THE HISTORY OF DEVILS LAKE, WISCONSIN 363 



is a question as to whether the basin of Devils Lake was large 

 enough to confine all this water. If it be assumed that the amount 

 of water supplied to the basin by ground water was balanced by 

 loss due to seepage into the debris at either end of the lake, and 

 that the precipitation on the surface of the lake and on the lakeward 



Fig. 3.— Section along line A A, Fig. 2, showing surficial and underground condi- 

 tions in the Peck basin. 



slopes was balanced by evaporation, the glacial water is still 

 unaccounted for. 



Careful measurement of the terminal moraine from the north- 

 west edge of the Devils Lake basin, through all its curves to the 

 crest of the Devils Nose southeast of the lake, shows that water 

 drained into Devils Lake from 1 1 . 6 miles of ice edge. To get some 

 conception of the amount of water which this front of ice con- 

 tributed, let us suppose that the ice edge tributary to the lake had 



