Referee's report by Arthur John Allmand, on a paper 'On the surface potentials of unimolecular films. Part IV.—The effect of the underlying solution and transition phenomena in the film' by J H Schulman and Arthur Hentry Hughes Sectional Committee: Chemistry Recommended for publication in the 'Proceedings of the Royal Society of London'. The paper is elaborate but clearly written. Makes some minor suggestions regarding the text. [Published in the 'Proceedings of the Royal Society of London' A, 1932] Endorsed on verso as received 5 July 1932. 2 July 1932