_ the west of France. The existence of glacial act 
Quarterly Journal of the Geological Society, 1852, p. 85 
Voyage of Adventure and Beagle, iii, p. 282. 
326 Terrestrial Climate as influenced by the 
to a corresponding amount. But although the os hy | 
anger of und 
reference to the question of glacial action at former geol pra 
epochs, as has been done by Mr. Hopkins,* we need only oe 
our attention to what actually takes place at corresponding 
tudes in the southern hemisphere. In these region 
only an absence of such an active calorific agent, 
abstraction of some of the heat due to them from 
which falls upon a portion of their oceans, bina 
ere. 
| 
4 
| 
by Mr. Darwin.t iatitade 
observed one instance of a glacier reaching the sea 10 da “ee 
46° 40’, which corresponds to that of Napoleon baie he 
C ; on in He 
. 
t 
