The board may use of the funds appropriated for the maintenance of the New Mexico school of mines [New Mexico institute of mining and technology] such sums as may be necessary for the maintenance of the bureau hereby created, not to exceed, however, such sums as may be appropriated for the New Mexico school of mines [New Mexico institute of mining and technology] from the fund provided by Section 35 of Senate Bill No. 2775 United States congress. (Public – No. 146 – 66th congress.)