THE LIFE OF DEVILS LAKE 



57 



ANNOTATED LIST OF SPECIES 



BACTERIA 



The bacteria of Devils Lake are abundant. Apart from the 

 usual sources of infection tliru wind and drainage, considerable 

 sewage from the city of Devils Lake 5 km. distant, flows into Creel 

 Bay thru a drainage ditch. 



In the plancton collections the bacteria include one of the most 

 common types. Naturally no Mttciiiiit has Ix-oii made to distinguish 



Figure 16. Water bottle for bacteriological samples, see p. 58 lor description. 



