AdminHistory | When the document was published by Blackett in 1962 ( 'Studies of War', pt II, chapter 1, p176, Oliver & Boyd. 1962. See D.101, D.102), Blackett gave the date as December 1941. Bernard Lovell, 'P.M.S. Blackett: A Biographical Memoir', Royal Society: 1976, p.60, n, corrects this to 31 October 1941, but it will be seen that the date was in fact 16 September 1941. |