46 Rock Strata of the Cuyahoga. 
_ in the valley occupying the intermediate space, as they are buried 
deep under the coal series, fragments of which are brought up from 
great depths in boring for salt water, on the Muskingum and Ohio, 
near the centre of the valley ; leading us to infer that the same force 
from below, which raised the mountain ranges, also raised up the ta- 
ble Jands between Lake Erie and the waters which run into the Ohio. 
The following section (Fig. 11.) will show the order of stratifica- 
tion from the surface of the highest land in the vicinity of the falls, 
Ph 
== Bed of the Cuyahoga. 
