sketches explain themselves. I think wall 'b' should be higher than wall 'a.'
My night on duty. The silent hours passed rapidly and comfortably. To bed 7 a.m.
Thursday, June 8.—Did not turn out till 1 p.m., then with a bad head, an inevitable sequel to a night of vigil. Walked out to and around the bergs, bright moonlight, but clouds rapidly spreading up from south.
Tried the snow knife, which is developing. Debenham and Gran went off to Hut Point this morning; they should return to-morrow.
Friday, June 9.—No wind came with the clouds of yesterday, but the sky has not been clear since they spread over it except for about two hours in the middle of the night when the moonlight was so bright that one might have imagined the day returned.
Otherwise the web of stratus which hangs over us thickens and thins, rises and falls with very bewildering uncertainty. We want theories for these mysterious weather conditions; meanwhile it is annoying to lose the advantages of the moonlight.
This morning had some discussion with Nelson and Wright regarding the action of sea water in melting barrier and sea ice. The discussion was useful to me in drawing attention to the equilibrium of layers of sea water.
In the afternoon I went round the Razor Back Islands on ski, a run of 5 or 6 miles; the surface was good but in places still irregular with the pressures formed when the ice was 'young.'
The snow is astonishingly soft on the south side of
