Art. IVI Carney, The Scioto Illiiioian Lobe. 133 



It has been est<il)lislii(l that iee did not enter I'errv lownshi]) 

 (Fig. 2) from the north or west.' and that tlie townsliip was not 

 glaciated save for tlie presenee of a lateral toiiL;ne reaehin^- north- 

 ward from tlic valley lohe that extended eastward into Alnskinoum 

 County ( h ig. 3).' Less than one-half of the next townshi]) west. 

 Mary .Vnn, was ccu'ered hy iee; this iee had a very irregular fi-out. 

 The conspicuous drift knolls at W'ilkins Run are alluded to hv 

 Wright." and by Leverett.' One of the most typical vallev trains 

 of this region was huilt into the mature valley southwest of W'ilkins 

 Run. 



The southeast corner of Eden Township was not glaciated : hut 

 the front of the ice has not been traced in detail through this town- 

 shi]). nor into Fallsburg. A small jiortion of the northeast corner 

 of Madison Township was not covered by ice. The outline of the 

 drift in Hanover Township is considered in the following section. 

 Southward into Hopewell Township the margin of the iee has 

 been traced in detail for only a short distance. 



\-AL[,EV DEPENDENCIES. 



At W'ilkins Run. — A tongue of ice about one and seven-tenths 

 miles long reached eastward from W'ilkins Run. This village lies 

 at one side of a mature valley which once embraced in its drain- 

 age the area east and north, the region now constituting the head- 

 waters of the Rocky I'ork ; this defunct valley opened westward 



' F. Carney. Joe. eit.. j). 124. 



- Siiu-e the .ttovernment has uot issued a nia]) cf tliis area, tlie writer, an- 

 preeiating the difficulty that one not aequainted with the res'ion would have in 

 visualizing the topography described in the paper, lias attempted to represent in 

 contours the relief of tlie section almut Hanover. No traverse worli was done : 

 county surveyor's maps were used for the highways and liorizontal distances, an 

 attempt being made to correct the grosser errors. It is felt, however, that the 

 altitudes in reference to the arbitrary liench mark selected have been estab- 

 lished witli greater accuracy. For this purpose two aneroids were used : these 

 Instruments are of tlie same make., and for over a year have shown the same 

 variation when together. During the progress of the fieldwork the aneroids 

 were set the same at the bench each morning : the one kept at the bench was 

 read every thirty minutes. The time at which readings were made on the other 

 instrument in the field was recorded ; the w-atches were also set alike each 

 morning. At night the field readings were corrected for the variations shown 

 by the bench aneroid. Many critical points were checked several times. 



^ The GlacUil HuinKlini; of Ohio. ( Ji'oln-ical Survey of oliio, Vol. V (1SS4), 

 p. 755. 



* Loo. at., p. 260. 



