RE VIE I VS 



305 



to the readers of the Journal the chief photograph of the paper for 

 comparison with those previously presented in this Journal in the 

 series entitled "Glacial Studies in Greenland." It need only be added 

 that Professor Tarr regards this photograph as presenting a "rugged, 

 angular topography," and offers it with similar photographs in sub- 



FlG. I. Dalrymple Island, an illustration of unglaciated topography. 



stantiation of his claim that topographic contours cannot be trusted 

 as indices of glaciation. As glaciation seems to the reviewer to be 

 expressed with much clearness and definiteness in the contours of the 

 promontory here cited as a proof to the contrary, it seems the fairest 

 mode of review to reproduce the photograph and permit geologists to 

 judge for themselves. For comparison there is added a photographic 

 illustration of Dalrymple Island, which has been previously published 

 in this JOURNAL as an illustration of unglaciated asperities. The 

 reviewer does not see how anyone trained in glacial topography can 

 fail to see glacial modification in the one and the absence of it in the 

 other. The humorous feature of the issue raised in the paper and 

 the outgrowing discussion is that contours of the type illustrated by 

 Professor Tarr's photographs were identified as moderately glaciated 

 by those whose conclusions he seeks to overthrow and his observa- 



