1st ed., 1940. 160 pp., frontis., + photo-plates. D.j., 19 x 13cm. Some loss to d.j., o/w V.G. In 1918 Britain had the strongest Air Force in the world and in 1940 she was building a still mightier structure of air strength and the Empire was working with her. This book examines the progress of Britain's air power; what it meant in 1940 to bomb, to fight in the air, to reconnoitre, to guard the traffic lanes of the sea from air assault, to create an aerial mass of manoeuvre that would have a profound influence upon the War. Well illustrated with contemporary photographs.