THE FORMER EXTENSION OF GLACIERS. 
137 
Fig. 34 represents river terraces and glacial de- 
posits in the valley of the Aar, a short distance 
above Coblenz. 
Passing from the Aar eastwards, in the district 
of the Wigger, there are important moraines round 
the Lake of Wauwyl, which was itself the site of 
a Lake Village carefully studied by Col. Suter, but 
is now drained. 
In the valley of the Suhr is an important ter- 
minal moraine at Stafelbach, another at Triengen, 
while a third encircles and has given origin to the 
Lake of Sempach. 
In the valley of the Winan there is a terminal 
moraine at Zezwil and another just above Munster. 
In the valley of the Aa, are three groups; firstly, 
one near Schafisheim. Secondly, at the north end 
of the Lake of Hallwyl are several moraines (Fig. 35); 
thirdly, between Schafisheim and Egliswyl are three 
moraines, the inner one encircling a moss, marked 
Todtenmoos on the map, through which runs the 
river Aa. Near Nieder Hallwyl is another semicircular 
moraine enclosing an area of low ground and the 
end of the lake. It extends along the hill on both 
sides of the water. The moraines are in parts roughly 
stratified, and fall away from the lake, having origin- 
ally sloped no doubt from the great dome of the 
