Referee's report by Edward Provan Cathcart, on a paper 'The relation between oxygen requirement and speed in running' by R M Sargent Sectional Committee: Physiology Recommended for publication in the 'Proceedings of the Royal Society of London'. [Published in the 'Proceedings of the Royal Society of London' A, 1926] Endorsed on verso as received 23 February 1926. 22 February 1926