Howell, Thomas M. No. 5610, in circuit court of appeals for 7th circuit, Thomas M. Howell v. Henry A. Wallace, Secretary of Agriculture, and Henry A. Wallace, Secretary of Agriculture, Homer Cummings, Attorney General, and Daniel C. Roper, Secretary of Commerce, as commission created under grain futures act, on petition for review of order of Commission under Grain Futures Act; brief for respondents.