There is hereby appropriated out of the state treasury from funds not otherwise appropriated the sum of three thousand dollars, or so much thereof as may be necessary, to carry out the provisions of this chapter. In case the funds herein provided are exhausted and either party to a proposed arbitration shall tender the necessary expenses for conducting said arbitration, then it shall be the duty of the director of labor and industries to request the opposite party to arbitrate such differences in accordance with the provisions of this chapter.