Vol.I & II: I. Mathematical aids fluid Mechanics, Historical sketch; II. General Aerodynamics Theory.-- Vol.III & IV: III. Mechanics of viscous fluids and of compressible fluids: Wind tunnels; IV: Applied aerofoil theory; Airplane body drag & influence on lifting system, etc. -- Vol V & VI: V. Dynamics of the Airplane; Airplane performance; VI. Airplane as a whole; Aerodynamics of airships, etc