ILLUSTRATIONS. 



Plate I. Landscape lookmg westwai d across the upper portion of Nariagansett Bay, m tlie low- 

 land of the Carboniferous area, to the base-leveled area of mainly try sfcalline and pre- 

 Carbomferoua rocks , 7 



Fig 1. Diagram of assumed conditions of compressive stram in rocks m a basm of accumula- 

 tion 1^ 



2. Theoretical plan of the great folds of the Narragansett Basm 27 



