Any Presbyterian church society heretofore incorporated, or whose corporate term of existence has heretofore expired by limitation, or the trustees of which have heretofore exercised the powers of a body corporate, may, by a 2/3 vote of its qualified members, present and voting, expressed at a meeting called as provided in section 11 hereof, place itself under the provisions of this act the same as if originally incorporated under it, and by executing articles of association as provided in section 11 in case of amendment, and causing the same to be recorded as is further required in case of such amendment.