Extract of a letter from Nevill Francis Mott, on a paper 'The theory of D.C. characteristics of rectifiers' by P T Landsberg, to D C Martin, Assistant Secretary of the Royal Society Paper reference code: A147 'Extract from a letter from the Professor N F Mott FRS to Dr D C Martin, dated 18 December (see file A.147) With regard to Simpson & Sutherland, I concur with the opinion of the first referee that these papers should be accepted and published as one volume of the Transactions.' [Published in Proceedings A, 1951]. Date received not given. 28 August 1950