Water-hyacinth Obstructions in the Waters of the Gulf and South Atlantic States, Letter from the Secretary of the Army Transmitting a Letter from the Chief of Engineers, Department of the Army, Dated June 1, 1956, Submitting a Interim Report, Together with Accompanying Papers and Illustrations, on a Review of Reports...in Partial Response to the Authority Contained in the River and Harbor Act Approved March 2, 1945, on Lake Okeechobee and Its Tributary Streams, Flordia, with a View to Removing the Water-hyacinth, November 8, 1956.--Referred to the Committee on Public Works and Orderd to be Printed, with Illustrations, Pursuant to Public Law 641, 84th Congress