IN WINTER QUARTERS WITH CAPTAIN SCOTT 281 



epoch, separated into three inter-glacial periods. The general 

 temperatures can be obtained by studying the depression in 

 the snow-line and the position of the moraines in these four 



Gunz 



Mindel 



RiSS 



Wurm Ts/ow 



^■kz -future, fce-a-ge \Q-fti 





Ice Ages. It really looks as if we were now in an inter- 

 glacial period, rather than permanently free from glacial con- 

 ditions. However, the next Ice Age is seventeen thousand 

 years off, even by the lowest computation. 



I was able to make a characteristic sketch of Erebus on the 

 1 8th July. The steam cloud extended across an arc of 90 , 



Similar reversal of the steam banner of Erebus at noon, May 1, 191 1. 



and appeared to be drifting to the south. The banner was 

 possibly a hundred miles long. On the surface there was a 

 cool southerly wind, in just the opposite direction. Several 

 fine undulations showed in this banner, and at times a hummock 

 of steam over the crater pointed to extensive outbursts of 

 vapour. Far to the south the banner was very faint, and 

 reminded one of the Milky Way. 



The dawn colours were very beautiful. We were not to 



