SECTION 3.  BALLOTS.
   Ballots for the election of councilmen shall be printed in single column form without party marks or designations.  The ballots shall list the candidates under six separate headings, one for each of the five districts and one at large.  The ballot shall carry at the top under its title the instruction "Vote for one candidate from each of the five Districts, irrespective of your residence.  Also vote for not more than two candidates at large."  Under the heading for each district the ballot shall bear the instruction "Vote for not more than one."  Under the heading for councilmen at large, the ballot shall bear the instruction "Vote for not more than two."
   One space shall be left below the printed names for each district and two below the names for candidates at large, to permit voters to write in the names of those for whom they wish to vote.