356 



GERTRUDE P. NORTON 



Fig. 1. A portion of the swamp at the lower end of Flathead Lake. The water 

 here is very shallow, becoming shallower in the distance, until it terminates in a 

 mud flat and extensive meadow. In high water this portion of the lake is from ten 

 to seventeen feet deeper than shown in the picture. (Photograph by Elrod.) 





'-"*'■: 



:^t> - '■"■•■ 





Fig. 2. Gravel beach east of the Biological Station, showing sand-bar willow 

 and dogwood. Douglas fir and larch forest in the background. This beach is 

 submerged early in the season. (Photograph by Elrod.) 



