MS. Bodl.: Digby 67, fol. 117 (sec. xiii); fragment.

Tractatus de signis logicalibus. Inc. ‘Signum est in predicamento relationis.’

MS. Bodl.: Digby 55, fol. 228 (sec. xiii).

Opus Majus, written A. D. 1266-1267; 7 parts. Inc. ‘Sapientiae perfecta consideratio consistit in duobus.’

MSS. of the whole work: Oxford:—Bodl. Digby 235 (sec. xv and xiv).

Dublin:—Trinity Coll. 81 (= 221); a transcript of this is in Trinity Coll. Cambridge.

Paris:—Bibl. Mazarine 3488 (sec. xviii).

Rome:—Vatican 4086 (Montfaucon’s Catal. p. 114), ‘Rogerii Baconi causae universales in septem partes distinctae’; probably the Opus Majus.

Parts I-VI edited by Jebb, 1733: reprinted at Venice 1750.

The parts often occur separately.