form and substance. The still later theologians, as, for instance, S. J. Baumgarten, I could of course not employ at all, for who would think of calling theirs an age of orthodoxy? They can, therefore, not appear in a work designed not as a history of Theology, but as a representation of orthodox doctrine. “The doctrinal writers upon whom I have based my representations are, therefore, the following: Melanchthon (Loci Communes Theologici, 1545), Chemnitz (Loci Theologici, ed. Polycarpus Leyser, 1591),