Referee's report by Harry Hemley Plaskett, on a paper 'Argon vacuum wavelength measurements' by T A Littlefield and D T Turnbull Sectional committee: Physics Paper reference code: A60 Recommended for publication in the Proceedings. Plaskett remarks on the suitability of publishing this paper by the Royal Society. [Published in Proceedings A, 1953]. Date received not given. 8 April 1953