The
intersections of the bounding surfaces of these segments with the
surface of the slab of ice formed a very irregular network of
lines.[210] I am inclined, however, to think that the irregularity in
these cases proved to be so much greater than that observed in the
glacieres, that this interior prismatic subdivision must be referred to
some different cause.
FOOTNOTES:
[Footnote 196: The continued extrication of latent heat by ice, as it is
cooled a few degrees below 32 deg. F., appears to indicate a molecular
change subsequent to the first freezing.--_Phil. Trans._, as quoted in
the next note.]
[Footnote 197: See the paper 'On Liquid Diffusion as applied to
Analysis,' by the Master of the Mint (_Phil. Trans._ 1861, p. 222).]
[Footnote 198: Compare the description of one of the hollow stalagmites I
explored in the Schafloch, p. 145.]
[Footnote 199: Professor Tyndall has pointed out that, owing to the want
of perfect homogeneity, some parts of a block of ice exposed to a
temperature of 32 deg. F. will melt, while others remain solid _(Phil.
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