I9II] THE BARRIER 'SHUDDER' 65 
Our feet gave us very little trouble indeed, except on 
the march, when they were often too cold for safety during 
slow and heavy plodding in soft snow. Wc always changed 
our footgear before eating our supper, and to this we 
attribute the fact that we seldom had cold feet at night, 
even at tlic worst. 
Saturday, July 29, 19TI.— We got away before day- 
light and marched a good soft plod all day, making 
6J- miles. Subsidences were frequent, and at lunch the 
whole tent and contents, myself included, as I was cook 
for the day, dropped suddenly with a perceptible bump, 
and with so h)ng and loud a reverberation all round that 
we all stood and listened for some minutes. Cherry 
said it started when liis foot went through some snow 
under the top crust, not when he was digging through 
this crust. The central subsidence set off innumerable 
others all round and these others in continually widening 
circles, and the noise took quite two or three minutes 
to die away. 
We had no wind to-day, calm and southerly airs only, 
and a temp, ranging from -42° a.m. to "45'3° p.m. 
There was an aurora all night, and at 3 a.m. Bowers 
noted a brilliant variegated curtain, altitude 30'' to 60°, ex- 
tending from the N.E. to about S.S.W., with much motion 
in the rays, and with orange and green well defined. 
Sunday, July 30, 191 1. — Wc had a day of perfect 
weather and good travelling and covered jl miles. The 
amount of daylight during this and the preceding two 
days has been surprisingly great, and enabled us to see 
a tremendous amount of detail in the hills and snow 
VOL. II. F 
