An Act amending the act of June 3, 1937 (P.L.1333, No.320), known as the Pennsylvania Election Code, in dates of elections and primaries and special elections, further providing for affidavits of candidates; in nomination of candidates, further providing for affidavits of candidates, for examination of nomination petitions, certificates and papers and return of rejected nomination petitions, certificates and papers, for filling of certain vacancies in public office and for substituted nominations to fill certain vacancies; in ballots, further providing for form and printing of ballots; and replacing references to "justice of the peace" with "magisterial district judge."