Referee's report by Alfred Charles Glyn Egerton, on a paper 'The effect of diffusion of the main reactants on flame speeds in gases' by J Corner Sectional committee: Physics Recommended for publication in Proceedings. It is difficult to follow. It provides a useful commentary on the lack of success which has been acheived in the past but this study could have been written in fewer words. Despite this, the paper provides an advance in the subject. [Published in Proceedings of the Royal Society A, 1949]. Date received not given. 1949