Referee's report by Nevill Francis Mott, on a paper 'Structural changes during the fatigue of metals' by F P Bullen, Alan Kenneth Head and W A Wood Sectional committee: Engineering Paper reference code: A93 Recommended for publication in the Proceedings. Mott writes: 'This seems to me an important addition to out understanding of fatigue. One of the authors, A K Head is now in this country (at Bristol) and would be doubtless be willing to read the paper.' [Published in Proceedings A, 1953]. Date received not given. 8 August 1952