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As we stood on the ice at the entrance and peered into the comparative
darkness, we saw by degrees that the glaciere consisted of a continuous
sea of smooth ice, sloping down very gently towards the right hand. The
rock which forms the roof of the cave seemed to be almost as even as the
floor, and was from 4 to 5 feet high in the neighbourhood in which we
now found ourselves, gradually approaching the floor towards the bottom
of the pit B, where it became about a foot high, and rising slightly in
that part of the cave where the floor fell, so as to give 9 or 10 feet
as the height there. The ice had all the appearance of great depth; but
there were no means of forming a trustworthy opinion on this point,
beyond the fact that I succeeded in lowering a stone to a considerable
depth, in the small crevice which existed between the wall and the block
of ice which formed the floor. The greatest length of the cave we found
to be 112 ft. 7 in., and its breadth 94 ft., the general shape of the
field of ice, which filled it to its utmost edges, being elliptical.


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