58 THE FORMS OF WATER IN 



were found near the end of the Glacier des Bossons, many 

 rifles below the existing crevasse. 



144. The same observation proves to demonstration 

 that it is the ice near the bottom of the higher nev& 

 that becomes the surface-ice of the glacier near its end. 

 The waste of the surface below the snow-line brings 

 the deeper portions of the ice more and more to the 

 light of day. 



145. There are numerous obvious indications of the 

 existence of glacier motion, though it is too slow to 

 catch the eye at once. The crevasses change within 

 certain limits from year to year, and * sometimes from 

 month to month ; and this could not be if the ice did 

 not move. Kocks and stones also are observed, which 

 have been plainly torn from the mountain sides. Blocks 

 seen to fall from particular points are afterwards 

 observed lower down. On the moraines rocks are 

 found of a totally different mineralogical character from 

 those composing the mountains right and left ; and in 

 all such cases strata of the same character are found 

 bordering the glacier higher np. Hence the conclusion 

 that the foreign boulders have been floated down by 

 the ice. Further, the ends or c snouts 5 of many glaciers 

 act like ploughshares on the land in front of them, 

 overturning with slow but merciless energy huts and 

 chalets that stand in their way. Facts like these 

 have been long known to the inhabitants of the HiVL 



