Section, acts Mar. 3, 1925, ch. 426, § 5, 43 Stat. 1111; Mar. 3, 1927, ch. 355, 44 Stat. 1388; Sept. 1, 1937, ch. 895, 50 Stat. 887; July 26, 1947, ch. 343, title II, § 205(a), 61 Stat. 501, authorized Secretaries of Army and Navy to designate representatives to cooperate with Department of the Interior to effectuate the purposes of this chapter, and gave them the right of access to plants, data, and accounts. See section 7 of act Mar. 3, 1925, as amended by Puspan. L. 86–777, which is classified to section 167e of this title.