362 



ARTHUR C. TROWBRIDGE 



The Size of Glacial Devils Lake. — After description of the sources 

 of supply for the basin of Devils Lake during the occupancy of the 



I Mile 



Fig. 2. — A geologic and topographic map of the Peck basin. The locations of 

 wells and outcrops involved in the accompanying table are given, also the line of the 

 section AA, shown in Fig. 3. 



ice, it is evident that the glacial lake must have been larger than 

 now after most of these sources have been cut off. Indeed, there 



