9 8 



ICE RECESSION IN NEW ENGLAND 



5658 



>A/ 



680 



A 



5692 



Fig. i8 — Curve showing drainage during years 5671-5676 recorded at locality a 

 Catskill, N. Y. It probably marks the first escape eastward, through the Mohawk, 

 of the waters of the Great Lakes which occurred during the Lake Wayne stage. 

 Observe the great thickness of the varves after the drainage. Scale, y 2 actual thick- 

 ness. 



