Referee's report by William George Penney, on a paper 'Dispersion of soluble matter in solvent flowing slowly through a tube' by Sir Geoffrey Ingram Taylor Sectional committee: Mathematics Paper reference code: A70 Recommended for publication in the Proceedings. Penney suggests Taylor should be invited to write a short summary for Proceedings B, and comments the paper would be a good one to read before the Royal Society if there was another that went nicely with it on the B side. [Published in Proceedings A, 1953]. Date received not given. 21 April 1953