The meetings of the Board of Review shall be held at the times and in accordance with the procedure provided by State law for townships, except that the time for each statutory meeting may be extended, if necessary, to not more than a total of six (6) days, and except that it shall be mandatory for the Board of Review, during its second statutory meeting, to hold at least one public evening session. At the first meeting of the Board of Review it shall choose one of its members as Chairperson, and the City Assessor shall be its Clerk. No City business, other than that which can properly he considered by the Board of Review, shall be transacted between the opening and the closing of any daily session of the Board of Review.