[230] Treat v. White, 181 U.S. 264 (1901).
[231] Flint v. Stone Tracy Co., 220 U.S. 107 (1911).
[232] National Paper & Type Co. v. Bowers, 266 U.S. 373 (1924).
[233] Billings v. United States, 232 U.S. 261, 282 (1914).
[234] Steward Machine Co. v. Davis, 301 U.S. 548 (1937); Helvering v. Davis, 301 U.S. 619 (1937).
[235] Bromley v. McCaughn, 280 U.S. 124 (1929).
[236] Haavik v. Alaska Packers' Association, 263 U.S. 510 (1924).
[237] Alaska Fish Salting & By-Products Co. v. Smith, 255 U.S. 44 (1921).
[238] La Belle Iron Works v. United States, 256 U.S. 377 (1921).
[239] Helvering v. Northwest Steel Mills, 311 U.S. 46 (1940).