CEEAIP Wi) DOVE 
THE COAL SEAMS OF THE LOWER COAL MEASURES 
OF OHIO—ConrtTINvUED. ~ 
Mines oF MuUskINGUM AND OF LicKING COUNTIES, AND OF THE 
NorTHERN HALF or PERRY CouNTY. 
By Epwarp OrToN. 
On map No. 5, accompanying the present volume, and which 
covers Muskingum and parts of Licking and Perry counties, the 
boundary of the coal measures is copied from Newberry’s geological 
map, and, in addition to this, the areas of the Kittanning coals lying 
above their final descent below drainage are represented. As these 
coals are by far the most important sources of fuel supply to the district 
and in a large part of it the sole supply, no question will be raised as 
to the propriety of selecting them for special delineation. The boundaries 
were not run with the accuracy that would be demanded in buying or 
selling the coal lands of a farm or section, but they will be found a safe 
guide for all general work, such as the laying out of railroad branches 
and.the locations of mines requiring an expensive plant. From the 
map it can be seen where the large bodies of the coals of this horizon 
are due, and where they can be attacked at best advantage. 
In addition to the Kittanning horizon in Muskingum and Perry, 
the Ferriferous horizon of Licking county, which is practically identical 
with the former, is represented in the well-known Flint Ridge, alike 
interesting geologically and archeologically. | 
Coat MingEs oF Muskingum CouNTY. 
Muskingum county, as pointed out by Andrews, has the greatest 
vertical scale of any Coal Measure county in Ohio. Its lowest rocks are 
in the Logan division of the Waverly group (Sub-Carboniferous), while 
