List of United States Supreme Court cases, volume 221
This is a list of cases reported in volume 221 of United States Reports, decided by the Supreme Court of the United States in 1911. Justices of the Supreme Court at the time of volume 221 U.S. The Supreme Court is established by Article III, Section 1 of the Constitution of the United States, which says: "The judicial Power of the United States, shall be vested in one supreme Court . . .". The size of the Court is not specified; the Constitution leaves it to Congress to set the number of justices. Under the Judiciary Act of 1789 Congress originally fixed the number of justices at six (one chief justice and five associate justices). Since 1789 Congress has varied the size of the Court from six to seven, nine, ten, and back to nine justices (always including one chief justice). When the cases in volume 221 were decided the Court comprised the following nine members: Notable Cases in 221 U.S. Standard Oil Co. v. United States and United States v. American Tobacco Co. Standard Oil Co. v. United States, 221 U.S. 1 (1911), and United States v. American Tobacco Co., 221 U.S. 106 (1911), are a pair of major