Calumny refuted: or, An answer to the personal slanders published by Dr. Richard Newton, in his letter to Dr. Holmes, vice-chancellor of the University of Oxford, &c : In which also, the conduct of the Lord Bishop of Exeter, and of the Society of Exeter-College, in relation to Hart-Hall, is vindicated. By John Conybeare, D.D. dean of Christ-Church, Oxon.