Referee's report by Major Greenwood, on a paper 'Determination of lung volume: a simple constant volume modification of Christie’s method' by F J C Herrald and John McMichael Sectional committee: Physiology Recommended for publication. One of the figure should be modified to become a table of three columns, setting out the different kinds of values. If Archibald Vivian Hill approves of the paper , no further reference is required. [Published in Proceedings of the Royal Society B, 1939]. Endorsed on verso as received 1938. 1938