carried out on the interpretation of the analyzer analysis, and a report 

 is being prepared for users of this analyzer. Arrangements were also made 

 for installation of a tape recorder on one of the offshore drilling plat- 

 forms for the California Oil Company in the Gulf of Mexico to obtain data 

 for spectrum analysis. Arrangements were initiated for a wave gage installa- 

 tion on the new Coast Guard tower off Buzzards Bay which is being constructed 

 as a replacement for an offshore lightship. This gage is under construction, 

 and will be somewhat unique in that it is a double-range type gage, having a 

 range of 0-15 feet in 4-inch increments and a range of 0-45 feet in 1-foot 

 increments. The gage will be programmed to obtain a record from each range 

 every 30 minutes. Drafting of a report on the design, construction, cali- 

 bration, and use of the various wave gages of the Board was continued. This 

 report will include a description not only of the normal pressure gage, and 

 fresh and salt water staff gages, but also a new type staff gage designed 

 for use in estuaries and bays subject to fresh water flow where accurate 

 measurements are needed over a wide range of salinities. 



(j) Regional Studies. 



A report "Geomorphology of the South Shore of Long Island, New York" 

 has been prepared (Technical Memorandum No. 128). This report presents a 

 discussion of the geologic factors which have influenced the development of 

 the south shore of Long Island and includes a graphic presentation of the 

 shoreline history. All readily available survey data and comparative volu- 

 metric changes are tabulated in appendices. Compilation of georaorphological 

 and littoral material data for the coastal sector from Cape Henlopen, Dela- 

 ware to Cape Charles, Virginia is under way, as is compilation of geomorpho- 

 logical data for the Atlantic coast of Georgia and Amelia Island, Florida, 

 and the Gulf Coast of Florida from the Suwannee River to the Alabama State 

 line. 



(k) Technical Report No. 4, "Shore Protection Planning and Design". 



A continuing study is being made to improve and supplement present 

 chapters of this publication. Preparation of revisions and addenda were 

 completed, and the draft of a reprint edition was reviewed and approved by 

 members of the Beach Erosion Board. This new edition has gone to press, 

 and publication is expected in the early fall. (Availability of this 

 reprint publication is indicated elsewhere in this Bulletin.) Major re- 

 visions and additions involve sections on wave run-up, hurricane waves and 

 surge, design criteria for rubble mound stability, and wave forces on piles. 



(1) Re-examination of Beach Protection Projects. 



A continuing program is being carried out on the re-examination of 

 artificially nourished beaches to determine the effectiveness of the fill 

 material within the beach zones, and to better establish the factors upon 

 which the desired characteristics of fill material are based. Continuing 

 studies of other projects constructed following Beach Erosion Control 



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