PLATE LXXXV 



Fig. 1. MORAINE MOUNDS. POSSIBLY ESKERS, BLUE LAKE, 



CAPE ROYDS 



Fig. -1. MORAINES LEFT BY THE OLD ROSS BARRIER 

 Above Backdoor Bay, Cape Royds, and 500 feet above sea-level. Trace.s are 

 shown of the " white paths," perhaps contraction cracks, which develop with 

 change of season, or cracks connected with settlement of the moraines resulting 

 from the melting of old glacier ice, or the creep of glacier ice beneath them 



[To face p. 262 



