Additional judges, United States district courts : hearings before the Committee on the Judiciary, United States Senate, Sixty-seventh Congress, first session on S. 2432, a bill to amend sections 13, 14, 15, 17, and 18, as amended, of the Judicial Code : S. 2433, a bill to aid in the disposal of the arrears of business on the several district courts of the United States, and for other purposes and S. 2523, a bill to amend sections 13, 14, 15, 16, 17, and 18, as amended, of the Judicial Code, October 5 and 11, 1921