Referee's report by William Hume-Rothery, on a paper 'Defect lattices in some ternary alloys' by Henry Solomon Lipson and A Taylor Sectional Committee: Physics Recommended for publication in the 'Proceedings of the Royal Society of London' once abbreviated. The paper contains corrections for an earlier paper published in the Proceedings, which should be made much clearer, rather than 'buried in a footnote'. Suggests places for omissions, condensation and rearrangement. [Published in the 'Proceedings of the Royal Society of London'] Endorsed on verso as received 17 July 1939. [July 1939]