Plate I. — A berg with peculiar projections. Both the one on the berg proper and the one sep- 

 arated from the berg by a narrow strip of water show evidences of former water lines 



Plate II.— The diagonal band running from left to right through the middle part of this berg 

 is a typical blue streak. These deep blue bands of clear ice were once cracks in the Greenland 

 ice cap. They became filled up with water which froze and formed a different sort of ice from 

 the usual bubble-filled kind made of compressed snow 



