The Quorum for any Meeting of the Guardians shall be Five; and the Chairman of the Guardians, or any Three or more of the Guardians, may call any Special Meeting, but no Special Meeting shall be held unless at least Two clear Days Notice thereof, stating the Objects of the Meeting, be sent by the Law Clerk by Post to each Guardian who has made and signed the Declaration by this Act required, and who has not ceased to be a Guardian.