22-1-310. Chief librarian -- personnel -- compensation. The board of trustees of each library shall appoint and set the compensation of the chief librarian who shall serve as the secretary of the board and shall serve at the pleasure of the board. With the recommendation of the chief librarian, the board shall employ and discharge such other persons as may be necessary in the administration of the affairs of the library, fix and pay their salaries and compensation, and prescribe their duties.