It is not by striking a mean between the diverse practices and professions of separate Christian bodies that the Unity of Christendom will be restored, but by the recognition and resolving of the profound theological differences which lie beneath them. Dr. Mascall's penetrating and vigorous book sets out to clear the ground, to cut through to the radical disunities--beliefs about the Atonement, the Nature of the Church, of the Ministry and of Episcopacy, the Papacy, the Eucharist and the Liturgy--tracing differences of interpretation to their beginnings in the later Middle Ages, after which they were commonly crystallized and overlaid. However, his pursuit of the one faith does not stop there, but is continued to hte newest manifestations of the same schismatic fissions in theologians of today.
Though written with economy and wit, this is a scholarly study of the bedrock realities of disunity and the starting-point for any profitable and constructive thinking about Reunion. It is, incidentally, a brilliant clarification of catholic fundamentals from the unique vantage point of the Anglican Church.