Text this: Beach erosion study, Coronado, Calif. Letter from the Secretary of War transmitting a letter from the Acting Chief of Engineers, United States Army, dated September 30, 1941, submitting a report, together with accompanying papers and illustrations, on a beach erosion study, Coronado, Calif., authorized by the River and Harbor Act approved July 3, 1930, and by act of Congress approved June 26, 1936.