9The chairman of a board shall be elected by the board from the members of the board.
10The election of the chairman shall be the first business transacted at the first meeting of the board and, thereafter, at the first meeting of the board held after each reconstitution of the board, and at any such meeting until the chairman is elected the person by whom under paragraph 8 the meeting was convened, or the proper officer of the board, as the case may be, shall preside.