Referee's report by William Lawrence Bragg, on a paper 'The influence of the difference of orientation of two crystals on the mechanical effect of their boundary' by Bruce Chalmers Sectional committee: Physics Recommended for publication in Proceedings, in full. He doubted whether the paper was suitable for publication in the Proceedings but he decided to recommend it as it follows on from a previous paper and the subject matter is so important. [Published in Proceedings of the Royal Society A, 1937]. Endorsed on verso as received 23 June 1937. 19 June 1937