Referee's Report by [Arthur Mannering] Tyndall on a paper 'The surface migration of barium' by M Benjamin and R O Jenkins Paper reference code: A.141 Sectional committee: Physics Thinks the paper is of good quality, but of specialist interest. Is unsure whether the paper makes a significant advance due to lack of explanation for its findings, acknowledging that there may not yet be one. Is prepared to approve it for publication in P R S [Proceedings of the Royal Society], subject to a positive report from a second referee and the paper being shortened. [Not published, had been announced in Nature, 24 July 1937, p.152]. Received 17 August 1938 [August 1938]