Eighteen Sermons Preached in Oxford 1640: Of Conversion, Unto God. Of Redemption, & Justification, by Christ. By the Right Reverend James Usher, Late Arch-bishop of Armagh in Ireland. Published by Jos: Crabb. Will: Ball. Tho: Lye. Ministers of the Gospel, who Writ Them from His Mouth, and Compared Their Copies Together. With a Preface Concerning the Life of the Pious Author, by the Reverend Stanly Gower, Sometime Chaplain to the Said Bishop