Owen J. Roberts, Pufahl v. Parks' Estate — Opinion of the Court
“ If the state law requires a claim for an assessment to be prosecuted in an action of debt the receiver cannot elect to bring some other form of action or to sue in equity; conversely, if the law prescribes a suit in equity the receiver cannot bring an action at law. And if under the state statutes demands against a decedent's estate must be proved in a probate court the receiver cannot pursue some other form of action. This is not to say that a state may deny all remedy for the substantive right arising out of the federal statute (see Seabury v. Green, supra) ”
