As I came below to bed at 11 P.M. Bruce
was slogging away, making fair progress, but now and again brought up
altogether. I noticed the ice was becoming much smoother and thinner,
with occasional signs of pressure, between which the ice was very thin.
'We had been very carefully into all the evidence of former voyages
to pick the best meridian to go south on, and I thought and still
think that the evidence points to the 178 W. as the best. We entered
the pack more or less on this meridian, and have been rewarded by
encountering worse conditions than any ship has had before. Worse, in
fact, than I imagined would have been possible on any other meridian
of those from which we could have chosen.
'To understand the difficulty of the position you must appreciate
what the pack is and how little is known of its movements.
'The pack in this part of the world consists (1) of the ice which has
formed over the sea on the fringe of the Antarctic continent during
the last winter; (2) of very heavy old ice floes which have broken
out of bays and inlets during the previous summer, but have not had
time to get north before the winter set in; (3) of comparatively
heavy ice formed over the Ross Sea early in the last winter; and (4)
of comparatively thin ice which has formed over parts of the Ross
Sea in middle or towards the end of the last winter.
'Undoubtedly throughout the winter all ice-sheets move and twist,
tear apart and press up into ridges, and thousands of bergs charge
through these sheets, raising hummocks and lines of pressure and
mixing things up; then of course where such rents are made in the
winter the sea freezes again, forming a newer and thinner sheet.
Pages:
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57