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Of course, the interior cannot be
wholly free from ice; and it will be seen from the account of one of
these cavities, which I explored in the Schafloch, that they are
decked with ice precisely as might be expected.[9] Another possible
explanation of this curious and beautiful phenomenon will be given
hereafter.[10]
The temperature was half a degree lower than when there were three of us
in the cave two days before. I deposited one of Casella's registering
thermometers, on wood, on a stone in that part of the floor which was
free from ice, though there was ice all round it at some little
distance. The thermometer was well above the surface of the ice, and
was protected from chance drops of water from the roof.
The next morning I started early from Arzier, having an afternoon
journey in prospect to the neighbourhood of another glaciere, and was
accompanied by Captain Douglas Smith, of the 4th Regiment. On our way to
La Genolliere, we came across the man who had served as guide the day
before, and a short conversation respecting the glaciere ensued.


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