Royal 9-A-XIV, 14th century, fols. 245-65, Physicorum libri 4.
Royal 13-A-XIV, #7, “Quoniam ut ait Tullius....”
Additional 11676, 13th century, anon. de philosophia naturali, in three parts.
Additional 26770, 13-14th century.
Digby 104, 13th century, fol. 176-, De elementis philosophiae naturalis.
University College 6, 14th century, p. 389, Philosophiae compendium, “Quoniam ut ait Tullius....”
Bodleian (Bernard) 2596, #10, in four parts; 3623, #30, fol. 187v-; 4056, #1.
BN 6656, 14th century, Philosophia, in four parts; 15025; 13th century; 16207, 13th century, fol. 58-.
Ste. Geneviève 2200, anno 1277, fols. 1-47, with colored figures, “Quoniam ut ait Tullius....”
Vienna 2376, 12th century, fols. 32v-64v, “Incipit prologus in phylosophyam Willehelmi. Quoniam ut ait Tullius....”