Letter from Ronald Aylmer Fisher, on a paper 'The form-transformation of the abdomen of the female pea-crab, Pinnotheres pisum Leach' by A E Needham to D C Martin, Assistant Secretary of the Royal Society He submitted the paper to a young mathematician called George Owen. There is no doubt of the competence of the work. [Published in Proceedings of the Royal Society B, 1950]. Endorsed on recto as received 2 November 1949. 31 October 1949