GLACIAL EROSION IN THE FINGER LAKE REGION 21 



To account for the facts briefly outlined in this paper by reju- 

 venation seems utterly impossible. This hypothesis will not explain 

 the hanging gorges, nor the discordant U-shaped hanging valleys. 

 Formation of the lake valleys entirely by Wisconsin ice-erosion 

 is also out of the question. But the striking resemblance of the 

 topography to that of regions of known ice-erosion seems to demand 

 origin by glacial erosion; and, in spite of the opposing evidence 

 from a remnant of residual decay, and of other objections of less 

 importance, it is believed that such an origin must be assigned to 

 these valleys, and that the apparent objection to such origin is 

 dependent upon some local condition which permitted residually 

 decayed rock to remain, while elsewhere in the valleys there was 

 profound ice-erosion. 



