of groins on wave action, littoral sand transport, and underwater 

 topography in the vicinity of each structure were made. The study was 

 largely comparative, and only the relative changes effected by each 

 type of groin were investigated. 



Key Words - Model/Photographic/Erosion/Accretion/Permeable/lmpermeable/ 

 High/ Low/Scour/ 



"North Carolina Shoreline, Beach Erosion Study" 

 U. S. Army Corps of Engineers, House Document 

 No. 763, 80th Congress, 2nd Session, Dec, 

 1948. 



4812GR0001 



Key Words - House Document/Not Annotated/ 



"Punta Las Marias, San Juan, P. R. , Beach 



Erosion Control Study" 



U. S. Army Corps of Engineers, House Document 



No. 769, 80th Congress, 2nd Session, Dec, 



1948. 



4812GR0002 



Key Words - House Document/Not Annotated/ 



"Winthrop Beach, Mass., Beach Erosion Control 



Study" 



U. S. Army Corps of Engineers, House Document 



No. 764, 80th Congress, 2nd Session, Dec, 



1948. 



4812GR0003 



Key Words - House Document/Not Annotated/ 



"Anna Maria and Longboat Keys, Fla. , Beach 



Erosion Study" 



U. S. Army Corps of Engineers, House Document 



No. 760, 80th Congress, 2nd Session, Dec, 



1948. 



4812GR0004 



Key Words - House Document/Not Annotated/ 



"Palm Beach, Fla., Beach Erosion Study" 



U. S. Army Corps of Engineers, House Document 



4812GR0005 



33 



