bottom. It is presently planned that the major portions of these 

 reports will be reproduced as Technical Ifemorandums of the Board. 



V. New York University, Contract No. DA-li9-055'-eng-32, Quarterly 

 Progress Report Dated 2 April 195h 



The spectriun analyser for wave records has been completed and 

 shipped to the Board where it will be set up for use. A draft of the 

 paper on the statistical analysis of hindcast data on the North 

 Atlantic coast is being prepared. 



VI. 



Massachusetts Institute of Technology. Contract No. DA-l4.9"Q^5-eng-l6, 

 6th Progress Report dated 15 June 19Sh 



Additional data was gathered on the msan (sand) particle velocity 

 along the beach and its relation to the wave and depth characteristicsj 

 and on the location of the null point (point separating the areas of 

 onshore and offshore movement) and its relation to wave characteristics. 



VII. Waterways Experiment Station, Vicksburg, Mssissippi - 



Wave Run-up Study; Overtopping tests on the Lake Okeechobee levee 

 section (1 on 3 smooth slope ) with an expanded series of wave conditions 

 were conpleted for crown elevations through 12 feet and a water depth of 

 29,$ feet. 



Effect of Inlets on Adjacent Beaches; An additional test series 

 has been initiated, everything being the same as for the previous test 

 except that the lagoon depth in back of the inlet is relatively shallow 

 (about th6 same as the inlet depth) instead of being very deep. 



VIII. Beach Erosion Board, Research Division, Project Status Report for 

 Cjuarter ending 18 June 195U 



In addition to the research projects under contract to various 

 institutions which ai^ reported on above, the Research Division of the 

 Beach Erosion Board is carrying out certain projects with its own 

 facilities. The main unclassified projects have been described in 

 previous numbers of the Bulletin, and a short description of some of 

 the work acconplished through the last quarter is given below. 



Study of Effect of Tsunamis; Additional tests have been performed 

 to relate the wave height at the shoreline to the deep water height and 

 to the run-up. Run-up on these idealized shore structures has also 

 been measured and related to the deeper water wave characteristics. 



2.1 



