ILLUSTRATIONS 



PLATE FACING PAGE 



I. Map showing the Distribution of the Upper Cretaceous Deposits 



of Maryland 23 



II. Fig. 1. — View of White Rocks, Patapsco River, showing indurated 



sandstone ledges of the Raritan formation 32 



Fig. 2. — View of Rocky Point, mouth of Back River, showing in- 

 durated sandstone bed in the Raritan formation 32 



III. Fig. 1. — View of glass sand quarry near Stony Point, showing 



Raritan formation unconformably overlain by the Magothy 



formation 56 



Fig. 2. — View of " Cape Sable " (North Ferry Point), Magothy River, 

 showing type section of Magothy formation, lignite bed with 

 amber pellets at base 56 



IV. Fig. 1. — View at Round Bay, Severn River, showing Magothy 



formation overlain by Matawan formation 64 



Fig. 2.— Nearer view of same locality, showing contact between the 



Magothy and Matawan formations 64 



V. Fig. 1. — View of lower White Bank, Elk Neck, showing Patapsco, 



Raritan, and Magothy formations 72 



Fig. 2. — View of Grove Point showing Magothy formation overlain 



by Matawan formation 72 



VI. Fig. 1. — View along Chesapeake and Delaware Canal, showing 



Matawan formation overlying Magothy formation 88 



Fig. 2. — View on line of Chesapeake Beach Railroad near Central 



Avenue, showing Magothy formation overlain by Monmouth 



formation 88 



VII. Fig. 1. — View near Brightseat, Prince George's County, showing 



contact of the Magothy and Monmouth formations 108 



Fig. 2. — View near Brightseat, Prince George's County, showing 



Monmouth formation overlain by Aquia formation 108 



