| http://www.w3.org/ns/prov#value | - The fourth section provides that the supervisor shall establish a system of grades, weights, and measures for wheat 'and shall in a general way investigate and supervise the marketing of same with a view of preventing unjust discrimination, unreasonable margins of profit, confiscation of valuable dockage, fraud and other unlawful practices'; declares that, whenever grades, weights, and measures fo
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