Codes of fair competition. Invalidity of N. R. A. codes, opinion of Supreme Court, with concurring opinions of Justices Cardozo and Stone, in case of A. L. A. Schechter Poultry Corporation and others v. United States, and United States v. A. L. A. Schechter Poultry Corporation and others, involving question of constitutionality of live poultry code, promulgated under national industrial recovery act; presented by Mr. Black.