Okla. Stat. tit. 59, § 602

Said appropriations herein made shall be used by the Board of Examiners in Optometry for the necessary expenses of operation of said Board during the fiscal years set out in Section 1 of this act, including expenses for personnel services, salary of secretary- treasurer of the Board, per diem of members of the Board of Examiners, and all the expenses of the maintenance and operation deemed reasonably necessary or desirable in the operation of the business of said Board. Laws 1949, p. 659, § 2; Laws 1951, p. 271.