Printed at Frankfurt, 1603 (pp. 285-291).
Rogerina major et minor, two medical treatises; neither by Bacon: one is by a Roger Baron.
MSS. Bodl. 2626; Cf. MS. St. Omer 624 (sec. xiii); Charles, R. Bacon, p. 75, note.
Cambridge, Publ. Libr. Ii, I. 16 (sec. xiv) and Ee, II. 20.
Brit. Mus.: Sloane 342, f. 146 (sec. xiii).
De Magnete. Inc. ‘Amicorum intime, quamdam magnetis lapidis.’
MS. Bodl. E Musaeo 155, pp. 414-426 (anon.): Charles (p. 18) ascribes it to Peter de Maricourt.
Calendar, wrongly attributed to Bacon; made by a Minorite at Toledo 1297, and extracted from the Tabulae Toletanae.
MS. Cott. Vesp. A. II. f. 2; Cf. Opus Majus p. 140 (ed. Venet, 1750).
Semita recta alchemiae (or, Liber duodecim aquarum).