Referee's report by John Frank Allen, on a paper 'An experimental and theoretical study of the relation between magnetic field and current in a superconductor' Alfred Brian Pippard Sectional committee: Physics Paper reference code: A196 Recommended for publication in the Proceedings. Allen writes: I have no adverse criticism to make. The writing is concise and the style lucid. The paper is, in my opinion, the most important contribution to the theory of superconductivity published in the last three or four years.' [Published in Proceedings A, 1953]. Date received not given. 12 November 1952