Cotton. Cotton certificate plan, hearing before subcommittee, 76th Congress, 3d session, on S. 2434, to amend agricultural adjustment act of 1938, as amended, for purpose of regulating interstate and foreign commerce in cotton, providing for orderly marketing of cotton at fair prices in interstate and foreign commerce, insuring to cotton producers parity income from cotton based upon parity price or cost of production, whichever is higher, and for other purposes, Apr. 12, 1940.