786 GEOLOGY OF OHIO. 
and even of the coal. The rider seam, Newberry’s No. 2, is often 
found 30 to 50 feet above the main seam. It seldom exceeds 18 inches. 
A hill was struck in the main entry, in which the coal rose 15 feet 
above the usual level, and fell as much on the other side. The entry 
was cut down, showing, under the fire-clay, 14 feet of bluish-black 
shales. The fire-clay is plastic at one or two places in the property, but 
it is generally sandy and hard. 
The composition of the coal, as sampled by Professor A. A. Wright, 
is as follows: 
Coal of Excelsior Slope (Lord). 
MOOiSttire ac decicc beech alle Gee oe tre ee ne OED 6.10 
WOVE AUSF} on] ORV OVS} TAD KSI Go0900550000000000000 060000000'500000000 000000 600006 900800006 37.01 
1b: 216 Bice: ol 010) a RPP ie IHR ane oR re ne der AA lina damcaceobNnG 51.00 
WABI ee astatcle dc caiwatewe os pied dawn ere ete tione ehace se Om aee Ta Coe Me GE eA TTS Sonia eect 5.89 
ot 10) 2 0 Pee meer as Se ree Rr SLES 8 Oe A COR OdOn OOcOAG doe eetradEsboubd 100.00 
Rell) ob Ye SeeecBaaRbocacnG5 c6ucb00c0 Je dEdOOde Gudeda0codpodabas6 cd6G00000 060800.000009000c0000000000 1.69 
These figures show the coal a little nearer the usual type of the seam 
than the last two that were given, but it is still seen to be higher in water 
and ash than the best representatives of this field. 
The coal is largely used by the N. Y., P. & O. R’y as a steam 
coal. It supplies in part the Akron rolling-mill, and much of it finds 
market in Cleveland as a domestic coal, and also as a lake coal. It is hard 
and strong, mining large, and carrying considerable “ white cap” in its 
seams. There is apt to be a little bone coal at the bottom and also at the 
top of the seam. 
Royalty averages about 20 cents per ton. It has mainly been paid 
on the weights of the small scales hitherto, but the growing practice is 
to pay only on clean coal. 
The Diamond Coal Works, formerly known as the Humphrey’s 
coal mine, is in Wadsworth township, near the main track of the N. Y., 
P. & O. R’y, and about 1 mile west of the township line. This basin 
originally contained about 150 acres of coal, of which 100 have already 
been mined out. The mine was opened in 1869. It is reached by a 
slope of 225 feet in length, the coal being about 75 feet below the surface. 
The coal has the usual strength and quality, except upon the western 
boundary, where it is soft and rotten. It is mined by powder, with but 
little use of the pick. It has an average thickness of 4 feet, or a trifle 
