864 : GEOLOGY OF OHIO. 
burns down to a fine powder, with very small tendency to form 
clinker. 
Franklin Township, lying just east of Virginia, has in old times 
furnished some coal to the shipping trade. The most extensive work- 
ings were at Rock Run, on the northern edge of the township. Con- 
siderable territory has been worked out at this point, and the old mines 
were abandoned. Recently, another opening bas been made by Messrs. 
McNeal and Harris; about 20 men are employed, and the coal is 
shipped on the Pan Handle Railway. The broad valley of the 
Muskingum has cut out the coal from a considerable part of the town- 
ship. A few small country banks are open at Frew’s Mills. 
Tuscarawas Township, just north of Franklin and east of Jackson, 
and containing the village of Coshocton, has furnished more coal to the 
outside markets than all the rest of the county. In it were located 
the old Pen Twyn mines, Shoemaker’s bank, Beech Hollow mines and 
the Union mines. Beside these large workings, now deserted, the Home 
mines and the Morgan Run Coal Co.’s Works are still in operation. 
The Union bank, 2 miles south of Coshocton and on the first tier 
of hills fronting the river, has been last abandoned. ‘The coal is very 
badly troubled in this bank ; its height runs from 3/ 7” to 5! 9”, with 
4’ 10”, on an average of 15 measurements. A series of rolls or 
‘“ horsebacks” starting, like curved spokes of a wheel from a com- 
mon center, were continually cut by the entries and rooms and made a 
great deal of expensive dead-work. As the working progressed, these 
horsebacks began to be understood, and were finally so worked as 
to cause a minimum of expense. Soon afterwards, the entry-men 
drove into what appeared to be a true “fault,” or slip, in the strata. 
The coal was cut off square and sharp, while the rock beyond was an 
intensely hard fine-grained sandrock, which properly belonged 40 ft. or 
so above that level. Down the sides of the great slip, the triturated 
fragments of coal had been carried for a number. of yards. This fault 
was found to be general, and to extend ina long are between their 
workings and the body of coal beyond it. The company spent much 
money and trouble in trying to pierce it, but gave it up finally and 
abandoned the mine; beyond, lay 200 acres of valuable coal, but it 
cannot be reached, except by piercing the fault. | 
The work was prosecutéd day and night for a long time, but with- 
out success; the rock was very hard and could not be attacked to good 
