25 U.S. Code § 158 - Investment of proceeds of lands
The Secretary of the Interior shall invest in a manner which shall be in his judgment most safe and beneficial for the fund, all moneys that may be received under treaties containing stipulations for the payment to the Indians, annually, of interest upon the proceeds of the lands ceded by them; and he shall make no investment of such moneys, or of any portion, at a lower rate of interest than 5 per centum per annum.
R.S. § 2096 derived from act Jan. 9, 1837, ch. 1, § 4, 5 Stat. 135.
For transfer of functions of other officers, employees, and agencies of Department of the Interior, with certain exceptions, to Secretary of the Interior, with power to delegate, see Reorg. Plan No. 3 of 1950, §§ 1, 2, eff. May 24, 1950, 15 F.R. 3174,64 Stat. 1262, set out in the Appendix to Title 5, Government Organization and Employees.