Referee's report by Malcolm Dixon, on a paper 'The inactivation of an enzyme (carboxypeptidase) by X- and a-radiation' by W M Dale, Louis Harold Gray and W J Meredith to the Assistant Secretary of the Royal Society Sectional committee: Chemistry Recommended for publication in Philosophical Transactions. Thorough revision is required before publication. The accuracy of results is low, which makes a considerable difference to their findings. The results are inconclusive and some obscurities need to be cleared up. [Published in Philosophical Transactions A, 1949]. Date received not given. 1947