1 14 NEW-YOBK STATE COJjLECTION, 



III. NEW- YORK SYSTEM, 



1. POTSDAM SANDSTONE. 



THIKD TABLE CASE. 

 Names. J^ocalities. 



1 Potsdam sandstone (red). Dekalb, St.Lawrence. 

 (grey). Moira, Clinton, 

 (conglomerate). Near Plattsburgli, Clintop, 

 (red). West-Chazy, Clinton, 

 (with ripplemarks). Port Kent, Clinton, 

 (red). West-Chazy, Clinton, 

 (fragmentary, red). Dekalb, St.Lawrence. 



Keeseville, Clinton, 

 (grey). Klip hill, Johnstown, Montgomery, 



Ijewisburgh furnace, Lewis, 

 (conglomerate). Near Lewisburgh furnace, 

 (conglomerate, grey). 



(red). Military road west of Plattsburgh. 

 (metamorphic). 

 (grey), 

 (ripplemarks). 



Near Lewisburgh furnace, Lewis, 

 (conglomerate). Near Lewisburgh furnace, 



Lewisburgh ore bed. 



Lafarge's, near Harrisville. 



West of Johnstown, Montgomery. 



Klip hill, Johnstown, Montgomery, 



Near Lewisburgh furnace, Lewis, 

 (with lingulsa). Birmingham, Clinton, 



