From August 1935 to July 1936 Sir Frederick Leith-Ross, the Chief Economic Adviser to the British Government, was away from Britain on an official mission to the Far East. While accepting that, as Hankey, the secretary to the cabinet, put it, after Leith-Ross had been away for several months, he was a ‘distinguished Civil Servant’ whose ‘services could, with difficulty, be spared from European problems’, the aim of this paper is not to describe in detail what Leith-Ross did during his lengthy Far Eastern sojourn: on that he himself wrote an account which was published just before his death. The purpose is rather, by studying the origins of the mission and the reactions to it in British Government circles concerned with Far Eastern policy, to cast light on that policy during Britain's last few years as a great power in the Far East.3 Within die Foreign Office itself, Far Eastern policy was to a large degree the preserve of die professional staff concerned with it. The most senior of these in 1935 were C. W. Orde, head of the Far Eastern department, Sir John Pratt and Sir Victor Wellesley.