koCKB. 15 



THIRD WALL CASE; 



48 Potsdam sandstone (lowest layer breeciated). Dekalb, St.Lawrence. 



(massive). Potsdam, St.Lawrence. 

 (ripplemarks). Keeseville, Essex, 

 (with casts of mud furrows). 



Washington county, 

 (lowest layer conglomeritic). Lewisburgh, Lewis. 



Lewisburgh, Lewis. 



Dekalb, St.LaAvrence. 



Washington county. 



Chazy, Clinton. 



Keeseville, Essex. 



Gralway, Saratoga, 

 (with fragments of impure limestone). Chazy. 

 (columnar from artificial heat). KeeseviUe, Essex. 



