PLATE XLJl 



Fig 1. 



Fig. 2. VIEW OF CLEAR LAKE, NEAR 

 CAPE ROYDS, LOOKING TO N.W. 



[Photo by T. W. E. David 





.^ 5t 



*^;V». . ji*. 



. . A-.. 

 Fig. 3 



Fig. 4. BLUE LAKE, NEAR CAPE ROYDS 

 Looking north-we.steily. In the middle distance 

 is the dyke which almost isolates the northern 

 and southern parts of the lake. The esker 

 mounds are on the near side of the gap in the 

 dyke, " the narrows " 



Fig. 5. ESKERS OF BLUE LAKE, CAPE ROYDS 



Showing adjacent ice slope formed out of snow-drift by a process 

 of secondary crystallization 



[Photo by T. W. E. David 



Fig. G. coast LAKE, LOOKING SOUTH-EASTERLY 



The bottom of this lake is covered with algal peat 



[To face p. 156 



