190 



PLANKTON OF WISCONSIN LAEE€ 



Table 14. A summary of the ash and silica determinations for the 

 net plankton of Lake Mendota, 1911 to 1917, The results are stated in 

 percentages of the dry weight of the net plankton. 



Table 15. Analyses of the ash of the net plankton. The results are 

 stated in percentages of the dry weight of the net plankton. 



