Fig. 21. 



Bridgeton gravel overlying " glass sand near Downer Station, Gloucester 

 County. Note the cobble bed at the base of the Bridgeton, and the deep 

 pocket of gravel extending down into the glass sand. 



Fig. 28. 



Bridgeton formation near Millville, Cumberland County. Note the general 

 fineness of the material. 



