William Strong, United States v. Boutwell — Opinion of the Court
“ It required a statute to change the rule, and to avoid injustice, the costs of the writ, when issued and obeyed, were committed to the discretion of the court.And, even if the retirement of the defendant from office and his consequent inability to perform the act demanded to be done does not abate the writ, or necessitate its discontinuance, there is still an insuperable difficulty in the way of our directing the substitution asked for. We can exercise only appellate power. ”
