Thomas O'Brien Hubbard

The Mechanics of the Aeroplane: A Study of the Principles of Flight

Émile Auguste Duchêne

Épuisé

Émile Auguste Duchêne The Mechanics of the Aeroplane: A Study of the Principles of Flight

The Aerial Ship

John Henry Ledeboer

Épuisé

John Henry Ledeboer The Aerial Ship

The Flight of Birds

John Henry Ledeboer

Épuisé

John Henry Ledeboer The Flight of Birds