The board of trustees shall make and promulgate rules and regulations pertaining to the following subjects:
(a) For the government and management of the internal affairs of the Hospital, both administrative and professional and for the maintenance of discipline and efficiency therein.
(b) Governing the admission of patients, their care and attention while in the Hospital, and their discharge therefrom; provided, that no distinction as to race, nationality or creed shall be made in admission of patients to the Hospital, but all rules for the admission of patients shall be limited by the capacity and accommodations of the Hospital.
(c) Governing the admission of physicians and surgeons to the staff of the Hospital, and governing the practice therein in particular cases, of physicians and surgeons who are not members of the regularly organized staff.
(1947 Code §7.13)