14 NEW-YOBK STATE COLLECTION. 



III. NEW- YORK SYSTEM. 

 1. POTSDAM SANDSTONE. 



THIRD TABLE CASE. 

 Names. Localities. 



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

 (grey). Moira, Clinton, 

 (conglomerate). Near Plattsburgh, Clinton, 

 (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, 



Lewisburgh 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 lingulas). Birmingham, Clinton. 



2 



do 



3 



do 



4 



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5 



do 



6 



do 



7 



do 



8 



do 



9 



do 



10 



do 



11 



do 



12 



do 



13 



do 



14 



do 



15 



do 



16 



do 



17 



do 



18 



do 



19 



do 



20 



do 



21 & 



22 do 



23 



do 



24 



do 



25 



do 



