Biology of the Membra cidae of the Cayuga Lake Basin 197 



Fig. 38. drainage map of cayuga lake region showing location and extent of the 



VARIOUS stations DISCUSSED 



The watershed areas are as follows: Fall Creek, 117 square miles; Cascadilla Creek, 1G.2 square miles; 

 Six Mile Creek, 46.4 square miles; Inlet. !*2.9 square ntiles. The check marks across the streams indicate 

 successive elevations (contour intervals) of 20 feet each 



(Reproduced by courtesy of Professor J. G. Needham) 



