Chapter 1

The Old and New Elements in the formation of the Catholic Church; The fixing of that which is Apostolic (Rule of Faith, Collection of Writings, Organization, Cultus); The Stages in the Genesis of the Catholic Rule of Faith, the Apologists; Irenæus, Tertullian, Hippolytus; Clement and Origen; Obscurities in reference to the origin of the most important Institutions; Difficulties in determining the importance of individual Personalities; Differences of development in the Churches of different countries.

I. FIXING AND GRADUAL SECULARISING OF CHRISTIANITY AS A CHURCH