Referee's report by William Henry Perkin, on a paper 'The relative atomic weights of nitrogen and sulphur' by F P Burt and F L Usher Referee does not have the scientific background to accurately judge whether the paper is suitable for publication or not. Suggests sending it to Dr Alexander Scott instead. [Published in Proceedings of the Royal Society A, 1911]. Endorsed on verso as received 10 June 1910. 8 June 1910