1921. No. II. 



THE STRANDFI.AT AND ISOSTASV 



A. View eastwards bet »veen north-east, Havarden Island, and south-southeast. 

 Aug. 12, 191 II. 



B. Between south-southwest 



and I tliiiik that these are just the characteristic features one might ex- 

 pect to find along a coast where the shores have been cut l)ack l)v frost 

 erosion, forming broad benches or narrower ledges backed by steep cliffs, 

 or shore-walls, along the outer coast as well as in the bays. The débris 

 formed by this erosion has been carried away to some extent by the wave 

 action, but much more by the glaciers which have afterwards moved across 

 the lanrl. The steep sides of these bays and small valley channels on Radoi, 

 which Ahlmann considers to have been formed by glacial erosion, and of 

 which he has given a very good picture [1919, p. loi, Fig. 47I, have just 

 the characteristic features of shore-cliffs formed by frost erosion, and 

 have not, as far as I can see, the typical surface of rock-walls originally 

 formed by glaciers, although they are to some small extent scoured by 

 the glaciers of the last glacial period. 



Ahlmann says that his higher level (jf between 33 anrl 40 metres, 

 comprises the greater part of thé Manger district, and he thinks that in 

 the southern part of the island, at Sæbo, this satue level may possiljly be 

 45 — 50 metres above the sea, and lie draws the conclusion that this "upper 



