Referee's report by Edward Mellanby, on a paper 'Crystalline anti-pernicious anaemia factor from liver' by K H Fantes, J E Page, L F J Parker and Ernest Lester Smith Sectional committee: Physiology He isn' competent enough to comment on the paper. As far as he can see, the paper may be suitable for Proceedings. The authors should provide more evidence of the effects of the subatnce used. [Published in Proceedings of the Royal Society B, 1950]. Date received not given. 29 April 1949