In the same library MS 139, 14th century, besides the Semita recta at fols. 3-35—this time Albert is not named as its author—occurs at fols. 107-21, “Incipit libellus ab Alberto compositus. Quoniam ignorantis ... / ... dum regnat Iupiter.”
Also in MS 270, II, 15-16th century, fol. 77, “Alberti Magni Alchymia. Callixtenes unus philosophorum ... / ... siccum.”
In MS 270, X, at fol. 99 the Speculum secretorum, etc., is again ascribed to Albert; and in MS 270, XV, fol. 3-, is “Ars experimentorum Alberti Magni. Sciendum vero ... / ... viscositate malve.”
[1876] Sloane 323, 14th century, fols. 1-84, “Practica Fratris Alberti in alchimiam, que ab eodem dicitur sec. sec.” The work is said to have been printed in the Theatrum Chymicum, II, 423.
[1877] Ibid., fol. 8r. The previous citation of Albert was at fol. 7v.
[1878] Arundel 164, written in 1422, fols. 127v-131, “De occultis nature,” opening, “In mutue allocutionis tractatu,” and closing, “sicut qui cum arcu sine torta sagutur (sagittur?) deo gratias.”
[1879] CUL 220, 16th century, occupying two leaves in an alchemical miscellany. It opens, “Aqua Mercurius et oleum sulphuris. Opus istud multis diebus abscondebatur....”
Possibly the following are also distinct treatises, but I do not have their Incipits and Explicits: CLM 12026, 15th century, fol. 32, Alberti de Colonia ars alchymiae; Wolfenbüttel 676, anno 1444, following the Semita recta at fols. 34-36, Varia Alberti Magni chymica; Riccard. 119, following the Semita recta, which is #32 in this miscellany, comes #33, an Alchimia ascribed to Albertus Magnus, while the second treatise bearing #37 (at fol. 177r) is Alberti quidam Tractatus.
[1880] It is included in vol. 21 of the edition of Lyons, 1651, by R. P. Jammy; and by Borgnet, vol. 37; 545-73, Alberti Magni libellus de alchimia. It had previously been printed at Basel, 1561, and Urcellis, 1602-1608, Theatrum chemicum, pp. 485-527. It is the same as the treatise called Semita recta in the MSS. Another MS of it is Corpus Christi 226, 15th century, fols. 59-69.
[1881] See Denifle (1886), 236.