Referee's report by Cyril Norman Hinshelwood, on a paper 'The kinetics of the polymerization of isoprene on sodium surfaces' by J L Bolland Sectional committee: Chemistry Recommended for publication in Proceedings. The paper should be made more concise. He described what he might do and then what he did do, when all that is needed is what he did do. Some general observations are unnecessary. [Published in Proceedings of the Royal Society A, 1941]. Endorsed on verso as received 27 November 1940. November 1940