1006 GEOLOGY OF OHIO. 
found entirely bedded in the coal, but more occur in the shales imme- 
diately above the coal, but so close that they come down when the coal 
is taken. Mention has already been made of the large boulder found 
in the Manly mine at Shawnee, immediately above the second slate. 
This specimen is also a metamorphic sandstone or quartzite. 
Boulders of the same sort are also found in the Carbondale coal. 
They are not known to occur in any other Ohio seam but the Middle 
Kittanning. This anomalous characteristic comes in to re-enforce the 
disputed identity of the Nelsonville and Carbondale coals. 
In connection with this mine, another seam is worked, as has been 
indicated on a previous page.- This is the only point south of Stark 
county where the Brookville coal, Newberry’s original No. 4, is worked 
in a shipping mine. The seam has already been described as it is found 
in Vinton county. In volume and general structure, the Zaleski mine 
agrees fairly well with the Deming coal, figured on page 998. The 
structure of the Zaleski Company’s seam is as follows: 
FiLGURE CRA VA 
STRUCTURE OF BROOKVILLE COAL 
(N24) AT ZALESKI MINE 
Cond pabruiensaiaalalan : 
SAule > parLere i Y ; 
\ 
Cloal.meain bench --- i 
N 
| Wate clay. __-_.. 
Sulphur hand. 
Coal sometimes found 
= The coal is not mined below the white clay parting, and, in fact, it 
is not often that any coal is found below. 
