.55"
Schafloch .... 33 deg..88"
Monthezy .... 41 deg..55"
The law of decrease of temperature enunciated by M. Thury gives a higher
mean temperature for the surface of the earth in these places, as in the
following table:--
S. Georges .... 41 deg..8 Fahr.
S. Livres .... 40 deg..1"
Schafloch .... 35 deg..6"
Monthezy .... 42 deg..5"
If any certain information could be obtained of the elevation of the
Abbey of Grace-Dieu, I am sure that a result more surprising than that
in the case of the Glaciere of Monthezy would appear. The elevation of
the floor of the church in the citadel of Besancon is 367.7 metres, and
the plateau on the north side of the town of Baume-les-Dames is 531.9
metres. I am inclined to think, from the look of the country, that the
latter possesses much the same elevation as the valley in which the
Abbey lies; and in that case we should have comparatively a very high
mean temperature for the surface in the neighbourhood where the glaciere
occurs.
But if these are the mean temperatures of the surface, the natural
temperatures of the caves themselves should be still higher, on account
of the allowance to be made for increase of temperature with descent
into the interior of the earth.
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