COAL MINES OF NORTHERN PERRY COUNTY. 887 
They are occasionally mined in a very small way by stripping in 
favorable locations. | 
The Clarion coal that has long been missed from the series in 
coming westward is found again in Perry county, in a considerable 
number of sections. It lies 15 or 20 feet above the Putnam Hill lime- 
stone, and is locally recognized as No. 4a. It is not known to reach 2 
feet in thickness at any point. One anda half miles N. W. of New 
Lexington it is found 22 inches thick. The quality of what coal there 
is, is good. 
THE Kirranninc Coats (Nos. 5 and 6). 
These two seams constitute almost the entire reliance of that part 
of Perry county now under consideration. They are 20 to 30 feet 
apart. The upper seam is, as usual, steady and uniform both in quality 
and in distribution; the lower, though much less regular, finds in this 
field one of its best developments in the State, and attains great economic 
value. These cnals have both been mined within the corporate limits of 
New Lexington, the county seat, and are accordingly known as the 
Upper and Lower New Lexington coals. These names have been 
applied quite widely to the coals in our geological literature, and are in 
reality among the commonest designations of the Kittanning coals in 
Ohio. 
These seams retain the same general characteristics by which they 
are marked in Muskingum county. 
The Middle Kittanning Coal (No. 6). 
The upper seam ranges in thickness from 3 to 4 feet of merchantable 
coal. Above this portion of the seam, 10 to 20 inches of impure coal, 
known as bone coal, are invariably found. This bone coal burns 
readily, but yields an excessive quality of ash, and is also sometimes 
high in sulphur. An analysis of a single set of samples, made for the 
survey by Professor Lord, yields the results given below. The samples 
were taken from the mine of J. F. Sheerhan, at Ferrara, on the Ohio 
Central Railroad : 
WAOHETIIRS). + Soctesoa lon bOdh GABBA BS oc stee SUA SESE OS cre GE DH Ve) a 4.52 
Wrolatilexcomibustilolesmrattenms.ccacsecccscces esters cdcccheccs sa ccec sun ccsca eeberseese 86.43: 
bie CECATD OM atecaiicn hose doce een eee anti « RRR ee oad Aerts Sed Bn 37.39" 
ANGI, .coudé Bbobo odes BubcCb OCs DORR ESOS CORBIS I eee Cea rors 0 a NU nen ae ee 21.66: 
TCO GU ea tebcies otal ctetiab ds odnaacgeledebivedeseus 100.00 
