This classic work, first published in 1680, presents the first successful attempt to explain the mechanics of bird flight. Using a combination of careful observation and mathematical analysis, Borelli and his collaborators were able to identify the key factors that enable birds to fly, including wing shape, air pressure, and muscle strength. The book is an essential resource for anyone interested in the science of flight, as well as for bird enthusiasts of all kinds.

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.