The Grey Friars in Oxford

by A. G. Little

MSS. Bodl. Canon. Misc. 334, fol. 32; 480; fol. 23^b (the author’s name is obliterated in the MS.).

Tractatus de erroribus medicorum[1358]. Inc. ‘Vulgus medicorum.’

MSS. Oxford: Bodl. Canon. Misc. 334, fol. 42; 480, fol. 30 (author’s name obliterated); E Musaeo 155, pp. 669-689. Corpus Ch. Coll. 127 (sec xv).

Canones practici de medicinis compositis componendis, ‘Cap. i. Extractum de libro septimo Serapionis qui est antidotarium suum et est theoricum capitulum.’ (13 chapters.) Inc. ‘Necesse est illi qui vult componere medicinas.’ ‘Explicit tractatus de compositione medicinarum per fratrem rugerium bacon editus.’

MS. Bodl. Canon. Misc. 480, fol. 38^b-47.

De leone viridi (on the manufacture of mercury); only the summary by Raymund Gaufredi is extant. Inc. ‘Verbum abbreviatum.’

MSS. Brit. Mus.:—Sloane 692, f. 46 (sec. xv). Oxford:—Corpus Chr. Coll. 277. Printed at Frankfurt, 1603 (Sanioris medicinae, p. 264), &c.

A number of works on alchemy are attributed to Roger Bacon erroneously or without any probability.

De consideratione quintae essentiae; 3 books.