Filling of vacancies

All casual vacancies among the member (other than ex-officio members) of any authority or other body of the University shall be filled, as soon as may be, by the person or body who appointed, elected or co-opted the members whose place has become vacant and the person so appointed, elected or co-opted to the casual vacancy shall be a member of such authority or body for the residue of the term of the person whose place he fills.