Letter from the Secretary of the Army transmitting a letter from the Chief of Engineers, Department of the Army, dated July 19, 1962, submitting a report, together with accompanying papers and an illustration, on the Great Lakes Harbors Study -- Interim report on Saginaw River, Michigan, requested by resolutions of the Committees on Public Works, United States Senate and House of Representatives, adopted May 18, 1956 and June 27, 1956.