Responsibility in religious belief.--Religion and illusion; and religion and reality.--Progress in religion.--Preliminaries to religious belief.--The apocalyptic element in the teaching of Jesus.--The specific genius of Christianity.--What do we mean by heaven? and what do we mean by hell?--The essentials of Catholicism.--The convictions common to Catholicism and Protestantism.--Institutional Christianity.--Christianity and the supernatural.