Referee's report by Arthur Mannering Tyndall, on a paper 'The secondary electron emission from metals in the low primary energy region' by Irena Gimpel and Owen Willans Richardson Sectional Committee: Physics Recommended for publication in the 'Proceedings of the Royal Society of London'. Finds it difficult to suggest shortening the paper without the necessity of re-writing it completely. The length of the paper would suggest it be for the Philosophical Transactions, but this has been crossed out. Suggests waiving the 24-page restriction for the Proceedings, unless the stock of Transactions paper could be tapped in this case. 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. [1942]