Referee's report by Ernest Rutherford, on a paper 'The composition of the x-rays from various metals' by George William Clarkson Kaye Sectional Committee: Physics and Chemistry Recommended for publication in the 'Proceedings of the Royal Society of London'. The results are interesting, but has doubts about the analytical methods. [Published in the 'Proceedings of the Royal Society of London' A, 1917] Endorsed on verso as received 26 March 1917. [March 1917]