Referee's report by Charles Halliley Kellaway, on a paper 'Amoebicidal action and chemical constitution' by J D Fulton, L P Joyner, Harold King, J M Osbond and Jean Wright Sectional committee: Physiology Paper reference code: B5 Recommended for publication in the Proceedings. Kellaway remarks on the valuable contribution of the paper and discusses the problem with results based on in vitro tests. [Published in Proceedings B, 1950]. Date received not given. 2 March 1950