Referee's report by Gilbert Cook, on a paper 'The application of Boltzmann’s superposition theory to materials exhibiting reversible β flow' by C Henderson Sectional committee: Engineering Paper reference code: A174 Remarks: 'I do not feel I have enough knowledge of the physics of metals to enable me to give authoritative opinion regarding the scientific value of this paper...' and includes referees observations on the paper. [Published in Proceedings A, 1951]. Date received not given. 18 September 1950