Schools and Teachers in the Church at the end of the second and the beginning of the third century; scientific efforts (Alogi in Asia Minor, Cappadocian Scholars, Bardesanes of Edessa, Julius Africanus, Scholars in Palestine, Rome and Carthage); The Alexandrian Catechetical School. Clement; The temper of Clement and his importance in the History of Dogma; his relation to Irenaeus, to the Gnostics and to primitive Christianity; his philosophy of Religion; Clement and Origen (2) The system of Origen Introductory: The personality and importance of Origen; The Elements of Origen's theology; its Gnostic features; The relative view of Origen; His temper and final aim: relation to Greek Philosophy; Theology as a Philosophy of Revelation, and a cosmological speculation; Porphyry on Origen; The neutralising of History, esoteric and exoteric Christianity; Fundamental ideas and arrangement of his system; Sources of truth, doctrine of Scripture. I. The Doctrine of God and its unfolding Doctrine of God; Doctrine of the Logos; Clement's doctrine of the Logos; Doctrine of the Holy Spirit; Doctrine of Spirits. II. Doctrine of the Fall and its consequences Doctrine of Man III. Doctrine of Redemption and Restoration The notions necessary to the Psychical; The Christology; The Appropriation of Salvation; The Eschatology; Concluding Remarks: The importance of this system to the following period. DIVISION I BOOK II. THE LAYING OF THE FOUNDATIONS. CHAPTER I. HISTORICAL SURVEY.