Trans_. 1858, p. 214). He also arrived at the conclusion (p. 219) that
heat could be conducted through the substance of a mass, and melt
portions of the interior, without visible prejudice to the solidity of
the other parts of the mass.]
[Footnote 200: _Journal des Mines_, xxxiii. 157. See also an English
translation of his account in the second volume of the _Edinburgh
Journal of Science_.]
[Footnote 201: It is to be hoped that the accuracy of his scientific
descriptions exceeds that of his topographical information; for he
states that the glaciere is two leagues from Valence, whereas it cost me
six hours' drive on a level road, and five and a half hours' walking and
climbing, to reach it from that town.]
[Footnote 202: Branch _Physique_, article _Glace_]
[Footnote 203: P. 146 (an. 1853).]
[Footnote 204: Dr. Lister experimented on sea-water in December 1684
(_Ph. Trans_, xiv. 836), and found that though it took two nights to
freeze, it was much harder when once frozen than common ice, lasting for
three-quarters of an hour under a heat which melted 100 times its bulk
of common ice at once.
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