PREFACE 



This report is published to describe an efficient and effective system to 

 obtain cores of unconsolidated sediments in saturated beach and back-barrier 

 environments. The work was carried out under the coastal sedimentation re- 

 search program of the U.S. Coastal Engineering Research Center (CERC) . 



The report was prepared by Kenneth Finkelstein, Geologist, and Dennis Prins, 

 Physical Scientist, under the general supervision of Dr. C.H. Everts, Chief, 

 Engineering Geology Branch, Engineering Development Division. The authors ac- 

 knowledge Dr. R. Hobson and L. Hulmes for their help with the design of the 

 coring system, and S.J. Williams for his review of the report. 



Comments on this publication are invited. 



Approved for publication in accordance with Public Law 166, 79th Congress, 

 approved 31 July 1945, as supplemented by Public Law 172, 88th Congress, 

 approved 7 November 1963. 



TED E. BISHOP 

 Colonel, Corps of Engineers 

 Commander and Director 



