COAL SEAMS OF HOLMES COUNTY. 825 
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This gives a total thickness of coal of 44 inches. 
A mile north of this locality the seam was opened, but not pursued, 
on A. A. Taylor’s farm (Fig. VI), and reported from 33 to 6 feet in thick- 
ness. The larger figures could not hold over any great area. 
At Washington Taylor’s, in western Monroe, the same coal is mined. 
It is here 32 inches thick, the upper bench being 21 inches, the lower, 
8 inches, with a 3-inch clay parting between. 
The seam may be expected to hold a workable thickness over quite 
an area in western Monroe and eastern Knox, reaching southwards 
towards Black Creek or beyond. In this field, however, the thickness 
of the partings is a drawback, as observed by Mr. Read in Vol. III. 
In central Mechanic township this seam has been prospected near 
Daniel Uhl’s, by Levi Shaffer, where the seam, shown in Fig. LV, con- 
sists of two benches, the upper bench being 2 feet of cannel, and the 
lower 15 inches of bituminous coal, with a formidable parting of 1 foot — 
of slate between them. ‘ 
In south-western Walnut Creek, Jacob Mullett has prospected this 
seam, where it is 3 feet thick. 
This seam probably possesses a larger acreage of accessible coal 
than any other in the county. It is often so deficient in thickness, 
however, that it is difficult to say whether it, or the Sharon coal, is 
entitled to rank next after the Middle Kittanning (No. 6) in value. 
Upper Mercer Coal (No. 3a.) 
In Killbuck township this seam is a cannel, locally thickened to 7 
or 9 feet, as at the old Strawbridge mine (Fig. VII) and on the Cary and 
Urmson property on the eastern line of the township. A fair thick- 
ness of excellent cannel can doubtless be mined in both these localities 
whenever there is any call for it. 
In Monroe and Knox townships this is called the “flint vein”. 
On A. A. Taylor’s (Fig. VII) it was 23 to 34 feet thick, in one bench, 
