Includes manuscript, typescript, and galley proofs annotated with suggested corrections and amendments from various people including: WSC, [William] Deakin [literary assistant], [1st Lord Cherwell, earlier F A Lindemann], "E M" [Sir Edward Marsh], [Lieutenant-General Sir Henry Pownall], [secretary Elizabeth Gilliatt], and [Isaiah Berlin].Also includes: sections provisionally intended to feature in chapters entitled "The Darkening Scene", "The Loaded Pause", and "Air Defence Research"; preliminary notes on the cost of German rearmament in 1936, and copies of contemporary letters from WSC, for incorporation into the chapter.