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SCENERY OF SWITZERLAND. 
CHAPTER XIX. 
THE UPPER AAR. 
The Upper Aar from its source to the Hospice 
occupies a longitudinal valley. It is fed by the two 
great glaciers known as those of the Oberaar, and 
Unteraar. The Unteraar glacier, which is about nine 
miles in length and two broad, has, from its con- 
siderable size and level surface, been selected for 
many scientific observations. As long ago as 1827 
Hugi built a hut on it, the remains of which were 
found by Agassiz in 1840, having moved forward 
about 4600 feet. In 1841 Agassiz himself built an- 
other hut on the glacier, long known as the Hotel 
des Neufchatelais. A peak visible from the Hospice 
has been named the Agassizhorn, in recognition of 
his valuable researches. At the Hospice the Aar 
turns northwards at a right angle into a cross valley. 
The rocks here, and down to Handeck, are remark- 
ably glaciated, and the contrast between the lower 
portion, smoothed by the glacier, with the rugged 
and jagged rocks above is very marked. 
