Sacrobosco (Johannes de) Libellus de Sphaera

Sacrobosco (Johannes de) Libellus de Sphaera,preface by Melanchthon, woodcut device on title, woodcut illustrations, 1 volvelle present only (of 3), title dust-soiled with ink stamp, repair to lower fore-corner and some fraying, damp-stain affecting top edge, tear to 1 f., slight insect damage to E4-E6, [Honeyman 2732], Wittenberg, Petrus Seitz, 1543; bound with Libellus...de anni ratione, seu ut uocatur uulgo, Computus Ecclesiasticus, preface by Melanchthon, woodcut illustrations, without the volvelles, light staining affecting lower half of some ff., n.p., n.d. [?Paris, ?1538/43] bound with Baïf (Lazare de) Commentarius de uestium generibus et uocabulis..., lacking last f. of index, damp-staining throughout, E3-F2 frayed at edges, small stamp on title, [Adams B39], n.p., [1530], there are 2 folding tables (stained and with tape reinforcements), loose at the end of the volume, probably from the first work, together in later leather-backed antique-style boards, 8vo & 12mo.

***The first mentioned is an early edition of one of the most important astronomical works of the Middle Ages. Sacrobosco was a canon regular of the Order of St Augustine at the monastery of Holywood, Nithsdale, Scotland in the early thirteenth century, and spent his later years in Paris as a professor of mathematics and astronomy..