The Federal Reporter with Key-Number Annotations, Volume 272: Cases Argued and Determined in the Circuit Courts of Appeals and District Courts of the United States and the Court of Appeals in the District of Columbia, June-August, 1921., legislative document, 1921; (https://digital.library.unt.edu/ark:/67531/metadc38843/m1/40/: accessed December 9, 2018), University of North Texas Libraries, Digital Library, digital.library.unt.edu; .