1. Two Discourses. The First, Concerning the Spirit of Martin Luther, and the Original of the Reformation. The Second, Concerning the Celibacy of the Clergy. Title: Two Discourses. The First, Concerning the Spirit of Martin Luther, and the Original of the Reformation. The Second, Concerning the Celibacy of the Clergy. Date: 1687. Author: R. H., 1609-1678. Collecting Area: Rare Books