Referee's report by William Hume-Rothery, on a paper 'The application of Boltzmann’s superposition theory to materials exhibiting reversible β flow' by C Henderson Sectional committee: Engineering Sciences Paper reference code: A174 Recommended for publication in the Proceedings. Remarks: 'I think the diagrams should have proper description explaining exactly what is shown'. [Published in Proceedings A, 1951]. Date received not given. 16 November 1950