19.1    The Board may, by a majority vote, repeal, amend or re-enact these By-Laws, provided that every such repeal, amendment or re-enactment is sanctioned at a meeting of Members duly called for the purpose of considering the said By-Laws by an affirmative vote of Members present and provided that the repeal or amendment of these By-Laws shall not be enforced or acted upon until the approval of the Members have been obtained.