Referee's report by Frank Twyman, on a paper 'Quantitative spectrographic analysis of biological material-II' by John Stuart Foster and C A Horton Sectional Committee: Physiology Recommended for publication in the 'Proceedings of the Royal Society of London'. Suggests adding references to previous investigations, but not if this would delay publication. [Published in the 'Proceedings of the Royal Society of London'] Endorsed on verso as received 14 April 1937. [April 1937]