188 | GEOLOGY OF OHIO. 
is the purest portion, and in good repute for smithing purposes. No. 9 
contains a band of bone coal, three to four inches thick, which ignites 
with difficulty, and after burning leaves a flaky ash, like that from hick- 
ory wood. Nodules of pyrites are of frequent occurrence in this layer. 
No. 11 makes the hottest fire, but leaves much cinder. 
Directly opposite this opening is one belonging to Mr. Gause, in which 
the section is the same as that already given. The bed here is very badly 
cut out by horsebacks and clay veins. The latter strike the bed at an 
angle of about 50°. The former are so serious as to impair the value of 
the bank. One hundred yards from the mouth a sandstone horseback 
crosses the entry, which replaces not only the coal but also the underly- 
ing rocks to a depth of fifteen feet. Its width, as shown in the entry, is 
twenty yards. A few yards beyond this another occurs, and to ayoid it 
the entry was turned, so that nothing is known respecting its extent. 
Unfortunately for science, though fortunately for themselves, the owners 
of the adjoining banks have not driven their entries in the direction to 
meet these horsebacks, and it is impossible to determine, with any de- 
gree of accuracy, the extent or direction of the disturbances. The re- 
moval must have occurred during or immediately before the deposition of 
the sandstone above, as the horsebacks are of a constitution similar to 
that of the sandstone stratum. In the neighboring bank, belonging to 
Mr. Staley, the coal is from five to six feet thick. Near Carrollton the in- 
terval between this bed and the Crinoidal limestone is only one hundred 
and forty feet. In Tuscarawas and Guernsey counties it is two hundred 
and forty to two hundred and sixty feet. 
Midway between Carrollton and Cannonsburg, on the border of Monroe 
township, Coal No. 6 is mined by Mr. W. Scott, at whose opening the fol- 
lowing section is seen: 
1 a ON 
1A Mitta! te: (eee en Sees ee ee RS More eee ae oe ee a eaoc 3 0 
Qe Coa cee sence k x wis Sos Sees eae as A Re li: SAE NO 9 ev gn pe el i 6 
Day PALLIM OY yak ices Secs tek crt erate rete iepak ctarepen alton, Popsteraes sa anal sent Woecne Vaile Ne 0 >} 
AN COON a ax oe OA Read tides SRS ae ee Ree Ee gre pale ie Mea mee peguinete ) 8 
BEF PATTING seater getstere retbrere ears te fetta Meee re We RE eee ay a i pw ee 0 4 
Gh Coal. ek ec ee eee Dk Ca hE ee ie Ie piccp nem ae ed ee a ae gO a 10 
7. Parting 3 0 1-3 
Big (Coal 2 4o5)b2 See ee SS Ae Se FE IR te deen Ho LO) 
Dio tal sisi nek pis A ie Ae ah a a NN 5 1 
In the entry the coal occasionally becomes five feet six inches, and in 
one spot it reaches six feet. Throughout the greater portion of the bed 
little pyrites is visible, and nodules occur only near the bottom, where 
they are comparatively rare. Where exposed to atmospheric influence, 
