War Department. Survey for flood control, Choctawhatchee River, Fla., and Ala., and maintenance and operation, Panama Canal, 2 supplemental estimates of appropriations for War Department, fiscal year 1930, namely, survey for flood control, Choctawhatchee River, Fla. and Ala., and maintenance and operation, Panama Canal, toward construction of ferry and highway near Pacific entrance of canal, to remain available until expended.