Before a certificate of incorporation is granted under this Part of this Act, trustees of the charity must have been effectually appointed to the satisfaction of the Commissioners.

Where a certificate of incorporation is granted vacancies in the number of the trustees of the charity shall from time to time be filled up so far as required by the constitution or settlement of the charity, or by any conditions or directions in the certificate, by such legal means as would have been available for the appointment of new trustees of the charity if no certificate of incorporation had been granted, or otherwise as required by such conditions or directions.