Referee's report by Walter Rosenhain, on a paper 'Sulphide colours on metallic copper' by F Hurn Constable Sectional Committee: Physics Recommended for publication in the 'Proceedings of the Royal Society of London'. Some of the wording requires revision or re-writing. Encloses a short detailed note on suggested revisions. [Published in the 'Proceedings of the Royal Society of London' A, 1929] Endorsed on verso as received 12 July 1929. [July 1929]