Notes on papers passed for publication Lists papers passed for publication by the Physiology and Medical Science Committee for publication. In Proceedings: E C Foulkes & R Lemberg, 'The formation of choleglobin and the role of catalase in the erythrocyte'. Communicated by D Keilin. A V Hill, FRS, 'The abrupt transmission from rest to activity in muscle'. M Abercrombie, M L Johnson & G A Thomas, 'The influence of nerve fibers on Schwann cell migration investigated in tissue culture'. C Lutwak-Mann, T Mann and D Price, 'Metabolic activity in tissue transplants'. Communicated by D Keilin. Audrey U Smith, 'The antigenic relationship of some mammalian spermatozoa'. Communicated by A S Parkes, FRS. A V Hill, FRS, 'Is relaxation an active process?' L E R Picken, 'Shape and molecular orientation in lepidopteran scales'. Communicated by J Gray, FRS. A C Baskett & Sir Cyril Hinshelwood, FRS, 'The utilization of carbon sources by Bact lactis aerogenes: general survey I and II significance of the tricarboxylic acid cycle'. K H Fantes, J E Page, L F J PArker and E L Smith, 'Crystalline antopernicious anaemia factor from liver'. A A Eddy and Sir Cyril Hinshelwood, FRS, 'The utilization of potussium by Bact. lactis aerogenes'. Communicated A R Todd, FRS. S Jackson and Sir Cyril Hinshelwood, FRS, 'An investigation of the nature of certain adaptive changes in bacteria'. p17. E Baldwin and W H Yudkin, 'Phosphagen in echinodermata and protochondata.' Communicated by J Needham, FRS. R A Fischer, FRS, 'A class of emumerations of importance in genetics'. p16-17. 1949