The state land commissioner is hereby expressly authorized and directed to enter into such formal agreement and contract with the secretary of the interior and the secretary of the commerce jointly as such officers are authorized to enter into with said land commissioner under the terms and provisions of the act of the Sixty-ninth Congress, No. 759, H.R. 15827, entitled: “an act to amend Section 2 of an act entitled ‘an act authorizing investigations by the secretary of the interior and the secretary of commerce jointly to determine the location, extent and mode of occurrence of potash deposits in the United States, and to conduct laboratory tests’.”