Referee's report by Paul Adrien Maurice Dirac, on a paper 'The angular momentum of a photon' by G Temple and E C Rust Sectional committee: Mathematics Not recommended for publication. The author's method used to determining eigenvalues is not justified and 'it is not surprising that it gave the wrong results in the present case'. No small alteration will correct this. Part II is independent from part I and could be published by itself. Part I has lots of errors and is 'valueless'. [Not published]. Endorsed on verso as received 20 May 1931. May 1931