Nder the influence of Bishop Ambrose. Then followed a mighty struggle in his soul, and in the end he yielded himself joyfully as a disciple of Christ. On the occasion of his baptism was composed the hymn called the "Te Deum" which is still used in churches. [Illustration: ST. JOHN AND ST. AUGUSTINE _Church of S. Giovanni Evangelista, Parma_] Henceforth the life of Augustine was filled with Christian labors. After some ten years of devout living he became the bishop of Hippo (near Carthage) where he resided for thirty-five years, until his death in 430. All his stores of learning were devoted to the explanation of Christian theology. He wrote a great number of treatises refuting what he believed to be heresies, and setting forth what he considered the true doctrines of the faith. An old writer pronounced him "sweet i