Referee's report by William George Penney, on a paper 'The diffraction of an acoustic pulse by a wedge' by J W Miles Sectional committee: Mathematics Paper reference code: A273 Recommended for publication in the Proceedings. Penney writes: 'This paper, and the following one, give neat compact solutions of a diffraction problem while become complicated by the earlier methods. As the author is at present in New Zealand, his inability to consult some of the references is excusable. I recommend that we accept both papers'. [Published in Proceedings A, 1952]. Date received not given. 24 December 1951