Referee's report by Walter Noel Hartley, on a paper 'On the absorption spectra of dilute solutions' by Thomas Ewan Recommended for publication in the Proceedings of the Royal Society of London. Refers to work of Friedrich Wilhelm Ostwald, Svante Arrhenius, Kreeke [?], Picton [?] and Gare [?]. Subject: Physics and Chemistry [Published in the 'Proceedings of the Royal Society of London', 1895] nd [1894]