Stanley Matthews, Ex Parte Boyd — Opinion of the Court
“ But even conceding that such enlargements of the powers of courts of law do not deprive courts of equity of jurisdiction theretofore exercised, no one has ever supposed that they were illegitimate intrusions upon the exclusive domain of equity, or produced any confusion of boundaries between the two systems. No one has ever questioned the authority of Congress to make parties to a suit competent witnesses, or to confer upon courts of law power to compel the production of books and papers, because discovery was an ancient head of equitable jurisdiction. ”
