Referee's report by Alfred Fowler, on a paper 'A correspondence between the spectrum of the potassium ion and the spectrum of argon' by H Grayson Smith Sectional Committee: Physics Not recommended for publication in the Proceedings of the Royal Society of London. The comparison is inadequate and the results trivial. Refers to more comprehensive work by Pieter Zeeman and Dik [?], and John Cunningham McLennan. 'The paper has nothing at all to recommend it for favourable consideration'. [Not published] Endorsed on verso as received 20 February 1923. 19 February 1923