Referee's report by William Pole, on a paper 'Investigations into the effects of training walls in an estuary like the Mersey' by Augustus George Vernon Harcourt Not recommended for publication in the Proceedings of the Royal Society of London. Refers to work of Osborne Reynolds. Subject: Physics and Chemistry, Engineering Sciences [Published in the 'Proceedings of the Royal Society of London', 1890] 8 February 1890