcrop, and was worked for 
oil, the coal yielding forty gallons to the ton. The bed is seven feet 
thick, the lower five feet cannel and the upper two feet bright coal, over- 
laid by gray limestone and chert. On the opposite side of the road the 
same bed was worked by Wm. Gibbons. The descent from this point 
to the bridge over the Little Mohawk at Jericho, about a quarter 
of a mile to the west, is one hundred and eighty feet by barometer. 
This should reach into the Waverly shales. There are no exposures of 
