- Octavo, dark green cloth titled in gilt on the spine, in a printed buff dust wrapper. The covers are slightly rubbed and soiled. The dust jacket is darkened and soiled with a couple of tears to the jacket's top edge with a small piece out from the top of the front panel. x & 496 pages. The front hinge is cracking at the title page. Good.
Subtitled as follows on the front panel of the dust jacket "The Latin text, with contemporary commentaries and English translation, of the manual of astronomy most widely used from the thirteenth to the seventeenth century".
"The Sphere of John of Sacrobosco was for centuries the best and best-known manual of astronomy by a Western author. Hence it is a document of prime importance in the history of science and of medieval culture. Its literary style illustrates the influence of the classics in the Middle Ages. An admirable textbook, it is of note in the history and methodology of education.... Many of the comments and glosses on the Sphere throw light on the history of scholasticism and the scholastic method. The hitherto unpublished commentary by Robert of England, with English translation, follows the text and translation of the Sphere. Other commentaries included are the one ascribed to Michael Scot and that by Cecco d'Ascoli...." [Quoted from the dust jacket's blurb]. Dust jacket present. First Edition.