(a) A special meeting of the Board of Aldermen may be called at any time by the Mayor. Further, a special meeting shall be called by the Mayor on petition by a majority of the Board of Aldermen.

(b) At least 24 hours notice shall be given of each special meeting of the Board of Aldermen, except in cases of public emergency declared by the Mayor.

(c) Notice of special meetings shall be served on the aldermen by some person appointed for such purpose by (a) delivering to each aldermen, a true and attested copy of such call, (b) by leaving such copy at the place of his or her usual abode, or (c) by personal notice from the Mayor in case of declared public emergency.

(d) The Board shall first consider at the special meeting, the matter or purpose set forth in the notice for such meeting, and then any other business which may properly come before the Board of Aldermen.