Ce livre est un guide sur les premiers ballons dirigeables et aéroplanes. L'auteur, Alphonse Berget, était un ingénieur français du XIXe siècle et expert de la première génération des aéronefs. Ce livre est une ressource inestimable pour tous ceux qui s'intéressent à l'histoire de la technologie de l'aviation. Les lecteurs intéressés par l'aviation et les inventions techniques apprécieront cette oeuvre pour son expertise et ses précisions techniques. This work has been selected by scholars as being culturally important, and is part of the knowledge base of civilization as we know it. This work is in the "public domain in the United States of America, and possibly other nations. Within the United States, you may freely copy and distribute this work, as no entity (individual or corporate) has a copyright on the body of the work. Scholars believe, and we concur, that this work is important enough to be preserved, reproduced, and made generally available to the public. We appreciate your support of the preservation process, and thank you for being an important part of keeping this knowledge alive and relevant.