Referee's report by Richard Whiddington, on a paper 'Characteristics of the adsorption of indium and thallium atoms on tungsten oxide' by Cecil Frank Powell and R L Mercer Sectional Committee: Physics Not recommended for publication in the 'Proceedings of the Royal Society of London', if amended. Refers to work by John Taylor and Irving Langmuir, with whose work the present paper is 'hardly distinguishable'. [Published in the Philosophical Transactions of the Royal Society] Endorsed on verso as received 12 February 1935. [February 1935]