248 



BUI<LETIN OF The bureau OF FISHERIES. 



Table 20.— Dry Weight and Organic Matter op Plankton Crustacea and Rotipersin Three 

 Finger Lakes, N. Y., and in Green Lake, Wis. 



canandaigua lake. 



CAYUGA LAKE. 



SENECA LAKE. 



GREEN LAKE. 



