Referee's report by John Burdon Sanderson Haldane, on a paper 'Cytogenetic analysis of the action of carcinogens and tumour inhibitors in Drosophila melanogaster. I. 1:2 3:4 diepoxybutane' by Myrtle J Bird and O G Fahmy Sectional committee: Physiology Paper reference code: B12 Recommended for publication in the Proceedings. Refers to reference that radiation causes mutation, comments on figures 4 and 5, and several grammatical errors. [Published in Proceedings B, 1953]. Date received not given. 15 March 1952