62 
H. T. FERRAR. 
their dimensions. The height varies from 6 feet to 300 feet, and the breadth from 
10 yards to a mile. The surface usually dips at about 20° towards the ice-cliff. 
As in the case of the first type, the action is wholly protective, but is even 
more effective owing to the greater size of the fringe. 
A fringe of glacier-ice wraps the west side of Winter Quarters peninsula from the 
base of Mount Erebus to Crater Hill ; near Castle Rock, where the ice-cliff reaches 
300 feet, the fringe is perhaps at its highest. 
Around Winter Harbour the cliti' varies from 10 to 40 feet in height, and has 
a breadth which is sometimes as much as 100 yards ; there, and in several other 
places, this type of fringe forms a sort of ill-marked terrace about 100 feet above 
sea-level, and slopes gently out towards its seaward face. 
As in the case of glacier -terminations, it would seem that a lofty ice-cliff 
has always correspondingly deep water immediately adjoining it. 
