On October 14, 1940, and subsequent to the enactment of former section 451 et seq. of this title, Congress passed the Nationality Act of 1940 [former section 501 et seq. of this title] for the purpose of consolidating and restating the laws of the United States upon citizenship, naturalization and expatriation. Said act contained further provisions relating to registry of aliens [former sections 728 and 746 (l) of this title], and former section 504 thereof, in addition to certain specific repeals, provided that all acts or parts of acts in conflict therewith were thereby repealed.