Philosophicarvm et astronomicarvm institvtionvm, Gvilielmi Hirsavgiensis olim abbatis, libri tres
Subtitle: Opus uetus at nunc primum euulgatum & typis commissum
Publisher: Excvdebat Henricvs Petrvs
Published: 1531
Place of publication: Basileae
Language: lat
Number of pages: 77
Subjects: Astronomy; Early works to 1800; Science; Atomic theory
Notes: Initials; side notes.

The text here wrongly attributed to Wilhelm, abbot of Hirsau, is identical with the De philosophia mundi of Guillaume de Conches, known in its later revised form as the Dragmaticon or Summer super naturalibus quaestionibus et responsionibus. It has also been wrongly ascribed to the Venerable Bede and to Honorius Augustodunensis: cf. A catalogue of sixteenth century printed books in the National Library of Medicine.