The last sentence Goldast surmises to be an addition of the editor, Ascensius; but it occurs at the end of the Dijon MS., and both Goldast and Riezler are probably mistaken in thinking that Ascensius had the whole work before him and arbitrarily omitted Treatises III-IX[1467]. These were probably never written. The Lambeth MS. (the only MS. in England which contains Part III) and one version in the Mazarine MS. end with the words ‘passibilis et mortalis,’ like the printed editions, with the colophon (in Lambeth MS.): ‘Dyalogorum venerabilis Guillermi Okam finis.’ The five other MSS. in Paris, which contain Part III, leave out the last seven chapters of the printed edition, and the Auxerre and Toulouse MSS. likewise do not go beyond the third book of Treatise II. It is possible that the Vatican and Basel MSS. may supply the remaining treatises; but this is unlikely. About the year 1400, Peter d’Ailly, who must have had exceptionally good opportunities for getting information[1468], wrote a summary of the Dialogus[1469]. In this he omits Treatise I of Part III, and concludes with the 16th chapter of the third book of Treatise II (like the Parisian MSS.), adding:
‘et non plus de hoc notabili opere potui reperire’[1470].
Several of Ockham’s other works correspond in substance to the projected treatises of Part III; these will be noted in due course.
Defensorium (de paupertate Christi) contra Johannem XXII (written between 1335 and 1349). Inc. ‘Universis Christi fidelibus.... Primus error est quod Dominus noster.’
Printed at Venice 1513, and by Edw. Brown, Fascic. Rerum expetend. II, 439-464.
De imperatorum et pontificum potestate; 27 chapters or paragraphs. Inc. prol. ‘Universis Christi fidelibus presentem tractatulum inspecturis, frater Willelmus de Okkham.’ Inc. cap. i. ‘Si reges et principes ecclesiarum.’
MS. Brit. Museum: Royal 10 A, xv (sec. xiv).
Tractatus adversus errores Johannis XXII, or Compendium errorum papae (written between 1335 and 1338). Inc. ‘Secundum Bokkyg (?) super sacram scripturam.’
MSS. London:—Lambeth 168, fol. 289-314 (sec. xv).
Paris:—Bibl. Mazarine 3522, fol. 298-310 (sec. xiv).