OP AUTS AND SCIENCES. 



217 



VERTICAL SECTION [LAKE CHAMPLAIN] IN VERMONT, CANADA, 

 AND NEW YORK, 10,140 Feet. 



Note. — Plane of unronformitj- indicatcj by double and triple dividing lines. 



The section given is of the beds immediately above tlie chlorite 

 schists, the conglotnerates, and the talcose slates which form the upper 

 portion of the Lower Taconic, 



