Minutes, meeting of the Physiology and Medical Sciences Sectional Committee Professor C A Lovatt Evans in the chair. Committee matters including consideration of nominees to replace members of the Sectional Committee retiring and decision to recommend Dr H Fairley, J H Gaddum, R A McCance, and W T Morgan; consideration of nominees to replace members of the Council and decision to recommend Professor W Smith and Professor F G Young. Papers passed for publication: F W Brambell, FRS, W A Hemmings, M Henderson and W T Rowlands, 'The selective admission of antibodies to the foetus by yolk-sac splanchnopleur in rabbits'. R M C Dawson and D Richter, 'The phosphorus metabolism of the brain'. Communicated by D Keilin, FRS. A V Hill FRS, 'Does heat production precede mechanical response in muscular contraction?' H G Woodruff and M F A Woodruff, 'The transplantation of normal tissues. With special reference to auto- and homotransplants of thyroid and spleen in the anterior chamber of the eye, and subcutaneously, in Guinea pig'. Communicated by C H Kellaway, FRS. p19 19 January 1950