CHAPTEHR XII. 
THE COAL SEAMS OF THE LOWER COAL MEASURES 
OF OHIO—ContTINvU_ED. 
THE MASSILLON COAL FIELD. 
By Epwarp OrTon. 
Under the designation of the Massillon Coal Field, the most im- 
portant mines of the Sharon coal (Coal No. 1), at present known in the 
State, will be considered. The field occupies adjacent portions of 
Summit, Medina, Wayne, and Stark counties. It extends from Tall- 
madge, Akron, and Wadsworth, on the north, nearly to the south line 
of Stark county. The coal of this seam is mined, or has been mined in 
the townships of Tallmadge, Springfield, Coventry, Franklin, Norton, 
and Copley, of Summit county; in Wadsworth township, of Medina 
county ; in Chippewa and Baughman townships, of Wayne county ; and 
in Lawrence, Jackson, Tuscarawas, Perry, Sugar Creek, and Bethlehem 
townships, of Stark county. A line can be drawn connecting the several 
mines that are, respectively, furthest north, east, south, and west within 
the area where this coal has been worked, and the space thus enclosed 
might be called a map of the Massillon Coal Field, but such a map 
would not answer for all of the purposes for which maps are made. 
Drill-holes and trial pits, sunk afterwards, would be quite likely to 
show basins of the coal in question, outside of the boundary, and they 
would not, by any means, be certain to show its presence at all points 
within the line. The reasons for this inadequacy are as follows: 
Much of the territory is drift-covered, and sharp boundaries of the 
underlying geological formations cannot be drawn. In the next place, 
most of the coal is below drainage. Finally and chiefly, the original 
deposits of the coal were exceedingly irregular, never covering but a 
small fraction of the area included in such a boundary line. In the 
accompanying map, which is entitled Map of the Massillon Coal Field, the 
