The board of directors shall be the corporate authority of such tuberculosis sanitarium district and shall have power to pass and enforce all necessary ordinances, rules and regulations for the management of the property and conduct of the business of such district. Such board shall have power to appoint a secretary and treasurer and such other officers and such employees as may be necessary, including suitable superintendents or matrons, or both. Members of the board of directors shall receive no salary for their services. Salaries of the officers and employees shall be fixed by ordinance.