Referee's report by Harry Work Melville, on a paper 'Measurement of the ultimate pressures of oildiffusion pumps' by J Blears Sectional committee: Chemistry Recommended for publication in Proceedings. Contains extra question - 'Is there any information contained in the paper which likely to be of value to the enemy?' Referee replies that it is difficult to say, but 'surely no in view of the present military situation'. [Published in Proceedings of the Royal Society A, 1946]. Date received not given. 1945