262 



debris as to make it impossible to say whether one stood on more of ice or more of 

 solid heaps of rock fragments. 



At the southern extremity of the Royal Society Range, Kcettlitz Glacier flows 

 down from the Inland Ice partly to the S., but mainly into M'Murdo Sound. 



Of the Royal Society Range itself, the following are the most prominent peaks 

 in order from left to right : Mount Cocks, forming the southern extremity of the 

 range and part of the northern boundary of Skelton Inlet, and separated by the 

 Kcettlitz Glacier from Mount Kempe ; Mount Huggins, with a height of 12,870 

 feet ; Mount Riicker, 12,850 feet ; Mount Hooker, about the same ; and Mount 

 Lister, 12,995 feet. Together, they form a magnificent series of peaks in this range 

 of mountains, the precipitous edge of the great continental plateau known as 

 South Victoria Land. 



PLATE CXXXV. MOUNT EREBUS FROM THE N.-N.-W. 

 From a sketch made on board ship in passing ; Jan. 20, 1902, evening. (Map B.) 



Clouds cover the whole of the lower slopes of the mountain, and a fairly heavy 

 pack-ice occupies the sea along the coast of Ross Island ; but rising above the 

 clouds, to a height of 12,922 feet, the crater summit of Mount Erebus is clear, with 

 a pennant of " smoke " or vapour. 



From this side there are visible the remains of no less than three craters. The 

 peak half-way down the left of the mountain really forms part of the lip of an old 

 and evidently very extensive crater. The broad upper shoulders are the lip of a 

 second, and within these the present small open crater has been formed from which 

 puffs of vapour emerge in quick succession. 



See also Plate XXXVII., taken from about the same bearing, and at about 

 the same time. 



PLATE CXXXVI. MOUNT EREBUS AND MOUNT TERROR FROM 



THE W.-N.-W. 



From a sketch made on board ship in passing ; Jan. 21, 1902, 10 A.M. (Map B.) 



In this view of Ross Island the existence of Cape Bird as a distinct low 

 rounded mountain is more evident. 



The clouds on Mount Terror in the background, which were very often present, 

 suggested occasional activity quite as much as did the cloud of condensed vapour 

 at the summit of Mount Erebus. In the latter case, however, the appearance was 

 constant, while in the former it was occasional and intermittent. 



