THE ROYAL SOCIETY RANGE. 
‘23 
the nunataks. Later, when the former extent of the Beacon Sandstone Formation is 
considered, it will be seen that this uniformity of landscape is not surprising. 
(4) The Royal Society Range has a length of some 50 miles ; this length is 
almost bisected by the 78th parallel of latitude, and is the only part of South 
Victoria Land which has been examined in detail. In the main all the structures 
observed in the Admiralty Range are again seen, but are much more strikingly 
developed (Fig. 9). There are foothills of insignificant height, a north-and-south 
valley separating the foothills from the main mountain -mass, and a mountain-mass 
Fig. 9. — Modnt Huggins and the Royal Society Range. 
rising in a uniform cliff behind to a height of 10,000 feet and having occasional 
peaks over 12,000 feet in altitude. 
From our Winter Quarters this range could always be seen, though quite 
50 miles away ; and so clear was the atmosphere that, even at this great distance, 
the plateau-form was always evident and was rendered still more striking by the 
broad band of lighter-coloured rock below. This band must be at least 2000 feet 
thick ; it is apparently bedded horizontally and extends from end to end of the 
range. The peaks rising above the plateau are of darker-coloured rock and in 
strong contrast with it. 
Thus, the form of the range appears to be determined by the horizontality 
