Referee's report by Joseph Proudman, on a paper 'Relaxation methods applied to engineering problems. VII. Problems relating to the percolation of fluids through porous materials' by F S Shaw and Richard Vynne Southwell Sectional Committee: Mathematics Recommended for publication in the 'Proceedings of the Royal Society of London'. Makes some minor points on the text and figure numbering. 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. 23 January 1941