A discourse of praying with the spirit, and with the understanding. Where of extemporary premeditate set forms of prayer. Preached in two sermons at Hillsborough anno 1659. By Henry Leslie (maugre all antichristian opposition) Bishop of Down and Conner. And now published for the redresse of the great abuse of prayer in that diocesse, whereof he had, and ought to have a charge. Whereunto is annexed a letter of Jer. Taylor, D.D. concerning the same subject.