Referee's report by John William Strutt, Lord Rayleigh, on a paper 'A statistical survey of colour vision' by R A Houstoun Sectional Committee: Physics and Chemistry Not recommended for publication in the 'Proceedings of the Royal Society of London'. Does not understand the theories of the author. Suggests another opinion is sought. [Published in the 'Proceedings of the Royal Society of London' A, 1918] Endorsed on verso as received 1 May 1918. [May 1918]