Joseph McKenna, United States ex rel. Knapp v. Lake Shore Michigan Southern Railway Company…
“ Difference in remedies is conspicuous in our jurisprudence, and some remedies are of that nature that they can be enforced only under exceptional circumstances and under special grants of power. Of this kind is mandamus, and if Congress had intended by the act of 1887 to confer power on the circuit courts to issue mandamus in an original proceeding, Congress would not have employed the language which had been construed from the foundation of the government not to give such jurisdiction. ”
