and for construction, including necessary personnel, $296,499,000, to remain available until expended, of which not to exceed $10,000 shall be for services as authorized by 5 U.S.C. 3109 . National gallery of art Salaries and expenses For the upkeep and operations of the National Gallery of Art, the protection and care of the works of art therein, and administrative expenses incident thereto, as authorized by the Act of March 24, 1937 (50 Stat. 51), as amended by the public resolution of April 13, 1939 (Public Resolution 9, Seventy-sixth Congress), including services as authorized by 5 U.S.C. 3109