Referee's report by Ezer Griffiths, on a paper 'Viscosity of liquid sodium and potassium' by Y S Chiong Sectional Committee: Physics Recommended for publication in the 'Proceedings of the Royal Society of London'. Publishing the theory and the results in two different societies should not be encouraged, but in this case the contribution is of sufficient importance. Suggests submitting the paper to Geoffrey Ingram Taylor. [Published in the 'Proceedings of the Royal Society of London'] Endorsed on verso as received 16 July 1936. [July 1936]