Referee's Report by W E [William Edwad] Curtis on two papers, 'The action of radiations on bacteria. IV - the lethal action of soft X-rays' and 'The action of radiations on bacteria. V - the target theory', by R B Haines and D E Lea Paper reference code: B.68 and B.69 Suitable for publication in the Proceedings. The results, 'wilst inevitably lacking in certainty, are at least very plausible'. [Not published]. Received 21 December 1938 [December 1938]