Ashmole 1428 (II).
Late 13th century. Circa Instans.
All Souls College, Oxford.
13th century. De medicinis simplicibus sive de virtutibus Herbarum libellus.
Balliol College, Oxford.
Late 13th century. De simplicibus medicinis.
Corpus Christi College, Cambridge.
13th-14th century. Liber cogitanti michi de virtute simplicium medianarum.
Trinity College, Cambridge.
13th-14th century. Herbarium.