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SCENERY OF SWITZERLAND. 
Movememt of Glaciers. 
Rendu, afterwards Bishop of Annecy, in 1841 
first stated clearly the similarity between the move- 
ments of a river and those of a glacier. 
Subsequent observations have confirmed Rendu’s 
statements. In fact the glacier may be said really to 
flow, though of course very slowly. 
The movement of a glacier resembles that of a 
true river, not only generally, but in many details; 
the centre moves more quickly than the sides; where 
the course curves, the convex half moves more 
quickly than the concave, and the surface more 
quickly than the deeper portions. The movement is 
more rapid, indeed some three times more quick, in 
summer than in winter. 
The first detailed observations on the movements 
of glaciers were made independently and almost 
simultaneously by Agassiz on the Unter-Aar glacier, 
and by Forbes on the Mer de Glace. 
The yearly motion of the Swiss glaciers is es- 
timated at from 50 to 130, or in some exceptional 
cases even 300 metres. The rapidity differs however 
considerably, not only in different glaciers, but in 
different parts of the same glacier; in different years, 
and different times of year. The remains of Dr. 
