A fresh study of early catechetical procedures, and an explanation of the instructions and techniques used in adult baptism in the early Church, are always welcome. Comparatively speaking, little has been done on the subject. This article makes no pretension of being a detailed study of the subject, but is only a partial treatment of it, with special emphasis upon the contributions of St. Augustine. Occasionally, references are drawn from Church canons and other early Church writings on the catechetical practice of the time.