Subsurface Exploration and Sampling of Soils for Civil Engineering Purposes.....

"Subsurface Exploration and Sampling of Soils for Civil Engineering Purposes, Report on a Research Project of the Committee on Sampling and Testing Soil Mechanics and Foundations Division American Society of Civil Engineers, Sponsored by The Engineering Foundation, The Graduate School of Engineering, Harvard University, The Waterways Experiment Station, Mississippi River Commission, Corps of Engineers Department of the Army, Report prepared by M. Juul Havorslev, Edited and printed by Waterways Experiment Station, Vicksburg, Mississippi, November 1948." "The analysis of the large amount of data and preparation of a final and comprehensive report were greatly delayed by the priority of other activities during the war and later because of the cost of preparing the many figures for reproduction. In March 1946 the Corps of Engineers, through the Waterways Experiment Station in Vicksburg, offered assistance in preparation of the final report, engaged the writer to supervise the work, and entered a cooperative arrangement with the committee for editing and printing the report. The figures and final draft of the report were essentially completed in the fall of 1947, and reproduction typing was started in January 1948. Therefore, excepting minor revisions and substitutions, the report represents the status of the research at the end of the year 1947. The research was made possible through the cooperation of many institutions, organizations, individual engineers, and in particular by the generous assistance of The Engineering Foundation, the Graduate School of Engineering of Harvard University, and the Corps of Engineers of the Department of the Army. The Engineering Foundation made generous annual research grants to this project during the five-year period from February 1938 to December 1942. Since then some funds from continuing grants have also been alocated to the project for the purpose of printing this and preceding reports...[from the book foreword by M.J.H. Nov. 1948]