* Act of June 30, 1914 (P.L. 63-122, Ch. 131, 38 Stat. 430, as amended; 16 U.S.C. 504)

All moneys received as contribu-tions toward cooperative work in forest investigations, or the protec-tion and improvement of the nation-al forests, shall be covered into the Treasury and shall constitute a spe-cial fund, which is hereby appropri-ated and made available until ex-pended, as the Secretary of Agri-cul-ture may direct, for the payment of the expenses of said investiga-tions, protection, or improvements by the Forest Service, and for refunds to the contributors of amounts theretofore or hereafter paid in by them in excess of their share of the cost of said investigations, protection or improvements. (16 U.S.C. 498)

That the provisions of section 5 of Title 41 [U.S. Code] shall not apply to any purchase by the Forest Service of forest tree seed or cones or of forage plant seed where the amount involved does not exceed $10,000, nor to any purchase of forest-tree nursery stock when the amount involved does not exceed $500, whenever, in the discretion of the Secretary of Agriculture, such method is in the public interest. (16 U.S.C. 504)