8 4 



PLATE XLIIL MOUNT TERROR. 



FIG. 1 (Map B). From a photograph taken by E. H. SHACKLETON (Sh. 46, 

 i-plate), Jan. 22, 1902 ; looking due S. from the open sea. 



FIG. 2 (Map B). From a photograph by C. R. Eoyds (R. 176, 5"x4" film), 

 Nov. 2, 1902; looking S.-W. from the surface of the frozen sea. 



FIG. 3 (Map B). From a photograph by R. W. SKELTON (Sk. 76, -plate), Jan. 23, 

 1902 ; looking S.-E. towards Mount Terror, from the open sea, and showing 

 the N.-W. face of the mountain. 



The highest distant point in each of these three pictures represents the crater 

 summit of Mount Terror, a quiescent volcano, 10,775 feet above the level of 

 the sea. Figs. 1 and 2 show how bare of ice are its eastern and north- 

 eastern faces when compared with the N.-W. face in Fig. 3, and the whole 

 of the S. and W. as seen in Plate XLIV. This deficiency of snow and ice on 

 the eastern side is due probably to the prevailing southerly winds which sweep 

 with terrific force round the lower eastern side of the island. Fig. 1 shows the 

 slope, rising directly from the shore, upon which is established a most populous 

 "rookery" of Adelie Penguins. In the centre of this "rookery" is fixed a 

 record post, to which cylinders are attached by passing explorers, giving informa- 

 tion as to their movements, and advice to facilitate relief in the event of accident. 

 (See Plate XLV., Fig. 2.) 



For details of the geology of Ross Island, of which Mount Terror forms a part, 

 see Ferrar, Nat. Hist. Rep., vol. i., p. 8 et seq. 



See also, Scott, Voyage of the 'Discovery' vol. i., p. 166 et seq. 



