Principles of Underwater Sound

Rose colored wraps published by the Committee on Undersea Warfare NRC. Index and b/w charts and graphs among 295 pages. Originally a restricted document, now stamped "unclassified" here, there, everywhere (title pg, preface, contents and pgs., 1-3.  Paperclip rust stains on page tops 246-252.  Spine is worn but holding tight. "Due to WWII urgencies the National Research Council (NRC) recommended a laboratory be established to cover the fundamentals of submarine warfare.  San Diego was chosen and worked with the Woods Hole Oceanographic Inst. and U.S. Navy."  This is a SUMMARY TECHNICAL REPORT.