This marvelously beautiful book owes its value and its Interest largely to Its hundred full-page plates - the volume is of quarto size — illustrating the thrilling beauties of aircraft and gliders In flight and of the views they afford of the earth beneath and the heavens around. Dr. Curry's book discovers a world of vast solitudes and strange perspectives, of breathless speeds or slow- moving, mighty panoramas. Its 100 photographs, by German. Swiss, French, English and American artists, reveal a ceaselessly changing skyscape of miraculous cloud-formations, storm-curtains and sunsets. In an introductory chapter relating to “cloudland,” Dr. Curry combines scientific data relating to cloud form with the beauties of flying.