Referee's report by Frederick George Donnan, on a paper 'The absorption spectra of some naphthalene derivatives in vapour and solution' by Henry G De Laszlo Sectional Committee: Physics Recommended for publication in the 'Proceedings of the Royal Society of London'. The paper requires much condensation. The figures have been produced in German, and the author must give assurance that they have not been previously published elsewhere. [Published in the 'Proceedings of the Royal Society of London' A, 1926] Endorsed on verso as received 9 March 1926. [March 1926]