out by a system of parallel lines thereby causing wave 

 crests from less obvious directions to stand out which 

 could otherwise go unnoticed. 



II-C "Developments in the Science of Coastal Engineering" by 



E Captain Peter Somers, Executive Officer, Beach Erosion Board 



A brief general description of the physical factors in- 

 volved in solution of shore problems, functional methods 

 of correcting the problem, and research studies to provide 

 new knowledge of these factors and functions. 



II-E "Notes on Determination of Stable Underwater Breakwater 

 Slopes" by Kenneth Kaplan, Beach Erosion Board 



A brief discussion of the applicability of the original 

 Iribarren formula to the underwater slopes of rubble 

 mound breakwaters. 



II-A "A New Method for the Graphical Construction of Wave 



Refraction Diagrams" by T. Saville, Jr. and K. Kaplan, 

 Beach Erosion Board 



The new method is developed and discussed in detail in- 

 cluding drawings of protractors or overlays to be used 

 in its application. An example case ivith results by other 

 methods as well as the new method of Saville and Kaplan 

 is presented and the relative accuracy discussed. 



"Beach Erosion Studies" 



Summary of a completed cooperative study report on State 

 of Connecticut - Connecticut River to Hararaonasset River 

 is presented. Listings of all completed cooperative stud- 

 ies and those still in prepress are also presented. 



ISSUE NO. 4 - 1 October 1952 



II-A "Description cuid Operating Instructions for Wave Gage WH-1" 

 D 



Detailed description (including photographs) and operating 

 instructions for an underwater pressure response type of 

 wave gage are presented. The gage is designed for use in 

 water depths up to 60 feet and does not require a structure 

 to support it. 



64 



