(1)The aldermen shall be fit persons elected by the council.
(2)The number of aldermen shall be one third of the number of councillors.
(3)A person shall not be qualified to be elected or to be an alderman unless he is a councillor or qualified to be a councillor.
(4)If a councillor is elected to, and accepts, the office of alderman he vacates his office of councillor.
(5)The term of office of an alderman shall be six years.
(6)On the ordinary day of election of aldermen in every third year one half of the whole number of aldermen shall go out of office, and their places shall be filled by election.
(7)The half to go out shall be those who have been aldermen for the longest time without re-election.