Sec. 451. “Agricultural products” defined. 452. Supervision of division of cooperative marketing. 453. Authority and duties of division. 454. Advisers to counsel with Secretary of Agriculture; expenses and subsistence. 455. Dissemination of crop, market, etc., information by cooperative marketing associations. 456. Rules and regulations; appointment, removal, and compensation of employees; expenditures; authorization of appropriations. 457. Separability.