When any such irrigation district shall have duly executed and tendered to the state of Washington the contract of indemnity as it is herein empowered to do, the director of ecology is hereby authorized, empowered and required to sign and execute such contract on behalf of the state of Washington. After having received any such contract of indemnity from any such irrigation district the said director of ecology is hereby authorized, empowered and required to enter into a contract on behalf of the state of Washington with the United States relating to the land settlement in such district if such contract shall be presented, or tendered by the United States, which contract, if entered into on or before June 30, 1926, shall have the same terms and provisions of that certain contract submitted to the state of Washington under authority of the act of congress approved March 3rd, 1925, entitled "An Act making appropriations for the Department of the Interior for the fiscal year ending June 30, 1926, and for other purposes." PROVIDED, That the liability of the state of Washington to the United States under such contract, if entered into on or before June 30, 1926, shall be limited to three hundred thousand dollars and be subject to appropriation therefor being made by the legislature. PROVIDED, FURTHER, That the said director of ecology or any other officer of the state of Washington shall not enter into any such contract with the United States after June 30, 1926, unless and until any such contract shall have been presented to the legislature by the governor through the director of ecology and approved by a joint resolution of the legislature, which resolution shall be passed by a constitutional majority of both branches of the legislature by roll call.