Dieses Buch bietet eine historische Darstellung der Theorie der vierjahrigen Sonnenkreise der Alten. Es richtet sich an Mathematiker, Astronomen und an alle, die sich fur die Geschichte der Astronomie interessieren. Der Autor prasentiert die Arbeit von Eudoxos und zeigt, wie diese in die Astronomiegeschichte eingebunden ist. 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 and "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.