Referee's report by John Monteath Robertson, on a paper 'Polypeptide chain configurations in crystalline proteins' by William Lawrence Bragg, John Cowdery Kendrew and Max Ferdinand Perutz Sectional committee: Physics Paper reference code: A67 Recommended for publication in Proceedings: 'In spite of its complexity, I find the paper extremely clear and readable.' [Published in Proceedings A, 1950]. Date received not given. 1950