It was determined to start on the following day with five weeks'
provisions for men and animals; to go forward for about fourteen days,
depôt two weeks' provisions and return. Most unfortunately Atkinson would
have to be left behind with Crean to look after him. He had chafed his
foot, and the chafe had suppurated. To his great disappointment there was
no alternative but to lie up. Luckily we had another tent, and there was
the cooker and primus we had dug out of Shackleton's tent. Poor Crean was
to spend his spare time in bringing up loads from the Fodder Depôt to
Safety Camp and, worse still from his point of view, dig a hole downwards
into the Barrier for scientific observations!

We left the following morning, February 2, and marched on a patchy
surface for five miles (Camp 4). The temperature was above zero and Scott
decided to see whether the surface was not better at night. On the whole,
it is problematical whether this is the case--we came to the conclusion
later that the ideal surface for pulling a sledge on ski was found at a
temperature of about +16°. But there is no doubt whatever that ponies
should do their work at night, when the temperature is colder, and rest
and sleep when the sun has its greatest altitude and power. And so we
camped and turned in to our sleeping-bags at 4 P.M. and marched again
soon after midnight, doing five miles before and five miles after lunch:
lunch, if you please, being about 1 A.M., and a very good time, for just
then the daylight seemed to be thin and bleak and one always felt the
cold.

Our road lay eastwards through the Strait, some twenty-five miles in
width, which runs between the low, rather uninteresting scarp of White
Island to the south, and the beautiful slopes of Erebus and Terror to the
north. This part of the Barrier is stagnant, but the main stream in front