Air Defence Research Sub-Committee Papers (A.D.R. 51-68) (55 and 56 are missing) and other prints Conclusions of the 9th meeting of the Committee Conclusions of the 10th meeting of the Committee Note by Henry Tizard on WSC's memorandum on aerial mines (A.D.R. 51) Memorandum on German Air Strength by WSC (A.D.R. 52) Note on progress of the Committee for the Scientific Survey of Air Defence (A.D.R. 53) Memorandum by Lt-General Sir Hugh Elles, Master General of the Ordnance, on rocket investigation (A.D.R. 54) Joint note by the War Office and the Air Ministry on experiments to determine the effective range of searchlights (A.D.R. 57) Note by Air Vice Marshal Wilfrid Freeman, Air Member for Research and Development on balloon barrages (A.D.R. 58) Note by Air Vice Marshal Wilfrid Freeman, Air Member for Research and Development on the use of television apparatus in aircraft (A.D.R. 59) Note by John Hodsoll, Air Raid Precautions Department, Home Office on smoke screen experiments (A.D.R. 60) Air Ministry Report on progress of work in connection with the silhouette detection of aircraft (A.D.R. 61) Home Defence Committee papers on the use of ships as mobile anti-aircraft batteries and the mounting of anti-aircraft guns on trains (A.D.R. 62) Note by John Hodsoll, Air Raid Precautions Department, Home Office on bombing tests (A.D.R. 63) Progress report of the Committee for the Scientific Survey of Air Defence (A.D.R. 64) Memorandum by Lt-General Sir Hugh Elles, Master General of the Ordnance, on progress in the development of the rocket as a means of anti-aircraft defence (A.D.R. 65) Memorandum by Lt-General Sir Hugh Elles, Master General of the Ordnance, on the effective range of searchlights (A.D.R. 66) Air Ministry paper on incendiary bombs containing sodium potassiium alloy (A.D.R. 67) Air Staff Paper on the present strength of the German Air Force (A.D.R. 68, C.I.D. Paper 1264-B) Conclusions of the 11th meeting of the Committee.