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included with (1) by Bridges in part iv. of the Opus Majus. The author of the Catalogue thinks that this really belongs to the Opus Minus.
(5) De Laudibus Mathematice (fifteenth-century title) another revision of what occurs in No. 1 (above) and in part iv. of Opus Majus.
(6) The present work.
(7) The third book of the pseudo-Ovidian poem, “De Vetula,” forged in Ovid’s name, apparently by Richard de Fournival, Chancellor of Amiens (c. 1246). (See the Introduction by Cocheris, La Vieille, 1861, an edition of the medieval French translation of the work.) It is presumably inserted here because quoted by Bacon; cf. Op. Maj., ed. Bridges, p. 263.
(8) Another Baconian fragment on Communia Naturalia.
(9) A fragmentary and very corrupt copy of chapters forming the opening part of diffinitio quarta in a scheme wherein languages, logic and mathematics appear to have formed diff. i.-iii. The matter is in part the same as that of the Communia Naturalia in art. (8) above.
I am indebted to Mr. Gilson of the British Museum for the use, prior to publication, of the new catalogue of Royal MSS., from which I have derived the preceding information. I append the description of the present work in the new Catalogue:—
“The first part, on the three causes of error (cf. the first three causes in Op. Maius, part i.) is complete (extending to little more than three pages), and enough (dist. i., capp. 1-6) exists of the second to give an idea of its scope, which seems to be confined to a study of the logical apparatus of scholastic disputation, containing a discussion of that vis significativa of words to which the author alludes in Op. Tertium, cap. xxvii. as an important branch of grammar. It seems, therefore, improbable that Little is right in supposing that the quarta pars Compendii Studii Theologie in 7 F. viii. belongs to the same scheme. There is, however, some reason for supposing that art. (9) [see above] below really forms part of it.”
I do not venture to express an opinion as to the com-