The size of the Court is not specified; the Constitution leaves it to Congress to set the number of justices.

245 (1829), was a significant Supreme Court decision regarding the definition of the Commerce Clause in Article 1 sec.

Willson, the owner of a sloop licensed under federal navigation laws, broke through a dam built by the Black-Bird Creek Marsh Co. that blocked his passage.

The company brought a case against Willson, claiming that Delaware authorized the building of the dam through a law which was passed under the police power of the state in order to clean up a health hazard, and there was no legislation by Congress dealing with the same subject matter.

Willson claimed that the law authorizing the building of the dam was a violation of the Commerce Clause.

He believed he had a constitutional right to navigate coastal streams, and Delaware's actions were motivated by private profits.