In my recent contribution to The Expository Times I acknowledged my indebtedness to Dr G. S. Duncan, whose book (St Paul's Ephesian Ministry(1929)) has convinced me that Philemon and most of Colossians, which I had always thought originated in Rome, were written, as he maintains, at Ephesus; and this has enabled me to simplify, and so to improve, my views concerning the occasions and number of genuine notes in II Timothy. But I found it impossible within the time and space at my disposal to give more than a brief summary of my reactions to Duncan's work in its bearing on the problem of the Pastoral Epistles, and said nothing at all about the bearing of those Epistles on his theory. So, pending his own contribution to the same series of articles, it seems desirable to set down in rather more detail the reasons why, having gone so far to meet him, I cannot go the rest of the way.