592 GEOLOGY OF OHIO. 
The following are analyses of the Rock Run coals. 1, Keith’s new 
mine; 2, Muskingum Valley Coal Company, top bend; 3, Muskingum 
Valley Coal Company, bottom bend: 
SHOVES CARMI? 6 Go0G60 add0 ob5d06 BoaoS Go0660 Habe 
TY GOSH LED Re KY MN pee oh Si Ap ane aS ESIC 
Volatilevcombustiblematteros.ococeccecenee onenee 
PRO CVC ALD OMe eit ct ea BC i inter Mn aiueeine Enc ace aa nametie rat 
A 
OA SACs eiSo Ha bod BEE SOO UR OIO5O0 DOOD G6GG00 ba 
100.00 LOOLOOD elon teys lose 
SHI} Obes oo as bec oou soGbbe Goad bdada bNEG00 50G500 SE 2.69 1.74 2.73 
‘Simlyoinmpe Mest i COS sooo oso5nqc0s5eG¢ 660 6660005006 0.€0 OLGo wate neieme a oe 
Sulphur forming percentage of coke........-....-. 1.34 D1 Ocaca|eeesaerse ee 
Fixed gas, per pound, cubic feet.............-...- 3.23 3.42 3.35 
ASh .... 20-20 eee ne ee nn wenn een nee eee oe gray. gray. gray. 
Coke......------ 20 --- 0 oo oe enn e enn ew wn nee compact. compact. | compact. 
Near the southern line is John B. Hershman’s coal bank, one mile 
above the bend of Will’s Creek, on the east side and ninety feet above 
its level. The bed is four and one-half to five feet thick and yields very 
sound and black coal of apparently excellent quality. Near the bottom 
is a thin seam of sulphury shale, which can be easily separated. It has 
a thin roof of shale, and over this is sandstone. Below the coal is sand- 
stone thirty feet thick, and under this a large bed of shale. 
Tinton.—Tnhis is the next east from Franklin, and the south-eastern 
township of the county. Kxcept in the wide bottoms of Will’s Creek, 
the greater part of the surface is above the plane of Coal No.6. The 
road from Coshocton comes down to it near the north-west corner of the 
township, six miles from Coshocton, where an old opening is seen by the 
run, to the right-hand side of the road. At the school-house, near by, 
and below the level of the coal, is a display of iron ore in oxydized blocks, 
that might be supposed to indicate a considerable quantity, but these 
outcrops are little to be depended upon. 
The road continues to descend toward the east, following the valley of 
the run, and in the bed of this, two miles before reaching Jacobsport, 
the blue limestone is seen well exposed over three feet thick. At 
Jacobsport, over the bridge across Will’s Creek, the same rock lies ten 
or fifteen feet above the creek, in a bed measuring four feet ten inches 
thick. Great blocks of it, of rectangular shape, and weighing many tons, 
have fallen down and lie bv the side of the creek. The rock abounds 
in fossil shells, which, however, are obtained with difficulty. A little 
