Subject: Canon Law
Author of work: Gregorius IX
Title: Decretales
Subject: Pastoralia
Author of work: Ricardus de Wetheringett
Title: Summa 'Qui bene presunt'
Subject: Civil Law
Author of work: Justinianus
Title: Digestum vetus
Subject: Philosophy
Title: Comment. on Aristotle, De generatione et corruptione
Subject: Philosophy
Author of work: Aristoteles
Title: De generatione et corruptione
Subject: Canon Law
Author of work: Gregorius IX
Title: Decretales
Subject: Theology
Author of work: Hugo de Folieto
Title: De claustro animae
Subject: Natural History
Title: Meteorology
Subject: Canon Law
Author of work: Gregorius IX
Title: Decretales
Subject: Logic
Title: Vetus logica (Boethius, De differentiis topicis)