Soil mechanics terms and symbols used herein, in general, conform to those 

 published in 1958 by the joint Committee on Glossary of Terms and Definitions in 

 Soil Mechanics of the American Society of Civil Engineers (ASCE) and the American 

 Society for Testing Materials (ASTM). Definitions in accordance with this glossary 

 are referenced by the letters ASCE in parentheses. The word "sediment" is used in 

 synonymy with the word "soil ." Notation is given in Table 1 . 



It is my pleasure to acknowledge the cooperation of BUDOCKS personnel in this 

 investigation; Indeed, it would have been extremely difficult without their assistance. 

 Mr. L. A. Palmer, Soil Mechanics and Paving Consultant (now retired) and Mr. P. P. 

 Brown of BUDOCKS made laboratory facilities available to the Hydrographic Office 

 and generously contributed In many ways to this study. All tests and measurements 

 given in this report, unless otherwise noted, were made in the BUDOCKS Soil 

 Mechanics Laboratory under the capable direction of Mr. C. M. Yeomans. I am 

 Indebted to Mr. Yeomans for his continued Interest in this work, many excellent 

 suggestions on how to improve different phases of the study, and for numerous knowl- 

 edgeable discussions that constituted a practical education In soil mechanics. 



Helpful comments and suggestions to a preliminary copy of the manuscript were 

 made by Dr. R. J. Hurley, Bell Telephone Laboratories, Whippany, N. J., Messers. 

 Brown and Yeomans of BUDOCKS, Mr. G. H. Keller of the Hydrographic Office, and 

 Mr, D. G. Moore and Dr. E. L. Hamilton, Navy Electronics Laboratory. I appreci- 

 ate the opportunity afforded by the Navy Electronics Laboratory to study and report 

 these data, and for considerable drafting and typing services. I, of course, assume 

 responsibility for all conclusions resulting from this study. 



