Bodl.: Ashmole 1485, pp. 173-188 (sec. xvi), ‘Liber aquarum.’ _Thesaurus spirituum_, four treatises on the influence of planets, &c. _Inc._ ‘Hec est doctrina omnium experimentorum.’ MS. Brit. Museum: Sloane 3853, f. 3-40 (sec. xv). ‘Hec est tabula libri sequentis ... a quodam viro venerabili ordinis Minorum fratre summa composita et ordinata, et a diligencia M. Rogero Bakon ordinis Minorum nuper recognita, qui quidem liber pro omnibus hujus mundi experimentis sufficit,’ &c. ‘Explicit liber qui secundum Robertum Turconem et Rogerum Bakon fratrem Minorum Thesaurus spirituum nuncupatur.’ Cf. MS. Sloane 3850, f. 129{b}, _De nigromantia_, extracted from the above. _De fistula._ MS. Sloane 238, f. 214{b}-216{b} (sec. xv). ‘Secundum Rogerum Bacon ut habetur in libro qui dicitur Thesaurus pauperum[1361].’ _Necromanciae._ _Inc._ ‘Debes mundare manus et pedes ante visionem characterum.’ MS. Sloane 3884, f. 44{b} (sec. xv-xvi): ‘Haec sunt quae Rogerus Bacon de pura necromancia dixit.’ Other worthless recipes, fragments, &c., attributed to Bacon will be found in MSS:-- Bodl. 3, 349, ‘Index simplicium’; Ashmole 1423, iv. pp. 1-7 ‘Opus,’ ‘Opus Commune,’ ‘De conclusionibus’; Sloane 692, f. 102, ‘Finalis conclusio’; Harl. 2269, art. I; Cott. Jul. D. V. ‘De colore faciendo’; Digby 196, f. 163{b}, ‘Septem virtutes naturae’; Ashmole 1485 (sec. xv), various. _De intellectu et intelligentia_, and _De nutrimento_, which Charles considers genuine, are printed among the works of Albertus Magnus. MSS. Bodl.: Digby 67, f. 107 (sec. xiv), anon: and Digby 55, f. 193, anon: Alb. Magnus, _Opera_, V. p. 239 and 175 (Lugd. 1657). _Tractatus de veritate theologiae in septem partes distributus_, perhaps by Robert Bacon. _Inc._ ‘Flecto genua mea ad patrem domini nostri Jesu Christi.’ MS. Bodley 745 (= 2764) (sec. xiv) pp. 113-188: ‘Incipit tractatus fratris B.’ Part i. de trinitate dei; ii. de creatura dei; iii. de corruptela peccati; iv. de incarnacione verbi; v. de gratia spiritus sancti; vi. de medicina sacramentali; vii. de statu finalis judicii. _Tractatus super Psalterium_, probably by Robert Bacon. MS. _ibid._ pp. 193-497. ‘Incipit tractatus fratris R. Bacun, super psalterium. Beatus vir qui.’ _Excerptiones Rogeri Bacon ex auctoribus musicae artis_; or correctly, _Excerptiones Hogeri abbatis_, &c. MS. Cambridge:--Corp. Chr. Coll. 260 (_olim_ 189). Cf. MS. Milan:--Ambrosiana, _Rogerii de Baccono de generatione et corruptione, de Musica, de prospectiva_ (Montfaucon, p. 523). Cf. Opera Inedita, 295 _seq._ _De sacrae scripturae profundis misteriis authore Rogero Bacon._ MS. London:--Gray’s Inn, 17 (sec. xv); the title is in a later hand. It is probably a version of the Expositiones Vocabulorum de singulis libris Bibliae Rogeri compotistae monachi S. Eadmundi;