980 : GEOLOGY OF OHIO. 
quality of the coal thus far produced. Being derived largely from the 
two lower benches, it shows itself a strong and excellent fuel. 
Hamley’s Run mine is located in Section 32, Dover township. It 
is owned by H. C. Will & Co. The coal here lies about 60 feet below 
the surface, and is reached by a shaft. In thickness it will average 
about 5 feet. It suffers considerably from the descent of the sandstone, 
as does all of the coal of this part of the field. Clay veins are not 
found here, all of the trouble coming from the roof. In places the coal 
is cut away to below the second bench, but this happens rarely. The 
erosion generally terminated before the second slate was reached. 
The supplementary seam, as shown in this mine, has a thickness of 
14 inches, the lower 6 inches being a bone coal, which makes the roof 
of the rooms in which the coal is normal. Above the bone there is 
an 8-inch seam of a coarse and unmarketable coal. , 
A sulphur band, 1 to 2 inches thick, lies at the bottom of the seam 
in some parts of the mine. The division of. the seam is as follows: 
Roof coal—Rideriseam= Notitakeneecs-ce-ceseeccsekcee eee teeta eee ee 8 inches. 
Bone-—Roofk: of YOOMBYL ee: .ccscsseeenee aes becoses den toatne ce snons 6 oy 
POP DENCH sc. .e. cescecslecised cwacaccisgdeds qecccegesecsenecsesstocreusuesine mcse renter 24 ue 
Lower 6 inches, rejected, soft, second slate................... 4 af 
IMG ATS DENCH ct sec ccendcaes onceavcsdeessseccdcesienssesutademin osememeacente ects 24 3 
Birst Slate ricer ctvse sciclnese te sien ibslee es sock cs velos once deoeeeaemec ten aaa 1 sf 
Tower DON Chl es.aa ss teeaas ogaciessecwarscbiek sale weaeasitenns eh oweneaeesieeseeeee 10 
SHOU Vo) ob UE LOX WAC! LECH YENI TE 1 65450600000000000000000008000000000 800000000 2 cf 
Fire-clay. 
The mine is equipped to send out about 8 to 10 cars per day. The 
C. H. V. & T. R’y coals its passenger locomotives here. The coal has 
full size and strength, and is well approved in market. 
The mines at Salina and Chauncey, that are worked to supply the 
salt furnaces with which they are connected, agree in all general respec 
with the mine last described so far as the coal is concerned. 
In the south-west corner of York township, and in the adjacent 
portions of Waterloo, Section 31, the extensive workings of the Carbon- 
dale coal are struck. The Marietta and Cincinnati Railroad (now the 
C. W. & B. R’y) has a branch line running into this field, and the 
Carbondale mines have been made to yield a very large production for 
more than 20 years. A number of other mines are also opened in the 
Carbondale coal in the township, particularly at Mineral City and 
King’s Switch. In an earlier portion of this volume, pages 109, 110, 
