upon the discharge of their duties, and shall be divided into five classes, as nearly equal in number as may be, and the terms of office of said classes shall expire in successive years, so that in each year the members of one class only shall be elected for the full term of five years. Whenever the number of the Board of Trustees shall be increased, the additional members shall be elected by the Board and each of the newly elected Trustees shall be assigned by the Board to one of said classes, and his term shall expire with that of the class to which he is assigned. In case a vacancy shall occur in the Board of Trustees, by reason of the enlargement of its membership or otherwise, the existing Trustees may fill the same for the unexpired term, at any regular or special meeting of the Board.
Section 2. The officers of the corporation shall be a president, three (3) vice-presidents, a secretary and treasurer, all of whom shall be elected by the Trustees and shall hold their respective offices for one year, and until their successors shall be elected, and shall enter upon the discharge of their duties. The offices of secretary and treasurer may be held by the same person.
Section 3. Five trustees shall constitute a quorum of the Board of Trustees, and, at all meetings of the corporation, thirteen members
