Referee's report by Cyril Norman Hinshelwood, on a paper 'The thermal decomposition of hydrogen peroxide vapour' by Robert C Mackenzie and Mowbray Ritchie Sectional Committee: Chemistry Recommended for publication in the 'Proceedings of the Royal Society of London'. Suggests adding further experimental details regarding thermal activation into the summary. Contains extra question - 'Is there any information contained in the paper which likely to be of value to the enemy?' Referee replies no. [Published in the 'Proceedings of the Royal Society of London'] No received date. [1944]