G. J). Hubbard — Ancient Finger LaTces in Ohio. 243 



ice probably closed it at the north. The floor is now of strat- 

 ified clay and tine sand with a heavy muck layer over most of it. 

 At several points in the valley are inconspicuous areas of water- 

 laid or worked-over moraine, and along the margins may be 

 found, at several points, well defined beach sand. These shore 

 lines are at a level (U. S. G. S.) of 765 feet at Blachleyville 

 and Funk, and the lake bottom is 20 feet lower, but descending 

 very gently northwestward. 



The plain . representing the lake bottom varies in width 

 from one-quarter to one and one-half miles in the southern 

 part, but widens in the north to about two miles. This plain 

 delivers its drainage northward, hence persisted until the ice 

 melted away. Its northern end has not been seen, but the 

 plain was followed five miles and undoubtedly continues north- 

 westward, possibly connecting with one or both of the " water 

 plains " of Read* in northwestern Ashland county. 



It is probable that other finger lakes equally well marked 

 may yet be found where the glacier invaded the hilly part of 

 Ohio. 



Ohio State University. 



* Geology of Ohio, vol. iii, pp. 519-521. 



