Referee's report by Joseph William Mellor, on a paper 'A new method of determining the distribution curve of polydisperse colloidal systems' by C E Marshall Sectional Committee: Chemistry Recommended for publication in the 'Proceedings of the Royal Society of London'. Has noted several mistypes on the manuscript. 'The method appears to be sufficiently accurate, flexible and rapid to be of practical use'. [Published in the 'Proceedings of the Royal Society of London' A, 1930] Endorsed on verso as received 4 December 1929. [December 1929]