Letter from James Gray, on a paper 'Experimental studies on amphibian oocyte nuclei. I. Investigation of the structure of the nuclear membrane by means of the electron-microscope' by Harold Garnet Callan and S G Tomlin, to D C Martin Paper reference code: B8 Gray writes the authors have met 'to a considerable extent' the criticisms he made in his report, however is still doubtful to the standard of the paper. Therefore suggests the paper should be sent to Professor J T Randall, King's College and if he gives his approval Gray recommends the paper be published. Written at University of Cambridge, Department of Zoology, Downing Street, Cambridge [England]. [Published in Proceedings B, 1950]. Endorsed on recto as received 23 March 1950. 22 March 1950