A N N E X. Copy of letter dated 8th June, 1938, from the Joint Secretary, Sub-Committee on Bombing and Anti-aircraft Gunfire Experiments, to the Deputy Secretary, Committee of Imperial Defence. 19/4/18. 8th June, 1938. Sir, I am directed by Lieut.-General Sir Hugh Elles to inform you that at their meeting held on 12th May, 1938, the Sub-Committee on Bombing and Anti-aircraft Gunfire Experiments had under consideration Report No. 3 by the Joint Intelligence Sub-Committee on Intelligence regarding Air Warfare in Spain Air Attack on Ships (Paper No.