In his Catalogue of the Bruges MSS., Haenel reads _ethicorum_ instead of _elenchorum_. Ockham seems to have written no distinct work on morals, though another is attributed to him by a careless blunder. Caius College MS. 200, § 3, contains, according to Smith’s catalogue, _Correcciones Occami_ (_Occani_ in the old catalogue of 1697) _in Oculum moralem_. The MS. really reads: ‘Correcciones octaui capituli de Ira. (_Inc._) nisi tibi iratus fuissem. Refert eciam Valerius. (_Expl._) et ei reuelauit archana. Cum igitur sobrietas.’ In other words, it is merely a fragment of chapter viii. of the well-known _Oculus moralis_ attributed to Grostete or Peter de Limoges. See e.g. MS. Bodl. Laud. Misc. 677, fol. 180 b, 2nd column. _Summa logices_ (_ad Adamum_): 3 parts. _Inc._ ‘Dudum me frater et amice.... Omnes logicae tractatores.’ MSS. London:--Brit. Mus., Arundel 367 (sec. xiv). Cambridge:--Caius Coll. 464[1460]: ‘Logica Gul. de Occham in sex tractatus divisa,’ viz. (1) de terminis, (2) de propositionibus, (3) de Sillogismo simplici, (4) de S. demonstrativo, (5) de S. topico, (6) de S. elenchorum, (written at Magdeburg, A. D. 1341): also Peterhouse 217. Paris:--Bibl. Nat. 6430, 6431, 6432 (sec. xiv); Bibl. Mazarine 3521 (sec. xiv). Laon 431 (sec. xiv). Basel F ii. 25 (written at Oxford, A. D. 1342). Florence:--Laurentiana, _ex Bibl. S. Crucis_, Plut. xii. Sin. Cod. ii (sec. xiv), six books. Printed at Paris 1488, Venice 1522, Oxford 1675, &c. _Quaestiones in octo libros physicorum._ _Inc._ ‘Valde reprehensibilis.’ MS. Oxford:--Merton Coll. 293 (sec. xiv). Cf. Vienna:--Bibl. Palat. 5460 (sec. xv). Printed at Rome 1637[1461]. In the Bibl. Nat. at Paris, MS. 17841 (sec. xv) contains _Quest. Okam super lib. Physic. et quotlibeta_. The first leaf seems to have been misplaced; _inc._, ‘(U)trum deus sit super omnia diligendus: quod non.’ The second leaf begins: ‘Circa materiam de conceptu questio (?) utrum conceptus sit aliquid fictum’: the questions on the physics end on fol. 26. They appear to differ from the above[1462]. _Questiones Ockam super phisicam et tractatus ejusdem de futuris contingentibus._ MS. Bruges 469 (sec. xiv). _Summulae in libros physicorum_ (called by Leland, _De introitu scientiarum_): 4 parts. _Inc. prol._ ‘Studiosissime saepiusque rogatus.’ _Inc. Pars. I._ ‘Solent ante preambula indagare sapientes ante scientie ingressum de ipsis scientiis.... Primo de ejus unitate.’ MS. Rodez, 56, p. 107 (sec. xv), ‘Philosophia naturalis.’ Printed at Venice 1506, and elsewhere. _Quaestiones_ (or _Commentarii_) _in quatuor libros Sententiarum._ _Inc._ ‘Circa prologum primi libri Sententiarum quero primo utrum sit possibile intellectui viatoris.’ MSS. Oxford:--Balliol Coll. 299, f. 7 (sec. xiv); Merton College 100 (sec. xiv). Paris:--Bibl. Nat. 15561, f. 246 (sec. xv). Basel A vi. 12.