Referee's report by John Scott Haldane, on a paper 'Composition of the blood gases during the respiration of oxygen' by George A Buckmaster and John Addyman Gardner Sectional Committee: Physiology Recommended for publication in the 'Proceedings of the Royal Society of London'. Suggests omitting a few paragraphs and allowing the authors time to reconsider their first conclusion. However, if the authors wish the first conclusion to stand as it is, the paper is still important enough to publish. [Published in the 'Proceedings of the Royal Society of London', 1912] Endorsed on verso as received 19 January 1912. [January 1912]