§ 50. Appeals to council of Seneca nation. Within twenty days after the decision of a peacemakers' court of the Seneca nation, an appeal may be taken to the council of such nation, by serving upon the adverse party and upon the peacemakers before whom the action or proceeding was heard a notice of such appeal. The peacemakers shall certify the evidence taken before them to the council. The appeal shall be heard by at least a quorum of the council, and shall be decided upon the evidence taken in the peacemakers' court, and such additional evidence as the council may determine to hear. Upon the hearing any party shall have the right to appear either in person or by counsel and argue the merits of the case. The decision of the council shall be conclusive.