THE STATIONS. 5 



so that, the feet .sink in only a fraction of an inch. The Barrier surface is nowhere com- 

 posed of liard ice, and it is probably only at considerable depths that the snow loses its 

 porous texture and becomes solid ice. This fact will be slioxvn to have an impoi-tant bearing 

 on the temperatures measured on the Barrier. 



The Stations. 



Cape Evans.— The winter quarters of Captain ^^cott's second expedition were situated on a 

 small cape jutting out from Ross Island into McMurdo Sound (see figure 2). Rost Island 



170° 



Fig. 2. Map of the .Sunoundings of Cape Evans. 



is almost entirely occupied by two volcanoes, Mount Erebus and Mount Terror, the formw of 

 which is still active. It is separated from the mainland by McMurdo Sound. The western 

 coast of the island runs almost due south for fifty miles from Cape Bird to Hut Point 

 and IS roughly parallel with the opposite coast of the Sound which is forty miles away. 



