An Act amending the act of June 3, 1937 (P.L.1333, No.320), known as the Pennsylvania Election Code, in county boards of elections, further providing for powers and duties of county boards; in qualifications of electors, further providing for qualifications of electors at primaries; in party organization, further providing for only enrolled electors to vote at primaries or hold party offices; and, in nomination of candidates, further providing for candidates to be nominated and party officers to be elected at primaries.