Title: Socinianism Unmask'd. A Discourse Shewing the Unreasonableness Of a Late Writer's Opinion Concerning the Necessity of only One Article of Christian Faith; And of his other Assertions in his late Book, Entituled, The Reasonableness of Christianity as deli- ver'd in the Scriptures, and in his Vin- dication of it. With a Brief Reply to another (pro- fessed) Socinian Writer