Letter from Brebis Bleaney, on a paper 'The thermal conductivity of tin, mercury, indium and tantalum at liquid helium temperatures' by John Kenneth Hulm, to the Assistant Secretary of the Royal Society [D C Martin] Paper reference code: A94 Bleaney writes: 'With regard to the paper which you sent me to referee two days ago, I very much regret that it will be almost impossible for me to return it within the stated period of 21 days. I am engaged in Fianl examinations, and I shall not be free of these until June 30th.' He suggests Franz Eugen Simon as a potential referee. Written at The Clarendon Laboratory, Parks Road, Oxford [England]. [Published in Proceedings A, 1950]. Endorsed on recto as received 9 June 1950. 8 June 1950