The SciencesDecember 1, 1917
Building American Aviation
How we are going About the Business of Winning the War in the Air
By Col. H. H. ["Hap"] Arnold, Chief of Air Division, Aviation Section, Signal Corps, U. S. A.
Stories by H. H. Arnold
Building American Aviation
How we are going About the Business of Winning the War in the Air
By Col. H. H. ["Hap"] Arnold, Chief of Air Division, Aviation Section, Signal Corps, U. S. A.