Referee's report by Samuel Walter Johnson Smith, on a paper 'The magnetic susceptibility of some binary alloys' by James F Spencer and M E John Sectional Committee: Engineering Sciences Not recommended for publication in the 'Proceedings of the Royal Society of London'. The experimental methods have not been described, and so the accuracy of the measurements cannot be judged. [Published in the 'Proceedings of the Royal Society of London' A, 1927] Endorsed on verso as received 26 March 1927. [March 1927]