Mississippi River and tributaries, Vicksburg-Yazoo area, Miss., letter from chief of engineers, Army, submitting report on review of provisions of project for flood control and improvement of lower Mississippi River authorized by act of May 15, 1928, as amended by act of July 24, 1946, with respect to adopted improvement for Vicksburg-Yazoo area, with view to determining whether any modification of plan for such improvement is advisable at this time because of changed physical or economic conditions.

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