Referee's report by Samuel Walter Johnson Smith, on a paper 'A contribution to the study of the magnetic properties of manganese and of some special manganese steels' by Robert Abbott Hadfield, C Chéneveau and Ch Géneau Sectional Committee: Physics and Chemistry Recommended for publication in the 'Proceedings of the Royal Society of London'. Refers to work by Gebhardt [?], Owen [?], Weis[?], and Handa [?]. Provides extensive criticism of the paper. Similar results have already been published by C Chéneveau and Lolly [?] in the Physical Society publications. [Published in the 'Proceedings of the Royal Society of London' A, 1917] No received date. nd [1917]