Letter from Henry Gerard Thornton, on three papers 'Oxidation-reduction processes in cultures of bacteria Parts I, II and III' by A C Baskett and Cyril Hinshelwood, to [David Christie] Martin Paper reference code: B19, B20 and B21 Thornton recommends the paper should be published as they 'form a series with previous publications in the Proceedings'. Written at Down Green, Wheathampstead, Herfordshire [England]. [All three published in Proceedings B, 1950]. Date received not given. [1] July 1950