SOME INSTANCES OF MODERATE GLACIAL EROSION 173 



continental glacier was very limited. More facts are necessary before 

 the exact efficiency of the ice as a sculpturing agent can be deter- 

 mined, or the reasons why it erodes little in one place and apparently 

 a great deal in another. All that is claimed for this paper is that 

 it is a small contribution toward the accumulation of facts necessary 

 for these determinations. 



