Referee's Report by James Alexander Murray on two papers, 'The biological characters of spontaneous tumours of the mouse with special reference to rate of growth' and 'The influence of carcinogenic compounds and related substances on the rate of growth of spontaneous tumours of the mouse', both by A [Sir Alexander] Haddow Paper reference code: B.12 and B.13 Not suitable for publication. Most of the photographs depict figures which have been widely published in the last thirty years. Suggests the paper is sent to a specialist cancer journal instead. [Not published]. Received 26 March 1938 24 March 1938