INTRODUCTION 



13 



TABLE 2. Tablt giving available data on location and size of lakes visited during the 

 course of this investigation. The fint column refers to the page on which a map 

 of the lake may be found in Birge and Juday, The inland lakes of Wisconsin, the 

 hydrography and morphometry. Bull. 27. Wu. Oeol. and Nat. Hist. Survey. 



