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). Printed at Louvain 1481, Lyons 1495, and in Goldast II, 957-976. Cf. _Dialogus_, Part III, Tract. iii. _Opusculum adversus errores Johannis XXII._ _Inc._ ‘Non invenit locum penitencie Johannes XXII.... Ut pateat evidenter, quod retractatio quam Johannes XXII fecisse refertur, ipsum ab hereticorum numero non excludit.’ MS. Paris:--Bibl. Nat. 3387, fol. 175-213{b} (sec. xv). _Tractatus ostendens quod Benedictus Papa XII nonnullas Johannis XXII haereses amplexus est et defendit_; 7 books (written c. 1338). _Inc. prol._ ‘Ambulavit et ambulat insensanter non re sed nomine Benedictus XII in viis patris sui Johannis vidz. XXII.’ _Inc. lib. i_, ‘Dogmatum perversorum que Johannes XXII pertinaciter tenuit.’ MS. Paris:--Bibl. Nat. 3387, fol. 214{b}-262{a} (sec. xv).