Note 2538 — Chapter LXV
Reading edition
Digby 119, early 14th century, fols. 205-6, Liber Rasis de aquis 12 optimis, opening, “Aqua mollificatissima et nigrissima.”
Sloane 1754, 14th century, fol. 112r, “Incipit liber rasis de 12 aquis preciosis. Libelli huius series 12 splendet capitulis. Primum de aqua rubicunda. Secundum de aqua penetrativa. Tertium de aqua mollificanti et ingrediente. Quartum de aqua eiusdem ponderis et magni nominis. Quintum de aqua ignita. Sextum de aqua sulphurea. Septimum de aqua cineris. Octavum de aqua aurea. Nonum de aqua martis de albatione. Decem de aqua almarcaside et argenti dissolutione. Undecimum de aqua in mercurii congelatione et conglutinatione. Duodecimum de aqua perpetua.”
In the same MS at fol. 78r-, “Incipit 12 aquarum liber. Libelli huius series duodecim splendet capitulis. Primum de aqua rubicunda. Secundus de rubicundo ere. 3m. de rubigine. 4m. de croceo ferreo. 5m. de rubicundo lapide. 6 de aqua sulphurea. 7 de aqua cineris. 8 de gummi rubicundo. 9 de aqua penetrativa, 10 de aqua marchaside in argenti dissolutione. 11 de aqua vitrea. 12 de fermento.”
As the Incipits and chapter headings suggest, the two treatises are in portions identical, elsewhere divergent. Such is also apt to be the case where the work occurs in different manuscripts.