William R. Day,
Blumenstock Bros Advertising Agency v…
“ The Anti-Trust Act, it is hardly necessary to say, derives its authority from the power of Congress to regulate commerce among the states. It declares unlawful combinations, conspiracies, and contracts and attempts to monopolize which concern such trade or commerce. It follows that if the dealings with the defendant, which form the subject-matter of complaint, were not transactions of interstate commerce, the declaration states no case within the terms of the act. ”
