Referee's report by Kathleen Yardley Lonsdale, on a paper 'The accuracy of bond-length estimations obtained by double Fourier series methods from X-ray data' by John Monteath Robertson and John Graham White Sectional committee: Physics She is doubtful if the paper should be published. The study is not exhaustive and it is doubtful whether anyone apart from specialists can appreciate the limitations of the paper. The paper may be better published by the Faraday Society or in the proposed Acta Crystallographica. [Published in Proceedings of the Royal Society A, 1947]. Date received not given. 1946