LAKES. 
249 
has been a comparatively recent elevation, even since 
the commencement of the Glacial period, along a line 
traversing the Lake of Zurich. This is shown by the 
fact, that while the lower terraces follow the general 
slope of the valley, the upper glacial deposits present 
for some distance a reverse inclination. M. Aeppli 
in his recent work* has described them in more 
detail. They are seen on both sides of the lake, be- 
tween Horgen and Wadenschweil on the one side, 
and between Meilen and Stafa on the other. They 
do not, however, exactly correspond on the two sides 
of the lake, because the zone of compression crosses 
the lake diagonally, commencing more to the south 
on the east side. For the same reason, while the 
compression has on the east side made the terraces 
slope towards the lake, on the west the slope is to- 
wards the hill. This curious fact was very difficult 
to account for, but is satisfactorily explained by the 
inversion of the terrace. 
I had the great advantage of visiting the terraces 
on the west of the lake under the guidance of Pro- 
fessor Heim, and looking across we could clearly see 
those on the east side also. 
Passing to other countries the case of the Dead 
Sea is very suggestive. From the lower end a long 
* Beitr. z. Geol. K. d. Schw., L. xxxiv. 
