Referee's report by Derek Ainslie Jackson, on a paper 'The fine structure of the 4d3∑, 3Πcd, 3Δd→2p3Πcd transitions of the H2 spectrum' by E W Foster and Sir Owen Willans Richardson Sectional committee: Physics Paper reference code: A207 Recommended for publication in the Proceedings. Jackson suggests improvements to figure one, recommends the authors give a brief statement on the vacuum system, and remarks on the method used for making wavelength measurements. [Published in Proceedings A, 1953]. Date received not given. 8 December 1952