Document issued by the Office of the Attorney General of Texas in Austin, Texas, providing an interpretation of Texas law. It provides the opinion of the Texas Attorney General, Gerald Mann, regarding a legal question submitted for clarification: The authority of the State Board of Control to pay a contractor sums expended by him to meet the provisions of Article 5159a requiring that the prevailing wage scale be paid workmen engaged on public works when through mutual mistake of facts the contract between the Board of Control and the contractor provides for a lower rate of pay than the prevailing scale; and related questions.