Copy letter from David Christie Martin to the Secretary to the Communist Party Executive Committee, The Royal Society 'Dear Sir, I thank you for your letter of 16 April addressed to the President [of Royal Society] and enclosing a booklet entitled 'A Plan for Science'. Sir Robert Robinson is out of the country at the moment and will not be back before the end of this week but I shall place your letter before him on his return. Yours faithfully DM Assistant Secretary [Royal Society]'. 22 April 1947