Only recently three notebooks by Hans von Soden (1881-1945) were found in which he recorded four seminars Adolf Harnack taught between the summer of 1904 and early 1906. The seminars were devoted to the following subjects: Justin's Apologies, Gnosticism, Augustin's Confessions (Books 1 to 6), and the Works of Sulpicius Severus. These records with their detailed accounts provide a precise insight not only into patristic research a hundred years ago, but also into the teaching in a department of the Berlin University at that time. Harnack's scholarly interests in the very varied patristic...