Philosophicarum et astronomicarum institutionum Guilelmi Hirsaugiensis olim abbatis libri tres, Basel, 1531.
Bede, Opera, 1563, II, 311-43, Περὶ Διδάξων, sive Elementorum Philosophiae Libri IV.
Honorius of Autun, De philosophia mundi, Migne, PL vol. 172.
Dragmaticon seems to be have been printed but once under the title,
Dialogus de substantiis physicis confectus a Guillelmo aneponymo philosopho, Strasburg, 1567.
In the following list of MSS, which is no doubt far from complete, I have attempted to distinguish between the Philosophia and Dragmaticon but have often had to rely only upon the notices in catalogues which frequently do not give the opening words or other distinguishing marks. The following MS seems unusual in apparently containing both versions, if by “eiusdem philosophia secunda” is indicated the Dragmaticon.
CLM 564, 12th century, with figures, fol. 1-, Willelmi de Conchis philosophiae libri IV, fol. 32-, eiusdem philosophia secunda.
MSS of the Philosophia
Egerton 935, 12th century, small quarto, Phylosophia Magistri Willihelmi de Conchis, cum figuris.
Egerton 1984, 13th century, fols. 2-33.