§ 182-a. Increasing number of trustees. The number of trustees may be increased to not exceeding eleven by said board of trustees at any legal meeting of the members, whereupon a certificate of such increase shall be made, signed, acknowledged and filed by the existing trustees in the manner provided by section one hundred and eighty for the execution and filing of the certificate of incorporation, except that the consent and approbation of a justice of the supreme court shall not be necessary to the filing of such certificate. The additional trustees authorized by such increase shall be supplied in the same manner as vacancies in the original board of trustees; but there shall always be at least a majority of the board who are not ministers of the gospel or priests of any denomination.