906 GEOLOGY OF OHIO. 
On the Studer farm, the coal has been quite largely mined for neigh- 
borhood use in years past. The seam yields 42 inches of good coal in 
an undivided bed, overlain by 8 inches of bone coal. Nodules of 
pyrites are distributed through it. The coal burns with a strong heat,. 
but with less flame than the coal above it. It is hard and bright, and 
finds ready sale when mined. The Dumolt coal is not as thick as the 
Studer coal.. It is not probable that these developments will ever 
warrant any considerable mining enterprises, as the seam shows itself 
unsteady in this immediate neighborhood, running down to 10 inches,. 
or even less. he 
The Middle Kittanning coal], which happens to be known here as. 
the ‘‘ middle vein”, is, as usual, regular and persistent. 
An approximate estimate of its acreage in the township was made,, 
by taking the aggregate of what the landowners claim. Their figures. 
give 2280 acres, an area which is probably not greatly in excess of the 
facts. It occupies Sections 13, 14, 23, 24, 25, 26, 27, 34, 35 and 36,. 
in part or in whole. The seam shows its northern phases throughout 
most of the township, in all respects, being but 3 feet thick, being 
overlain with 1 to 2 feet of bone coal, being moderately cementing, 
burning with a purple ash and being high in sulphur. In parts of the 
township, however, change begins to show in these features. The coal 
becomes more open-burning and the color of the ash is less pronounced. 
The chief mines in this seam are in Sections 13, 24, 25, 26,35 and 
36. A number of country banks are kept open here for the township 
supply. The coal is uniformly 3 feet thick, and everywhere carries the 
“bone” above it, but in Sections 13 and 24 it becomes somewhat slaty 
and inferior in quality, evidently marking the outer margin of the 
original swamp. 
The seam will yield in portions of this area a fair basis for shipping 
mines, as has already been demonstrated in the Bristol and McCune- 
ville mines, whenever lines of transportation are provided. 
The coals of the northern portion of Monday Creek township, viz., 
in Sections 1, 2, 3 and 4, agree in all respects with the coals already 
described from Jackson township. In quality and thickness and 
structure, the Middle Kittanning coal is identical with the phases of 
the seam last described. It is here known as the “three-foot seam”, 
while the Lower Kittanning is styled the ‘ two-fout seam”’. 
The general section of this neighborhood is well represented in a 
