Referee's report by Eric Keightley Rideal, on a paper 'The exchange of energy between a platinum surface and helium atoms and its dependence upon the structure of the surface' by W B Mann Sectional Committee: Physics Recommended for publication in the 'Proceedings of the Royal Society of London'. Is not certain if the photographs should be reproduced, but if they are omitted some rewriting would be necessary. [Published in the 'Proceedings of the Royal Society of London'] Endorsed on verso as received 31 March 1937. [March 1937]