Copy of a letter from John Colville [pilot, RAFVR, former Private Secretary to WSC] to CSC with impressions of South Africa and criticisms of the Empire Air Training Scheme; with correspondence between WSC, Sir Archibald Sinclair [Secretary of State for Air, later 1st Lord Thurso] and 1st Lord Cherwell [Personal Assistant to WSC, earlier F A Lindemann] enquiring about the efficiency of the scheme, and Colville's progress.