Referee's report by Philip Bowden, on a paper 'A study of some impacts between metal bodies by a piezo-method' by A W Cook Sectional committee: Physics Paper reference code: A248 Recommended for publication. Bowden remarks that the 'experiments have been carried out with care and skills and the results are of interest'. However the paper in its present form is far too long, and would be improved by shortening it. [Published in Proceedings A, 1952]. Date received not given. 20 November 1951