Referee's report by Arthur John Allmand, on a paper 'The kinetics of electrode processes. -Part IV' by John Alfred Valentine Butler and G Armstrong Sectional Committee: Chemistry Not recommended for publication in the 'Proceedings of the Royal Society of London'. To justify the observations the authors should put forward an explanatory theory. The authors do not reference previous work, and the paper does not advance new knowledge. [Not published] Endorsed on verso as received 23 January 1933. [January 1933]