II-D "Notes on Comparisons of Echo Sounders" 



An article covering basic operating principles of echo 

 sounders, listing of various features by which different 

 models of echo sounders can be compared, a specific com- 

 parison of two types of commercial echo sounders pointing 

 out essential differences, and a discussion of difficul- 

 ties in making echo soundings over unconsolidated bottoms. 



II-C "Basic Knowledge of Shore Phenomena" by Dr. Martin A. Mason 



The second of a series of four articles delivered as 

 lectures in the Advanced Course of the Engineers School 

 at Fort Belvoir, Va. A brief outline of shore phenomena 

 and discussion of the elements of the philosoply on which 

 methods of solution are based are presented. Concepts of 

 the physiographic unit and material-energy balance within 

 the unit are introduced. 



"The Coastline of England and Wales" 



A brief review of a book of this title by J. A. Steers, 

 President of St. Catherine's College, England and Cambridge 

 University Lecturer in geography. Mr. Steer's book is 

 cited as a comprehensive physiographical treatment of the 

 English coast. 



"Beach Erosion Studies" 



Listing of cooperative studies completed since last issue 

 of the Bulletin and of those still in progress. 



"Beach Erosion Literature" 



Abstracts of acquisitions to the Board's Library. 



VOLUME 2 - 1948 



ISSUE NO. 1-1 January 1948 



II-C "Recent Storm Damage Along the Coasts of Florida and Mississippi' 

 E 



Description and discussion, including photographs, of 

 damages on the Florida and Mississippi coasts resulting 

 from two hurricanes occurring in September 1947. 



48 



