At the invitation of the editor I venture to resume a theme which I have dealt with in some detail and with full illustrations elsewhere. First, because it can form an epigraphic corollary to Mr. B. R. Hartley's substantial paper on ‘The Roman occupations of Scotland: the evidence of samian ware’. In his chart on page 42 he dates the evacuation of Scotland to 211-12 to leave space for the Carpow evidence. Secondly, because summaries can be quoted of the evidence from samian and coarse pottery, on the latter of which there are recent modifications. Thirdly, because two writers, Dr. J. C. Mann and Dr. M. G. Jarrett, have given inadequate reasons for rejecting my dating of the monumental text from the east gate of Carpow fortress to the emperor Caracalla no earlier than 212. These articles must have had a wide circulation, and there is a risk that many readers will have been misled by what seem, at least to me, to be erroneous observations. One note of caution is needed: this interpretation is limited by the evidence which is available now, and it is quite possible that the spades of Dr. J. Wilkes and Mr. J. D. Leach will produce some further text which may upset, or perhaps substantiate, the proposed conclusions.