it on our depot journeys, but were unfortunately obliged to give it up
on the main southern journey. We were so many in a tent, and space was
so limited, that I dared not risk using it. If one has room enough,
it is ideal in my opinion.

We had with us ten pairs of snow-shoes and one hundred sets of
dog-harness of the Alaska Eskimo pattern. The Alaska Eskimo drive
their dogs in tandem; the whole pull is thus straight ahead in the
direction the sledge is going, and this is undoubtedly the best way of
utilizing the power. I had made up my mind to adopt the same system
in sledging on the Barrier. Another great advantage it had was that
the dogs would pass singly across fissures, so that the danger of
falling through was considerably reduced. The exertion of pulling is
also less trying with Alaska harness than with the Greenland kind,
as the Alaska harness has a shallow, padded collar, which is slipped
over the animal's head and makes the weight of the pull come on his
shoulders, whereas the Greenland harness presses on his chest. Raw
places, which occur rather frequently with the Greenland harness, are
almost entirely avoided with the other. All the sets of harness were
made in the navy workshops, and after their long and hard use they
are as good as ever. There could be no better recommendation than this.

Of instruments and apparatus for the sledge journeys we carried
two sextants, three artificial horizons, of which two were glass
horizons with dark glasses, and one a mercury horizon, and four spirit
compasses, made in Christiania. They were excellent little compasses,
but unfortunately useless in cold weather -- that is to say, when the
temperature went below -40deg. F.; at this point the liquid froze. I had
drawn the maker's attention to this beforehand and asked him to use as
pure a spirit as possible. What his object was I still do not know,