BITUMINOUS COAL STRATA. 249 
Section of the Coal Strata on Kenawha River, Ohio. 
By Dr. Hildreth. 
Fig. 45. 
551ig 
1. Sandstone — coarse-grained, 
containing fossil trees. 
2. Argillaceous iron ore — 1 foot 
thick. 
3. Slate — silicious, used by In- 
dians for arrow-heads. 
4. Coal — bituminous, 4 ft. thick. 
5. Sandstone — coarse, 150 feet 
thick. 
6. Coal — bituminous, 4 ft. thick. 
7. Sandstone — argillaceous, con- 
taining an abundance of 
vegetable impressions, 200 
feet thick. 
8. Coal — 20 inches thick. 
9. Shale — ^bituminous and slaty, 
with sand, 40 feet thick. 
10. Coal— 6 feet thick. 
11. Sandstone rock — compact, 60 
feet thick. 
12. Bed of the Kenawha river. 
