First published in 1877, 'On the Theory of the Moon and on the Perturbations of the Planets' is a groundbreaking work of astronomical theory. Drawing on the latest data and computational methods of his era, the author presents a complex mathematical model of lunar motion and planetary perturbations. Though the book's technical details may prove challenging for non-specialists, its importance to the field of astronomy cannot be overstated. 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.