MARYLAND GEOLOGICAL SURVEY 



CAMBRIAN AND ORDOVICIAN, PLATE XV 



FlG. I. EXPOSURE OF LOWER BEEKMANTOWN LIMESTONE JUST ABOVE THE STONEHENGE 

 MEMBER IN BRICKYARD, EASTERN EDGE OF HAGERSTOWN, MARYLAND. CLAY FOR BRICK 

 MANUFACTURE RESULTS FROM THE WEATHERING OF THE PURER BEDS. 



FlG. 2. BEEKMANTOWN LIMESTONE AT LEGORE QUARRY, LEGORE, MARYLAND. THE WEATHERED 

 OUTCROPS OF THESE STRATA HAVE YIELDED NUMEROUS CEPHALOPODS. 



