(1)    At its first meeting the board of trustees shall elect by ballot a person of suitable learning, scientific attainments, ability and experience for director of the public museum. The director shall be selected in accordance with and shall be subject to the usual laws, rules and regulations of the city civil service commission. The director shall receive such compensation as shall be fixed by the board of trustees and shall be the secretary of the board.

   (2)   The board shall appoint and fix the compensation of such assistants and employees for the institution as they deem necessary and expedient.

   (3)   The board of the public museum may appoint an acting director whenever, in their discretion, the service of the museum shall require it, who shall also be acting secretary of the board and whose acts as such shall receive full credit.

   (4)   The board of the public museum may appoint as honorary curators persons who have manifested a special interest in the museum or some particular department thereof. Such curators shall perform such duties and have such privileges as may be prescribed in the regulations of the museum, but shall not receive any pecuniary compensation.