In addition to exercising the powers conferred upon him elsewhere by these rules. the President shall preside at the plenary meetings of the Conference. declare the opening and closing of each meeting. direct the discussion. ensure observance of these rules. accor<i the right to speak, promote the achievement of general agreement, put questions to the vote and announce decisions reached by general agreement or taken by vote. The President shall rule on points of order and, subject to these rules, shall have complete control of the proceedmgs and over the maintenance of order thereat The President may propose to the Conference the closure of the list of speakers. a lim1ta1ion on the time to be allowed to speakers and on the number oft1mes each representative ma} ,peak on a question, the adjourn-