SECTION 4.13.   MEETINGS OF COUNCIL.
   Council shall meet at such times as may be prescribed by its rules, regulations, by-laws, resolution or ordinance, except that it shall hold regular meetings at least once during each calendar month. All regular meetings shall be held in Council Chambers and shall be open to the public.
   Special meetings of Council may be called as provided by its rules, regulations, by-laws, ordinance or resolution. In the absence of any such provisions, special meetings may be called by a majority vote of Council taken at a regular or special meeting thereof, or shall be called by the Clerk of Council upon the written request of the Mayor, or the President of Council or any three (3) members of Council. Notice in writing, of each special meeting called shall state the date and time and subject or subjects to be considered, and no other subject or subjects shall be considered thereat. Such written notice shall be served by the Clerk of Council upon the Mayor and each member of Council, either personally or by leaving a copy thereof at his usual place of residence, not less than twenty-four (24) hours preceding the meeting. In the event that a special meeting is called by a vote of Council taken at any meeting from which a member of Council is absent, written notice of such meeting shall be given such absentee in the manner and form herein provided. The Mayor and any Councilman shall be deemed conclusively to have waived such notice by his attendance at any such meeting. All special meetings of Council shall be held in Council Chambers and be open to the public.