Referee's report by Arthur Stanley Eddington, on a paper 'A metrical theory and its relation to the charge and masses of the electron and proton' by H T Flint Sectional committee: Mathematics Recommended for publication in Proceedings, in full. The paper contains nothing to convince the reader that progress will be made by proceedings in this way. However, there is no definite fault in the paper and it represents a lot of effort. [Published in Proceedings of the Royal Society A, 1931]. Endorsed on verso as received 13 February 1931. February 1931