Referee's report by Alfred Rene Jean Paul Ubbelohde, on a paper 'The poisoning of a palladium catalyst by carbon monoxide' by M G T Burrows and W H Stockmayer Sectional committee: Chemistry Recommended for publication. The paper should be shortened and attention should be drawn to what is new. The paper could also be published by the Proceedings of the Faraday Society or the Journal of the Chemical Society. More recent data on gases should be consulted, as the current data is 'a little out of touch'. [Published in Proceedings of the Royal Society A, 1940]. Endorsed on verso as received 14 May 1940. May 1940