THE GRANITE HARBOUR EXPEDITION 



383 



Debenham Glacier). Quite a number of these peaks show 

 a recurved spine on the summit, which is probably due to the 

 weathering of dolerite crags. To the north-west is a moun- 

 tain approaching seven thousand feet, which is capped by 

 dolerite lava." (We called it Black-cap at first, but it is now 

 officially known as Mount Tryggve Gran, after our ever- 

 cheerful comrade.) " In the face of this mountain are faulted 

 white bands which are probably Beacon Sandstone." 



That evening we camped on Redcliff Nunakol. This latter 

 term I invented with Gran's assistance to describe a rock 

 island resembling a nunatak, but rounded by previous glacial 

 erosion. The nunatak has properly never been below the 

 ice ; hence its name, from the Icelandic nuna, lonely, and tak, 



Sooth Col 



iisoo 



TkeDeck 



North Col 

 Bulwark 



Mount Suess Nunatak, looking west from Redcliff, December 29, 191 2. 



a jagged peak. Nunakol is from nuna, lonely, and kot, a 

 rounded ridge. 



We placed the tent on a patch of gravel near to a little 

 waterfall. I followed up this stream, and found that it rose 

 in some swampy ground where a little moss was growing. 

 Next morning we all explored the Nunakol, which was 1080 

 feet above the glacier. The top was more or less flat, and 

 as usual consisted of granite covered with much debris. I 

 managed to do some sketching, and was especially interested 

 in the numerous pot-holes cut out in granite by the wind. 

 They were about a foot in diameter and eight inches deep, 

 and each contained some pebbles by which they had been 

 scoured out. 



