7.—Section 33 (which provides for the filling of casual vacancies in the membership of boards of conservators) of the Principal Act is hereby amended by the addition thereto of the following subsection:
“(3) A member of a board of conservators who is disqualified under section 31 shall not be eligible for election to any board of conservators under this section before the date of the election of conservators under section 27 to the last mentioned board next following the date of the disqualification.”
