ANTARCTIC ADVENTURE AND RESEARCH 



found that the Upernivik Glacier moved one hundred 

 and twenty-five feet a day in August (40° F.) and only 

 thirty-three feet a day in April (12° F.). The follow- 

 ing table (partly based on Hess)" gives the velocities 

 of various glaciers. It is obvious, however, that the 

 velocity depends largely on the size and slope of the 

 glacier concerned — as well as on the temperature con- 

 ditions. 



Glacier 



Karajak 



Muir 



Mer de Glace 



Rhone Glacier . . . 

 Hintereis Glacier 



Tasman 



Franz Joseph . . . . 



Mackay 



Barne Glacier . . . 



Taylor 



Ferrar 



Ross Barrier . . . . 

 Beardmore 



Velocity 

 (usually yearly average} 



59 feet per day 



7 feet per day 



1.6 feet per day 



I foot per day 



0.5 foot per day 



1.5 feet per day 

 16 feet per day 



2.8 feet per day (summer) 

 30 feet per year 

 Stagnant 

 32 feet (Feb. to Oct.) 



1.4 feet per day 



3 feet per day (?) 



In the preceding diagram (see Figure 18) I show 

 five typical glaciated regions : Kosciusko is in Australia 

 and Mount Field in Tasmania, Ruapehu and Cook are 

 in New Zealand. Mount Lister is on the west side of 

 MacMurdo Sound in Antarctica. The heavy black 

 line shows the present position (in latitude and eleva- 

 tion) of the temperature layer of 32° F. (the "Niva- 

 tion Layer"). Hence cirque-cutting is occurring to-day 



2 Hess, Die Gletscher (Brunswick, 1904). 



