Referee's report by Eric Keightley Rideal, on a paper 'The behaviour of visual purple at low temperature' by E E Broda and Charles Frederick Goodeve Sectional Committee: Chemistry Recommended for publication in the 'Proceedings of the Royal Society of London'. However, if H J A Dartnall, Charles Frederick Goodeve and Richard James Lythgoe hadn't already published their first paper in the Proceedings, he would have suggested the Transactions of the Faraday Society as a more suitable place for publication. 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. [1941]