Published online by Cambridge University Press: 09 November 2011
In Britain air-photography has proved to be one of the more important tools of the historian and archaeologist working in the Roman period. The principal results of aerial reconnaissance since 1945 have been described in a notable series of papers by the writer's colleague, Professor J. K. St. Joseph, published in the Journal of Roman Studies. Most of the discoveries reported had been made on flights sponsored by the Committee for Aerial Photography of the University of Cambridge. A fuller treatment of the photography of walled towns has also appeared; the present paper likewise is devoted to a single class of site in greater detail than is feasible in a periodic general review. Some of the sites to be described are hitherto unpublished; others, previously noted in brief, now receive a more extended commentary.