Nine-foot Channel from the Great Lakes to the Gulf: Hearings Before the Select Committee on Nine-Foot Channel from the Great Lakes to the Gulf, United States Senate, Sixty-seventh Congress, Fourth Session, on S. 4428, a Bill for the Improvement of Commerce and Navigation, and for Other Purposes. October 15, 16, 17, 19, 20, 22, 23, 26, and 27, 1923. [Sixty-eighth Congress, Second Session, Pursuant to S. Res. 411, 67th Congress, 4th Session, Appointing a Committee to Investigate and Report Upon the Problem for a Nine-foot Channel in the Waterway from the Great Lakes to the Gulf of Mexico. January 13, 14, 15, 16, 20, 21, 22, and 23, 1925. Volume 1-2] ...