80 



HOBBS— CHARACTERISTICS OF THE 



[April 22, 



Franz Josef fjord on the east coast near latitude 75° N., as these 

 have been mapped by the Swedish Greenland Expedition of 1899 

 (see Fig. 2i).-3 The work of mountain glaciers about King Oscars 

 fjord is clearly displayed by Nathorst's photograph reproduced in 

 Plate XXVI, A. Essentially the same features are shown also to 

 the right in Fig. 18 (p. 78). 



Fig. 20. Comparison of the several profiles across the margin of the 

 inland-ice (a) at latitude 69 1/2° on the west coast (Peary) ; (fc) at latitude 

 68 1/2° on the west coast (Nordenskiold) ; (c) at latitude 64° on the west 

 coast (Nansen) ; and (</) at latitude 64 1/2° on the east coast (Nansen). 



While we are without absolute knowledge of the relief of the 

 land beneath most of the inland-ice, we know that the mountainous 

 upland of the coast extends well within the ice margins, since the 

 peaks project through the surface as ice-bounded rock islands or 

 nimataks. The irregularities of this basement and the submergence 

 and consequent drowning of the valleys to form deep fjords within 

 the marginal zones, largely account for the markedly lobate out- 



^ A. G. Nathorst, " Den svenska expeditionen till nordostra Gronland," 

 1899, Ymer, Vol. 20, 1900, map 11. 



