Referee's report by Robert John Strutt, Lord Rayleigh, on a paper 'The formation and composition of Mercury Helide' by [John Job] Manley Sectional committee: Physics Not recommended for publication in Philosophical Transactions or Proceedings. The style of the paper is 'very bad from a scientific point of view'. It seems as if 'the undigested contents of a laboratory notebook were unloaded on the reader'. The work 'has been done in good faith', but 'it is difficult to feel confidence in it'. The number of illustrations is 'excessive'. If it is published, it should be shortened. [Not published]. Endorsed on verso as received 22 July 1925. June 1925