Two other treatises on grammar by Roger Bacon are extant, and probably formed part of the Comp. Phil.[1352]:
(1) Inc. ‘Primus hic liber voluminis grammatici circa linguas alias a Latino.... Manifestata laude et declarata utilitate cognitionis grammatice’ (chiefly on Greek grammar).
MSS. Brit. Museum: Cotton Jul. F viii. f. 175 (sec. xv), a fragment.
Oxford:—Corpus Christi Coll. 148 (sec. xv); Univ. Coll. 47 (sec. xvii).
Douai, 691 § 1 (sec. xvii), copied from Univ. Coll. MS. 47.
(2) Inc. ‘Oratio grammatica autem fit mediante verbo.’ ‘Explicit summa de grammatica magistri Rogeri Bacon.’
MS. Cambridge:—Peterhouse, 1, 9, 5, James 3 (sec. xiv).
Vol. II. Mathematics; 6 books:
i. Communia mathematicae, ii-vi. Special branches of mathematics.
Liber i. Inc. ‘Hic incipit volumen verae mathematicae habens sex libros. Primus est de communibus mathematicae, et habet tres partes principales.’