THE PREGLACIAL DRAINAGE OF OHIO. 67 



The old supposition was that they went out by the Chip- 

 pewa Creek channel to the Tuscarawas and thence to the Ohio 

 River. But a later conception sent them by Warwick and New 

 Portage to the Cuyahoga River and thence to the great Lake 

 Erie channel, but in both of these the reckoning was made with- 

 out considering the existence of the axial channel described, or 

 the force of the Orrville Lake. 



My first objection to them is that I have found another 

 way through which the waters could proceed, and that the Chip- 

 pewa channel passes over Carboniferous conglomerate that was 

 once covered with coal. In other words, it shows a breach in 

 coal hills that is not consistent with their formation, but which 

 is in accordance with the idea presented above, that the dam- 

 med up waters of the Orrville Lake selected the point of least 

 resistance to force their way through their prison walls, viz., the 

 V-shaped fissure still recognizable in the coai hills on the sides 

 of this channel. In sections 26 and 25 of Chippewa township 

 coal mines are operated less than a mile apart with the Chip- 

 pewa Creek channel between them, making the strait too narrow 

 for the volume of water to pass. It would be like passing a two- 

 inch ball through an inch augur-hole. But as it is not the out- 

 let we are contending for, but only for the general trend of the 

 main channel between the Waverly and Carboniferous, and its 

 tributaries from the hills of widely separated geologic periods. 

 I will wait for further developments before I will change my 

 present thinking, that these waters went from the Orrville Lake 

 across the Chippewa channel, receiving it as a tributary from 

 section 26, through Chippewa Lake to Rocky River and thence 

 to the great preglacial channel in Lake Erie. 



