Antiquity has recently received some information* of great value in connexion with radiocarbon dating from the advisory committee on the subject set up by the American Anthropological Association and the Geological Society of America. It consists of an historical foreword, a corrected list of dates, a number of reports on specific problems, a summary and a bibliography, partly in typescript and partly on microfilm. The list differs little from the printed one which was distributed to a number of interested people in September 1950, though it contains a few additions and corrections, and the real importance of the material now received lies in the reports and the summary.