_Literary Magnet_.

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ARCANA OF SCIENCE.

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_Polar Expedition._

It is known by the experience of all former voyages to the arctic
circle, that towards the end of the season, in consequence of the heat
radiating from the lard, the ice is detached from the shores of these
seas, and floats southward. Ice, therefore, does not detach from other
ice, but from the coast. Taking this principle with us, when we find
that our expedition traversed a surface of some hundred miles, we
conclude, whatever was the extent of that mass drifting south, it must
have left an equal extent of open water in its original place in the
north. We also infer, that there must be land at the north pole, from
which this body was separated; and that if it could have been entirely
crossed, Captain Parry and his companions would have found a clear sea
for the boats, and had little difficulty in reaching Polar
Land.--_Literary Gazette_.