In dates of elections and primaries and special elections, further providing for special elections for United States Senator and nominations and for nominations for special election for Representative in Congress, Senator and Representative in the General Assembly and member of council or legislative body of cities, boroughs, towns and townships; and, in nominations of candidates, further providing for number of signers required for nomination petitions of candidates at primaries, for nominations by minor political parties, for place and time of filing nomination petitions and filing fees and for nominations by political bodies, repealing provisions relating to filing fee and further providing for examination of nomination petitions, certificates and papers and return of rejected nomination petitions, certificates and papers and for vacancy in party nomination by failure to pay filing fee or for failure to file loyalty oath.