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 



