THE GRANITE HARBOUR EXPEDITION 361 



record ! Luckily, I had an aneroid, and this showed it to be 

 over fifteen hundred feet high. I got a magnificent view of 

 Granite Harbour and the Mackay Glacier. The large ice 

 tongue ended in three splay "fingers," and was badly crevassed, 

 except right at the end. Far to the east I could see Mount 

 Erebus and Beaufort Isle. Below was a regular succession 

 of shear-cracks, due to the irresistible pressure of the Mackay 

 Tongue pushing out the bay ice. Great pressure ridges, six, 

 ten, and fifteen feet high marked where the bay ice was being 

 jammed on to the BlufF. These were very prominent near 



■Devil s 



Iron 



Pressure-ridges in the sea ice, looking west from Cape Geology to the Punch 



Bowl cwm, January 13, 191 2. 



Cape Geology also, and pools of water collected in the hollows 

 between the ridges. 



On the afternoon of the 5th we started to the north, to 

 march around the end of the Mackay Tongue, which lay about 

 five miles off. We were now crossing ice covered with nearly 

 a foot of snow ; but with only one sledge and ten days' food, 

 we got along in fine style. We could easily see our signal flag 

 flying on the BlufF, and the red showed quite clearly when the 

 wind blew it out. We reached one of the " fingers " at the 

 end of the ice tongue about 6.30, and here I decided to camp, 

 so as not to lose sight of our survey stations. 



" There seems to be no large tide crack here, which means 



