Referee's report by James Walker, on a paper 'The electrode potentials and the energy of solvation' by Jaroslav Heyrovsky Sectional Committee: Physics Not recommended for publication in the Proceedings of the Royal Society of London. Refers towork by John Alfred Valentine Butler, whose criticisms of a previous paper by the same author can be applied to the current paper. The paper should not be published unless the author can offer a satisfactory reply to the criticisms. [Not published] Endorsed on verso as received 7 January 1924. [January 1924]