John King Manufacturing Company v…
“ Bruffy, this court repeatedly has held that an order of a state commission, made in the exercise of delegated legislative authority, is a statute of the state in the sense of the jurisdictional provision. Excerpts from some of the cases-all brought here from state courts on writs of error-will suffice to show the course of decision.'Such an order, being legislative in its nature and made by an instrumentality of the state, is a state law within the meaning of the Constitution of the United States and the laws of Congress regulating our jurisdiction.' Lake Erie & Western R. R. Co. ”
