Pensacola Telegraph Co. v. Western Union Telegraph Co.

The case involves a conflict between a Florida state-granted exclusive franchise for telegraph operations in two counties and federal authorization under the Act of July 24, 1866. Pensacola Telegraph Company held an exclusive franchise from Florida since 1866. Western Union Telegraph Company, a New York corporation, obtained rights through assignment from a railroad company and accepted the terms of the federal act. The Supreme Court held that Congress has power under the Commerce Clause to regulate telegraph as an instrument of interstate commerce and postal service. The federal act authorizing telegraph companies to use post-roads prevails over conflicting state law, making Florida's exclusive franchise inoperative against Western Union. The Court affirmed the dismissal of Pensacola's injunction bill.

A state-granted exclusive franchise for telegraph operations conflicted with federal authorization for another telegraph company to use post-roads. The Supreme Court held that Congress's Commerce Clause power regulates telegraph as interstate commerce, rendering the state franchise inoperative against the federally authorized company. The federal act prevails, and dismissal of the injunction was affirmed.

• Commerce clause extends to new technologies like telegraph
• Federal law supersedes conflicting state law under Supremacy Clause
• Act of 1866 applies to all post-roads, not just public domain

• Case involves interpretation of federal statutes and constitutional powers of Congress

• Conflict between Florida statute and federal act
• Exclusive franchise rights under state law