Referee's Report by Harold Jeffreys on a paper 'Tests of statistical hypotheses which are unbiassed in the limit' by [Jerzy] Neyman Paper reference code: A.10 Sectional committee: Mathematics Suggests the paper may be better suited for publication in Biometrika. [Original response to Q7 is partially in square brackes and entirely crossed out, and a revised response written on the attached sheet.] Original response states that the paper is primarily 'elaborate proofs of more or less well-known propositions'. Suggests it may be more suitable for [Egon Sharpe] Pearson's journals or the London Mathematical Society. Acknowledges his opinion may be influenced by a personal bias. Suggests [Alexander Craig] Aitken may be a more suitable referee, and advises against [Ronald] Fisher. Critiques the results and methodology. Revised response states uncertainty the paper's suitability for publication. Queries the wording of the title and critiques methodology. [Not published in RS journals but in the Annals of Mathematical Statistics, v. 9, 2, June 1938]. [February 1938]