gee-pole, sometimes exchanged places
with him, but not often. Perrault was in a hurry, and he prided himself
on his knowledge of ice, which knowledge was indispensable, for the fall
ice was very thin, and where there was swift water, there was no ice at
all.

Day after day, for days unending, Buck toiled in the traces. Always,
they broke camp in the dark, and the first gray of dawn found them
hitting the trail with fresh miles reeled off behind them. And always
they pitched camp after dark, eating their bit of fish, and crawling
to sleep into the snow. Buck was ravenous. The pound and a half of
sun-dried salmon, which was his ration for each day, seemed to go
nowhere. He never had enough, and suffered from perpetual hunger pangs.
Yet the other dogs, because they weighed less and were born to the life,
received a pound only of the fish and managed to keep in good condition.

He swiftly lost the fastidiousness which had characterized his old life.
A dainty eater, he found that his mates, finishing first, robbed him of
his unfinished ration. There was no defending it. While he was fighting
off two or three, it was disappearing down the throats of the others. To
remedy this, he ate as fast as they; and, so greatly did hunger compel
him, he was not above taking what did not belong to him. He watched and
learned. When he saw Pike, one of the new dogs, a clever malingerer and
thief, slyly steal a slice of bacon when Perrault's back was turned,
he duplicated the performance the following day, getting away with the
whole chunk. A great uproar was raised, but he was unsuspected; while
Dub, an awkward blunderer who was always getting caught, was punished
for Buck's misdeed.

This first theft marked Buck as fit to survive in the hostile Northland
environment. It marked his adaptability, his capacity to adjust himself
to changing conditions, the lack of which would have meant swift and
terrible death. It marked, further, the decay or going to pieces of his
moral nature, a vain thing and a handicap in the ruthless struggle for
existence. It was all well enough in the Southland, under the law of
love and fellowship, to respect private property and personal feelings;
but in the Northland, under the law of club and fang, whoso took such
things into account was a fool, and in so far as he observed them he
would fail to prosper.

Not that Buck reasoned it out. He was fit, that was all, and
unconsciously he accommodated himself to the