A Letter from a Gentleman [signing Himself, T.R.] to His Friend in London, in Confutation of the Scurrilous Libell of an Anonymus Blackloist Against the Reverend and Learned Doctor P.R. Upon the Occasion of His Latine Epistle of the Clergie's Obedience to the Sea Apostolick. With an Inclosed to the Libeller Himself