List of papers passed for publication in the Proceedings F J W Roughton,FRS, A B Otis, and R L J Lyster, 'The determination of the individual equilibrium constants of the four intermediate reactions between oxygen and sheep haemoglobin'. A B Otis and F J W Roughton, FRS, 'Improved gasometric methods for estimating oxygen content and percent saturation in haemoglobin dissociation curve determinations'. A M Uttley, 'The probability of neural connexions'. A V Hill, FRS, 'The influence of the external medium on the internal ph of muscle'. P I Marcus and P Talalay, 'On the molecular specificity of steroid-enzyme combinations. The kinetics of beta-hydroxysteroid dehydrogenase'. p50. 6 April 1955