Art. VIII.] Davis, Drainage Modification. 173 
ter currents sent up the old valley checked the flow of the Moxa- 
hala river then coursing through it. In the backed up waters 
the great accumulations of gravel now filling the valley were 
deposited. Too strong a current was sent up the old valley for 
the Moxahala river to stem. As a result the Moxahala broke 
over the divide existing between the south fork and the Mus- 
kingum river, and finally cut its course down to the present 
level. 
After the recession of the ice sheet these cols remained in 
u.se, having been worn down to a sufficient depth. 
These conclusions in reference to Jonathan creek are in 
harmony with the restored preglacial drainage of the neighbor- 
ing territory and thus aid in establishing the truthfulness of 
those restorations. 
The south fork of Jonathan creek in its northern direction 
to Zanesville conforms to the north flowing Muskingum. The 
west fork of Jonathan creek, from the col, westward to the 
Licking reservoir, formed a lateral tributary to the preglacial 
Muskingum in its course from Dresden Junction through the 
old abandoned valley to Newark and thence southwestward past 
the Licking reservoir on its way to the Scioto basin. 
With these references it is hoped that one more item, 
though small it may be, is added to the knowledge of the re- 
stored pieglacial drainage of Ohio. 
