Survey of Northeast Greenland. 447 
Sælsøen ought presumably to be looked upon as a fjord arm, 
the connection of which with the sea is at present blocked by the 
inland ice. If the latter recedes a few kilometres, the lake will pro- 
bably cease to have the character of a lake, and the level of the sea 
would drop to the altitude of zero. After that the outlet of Sælsøen 
into Dove Bugt, the Lakseelven (the salmon river), will be played out. 
This river, the length of which is only 7 km, is presumably the 
river with the greatest quantity of water in Germania Land. Its width 
is 60 m, the depth at its mouth is 3—5 m; at the outlet from Sælsøen 
Fig. 141. Clay plain at the southeastern end of Annekssøen. 
Germania Land. April. 
the water is presumably considerably shallower, and yet in 1912 we 
looked, in this place, in vain for a crossing for our horses. 
The river is rich in salmon. 
The surface of Annekssøen lies 40m above the level of the 
sea. The level of the water varies as in Sælsøen, and during the 
melting of the snow may rise one to two metres. In the centre of 
the lake TROLLE has measured the depth at 90m. The south-eastern 
end of the lake, which is bounded by a terminal moraine, stretching 
almost from one bank to another, has a very shallow water depth 
and a clayey bottom; the bottom of the valley immediately south- 
east of the lake consists of a clay plain. The glacier, which in its 
time filled up the valley of Annekssgen, has in other words for a 
period remained stationary with the glacier front near the present 
XLVI. 29 
