Vienna 2296, 13th century, fols. 116r-122r, Pseudo-Galenus, Liber secretorum ad Monteum.
Vienna 2395, 13th century, fols. 65r-72r, “Hec sunt secreta Galeni a Gerardo Cremonensi translata de arabico in latinum.”
Vienna 2306, 14th century, fol. 27v, Pseudo-Galenus, Liber in medicatione aegritudinum ad Monteum, “Rogasti me amice montee.”
Wolfenbüttel 1014, 15th century, fols. 72v-73v, Secreta Galieni. Preceded by Experimenta magistri Bernhardi, which is presumably the Experimentarius of Bernard Silvester, and followed by fols. 74-77, Experimenta varia magistri ... (name erased), and fols. 79-81, Experimenta ex libris medicinalibus diversis. In the same MS at fol. 102, De libro Kyranidis Kyrani, regis Persarum.
Wolfenbüttel 2156, anno 1452, fols. 178-9, Quatordecim experimenta de secretis Galeni ad amicum quendam. At fols. 427-35 are the Medical Experiments of Rasis.
Wolfenbüttel 2841, anno 1432, fols. 98v-107v, Liber secretorum Galieni translatus ex Arabico in Latinum a magistro Gerardino Cremonensi.
Escorial H-III-2, 15th century, fols. 9-25, “Hec sunt secreta galieni. Verba galieni. Rogasti me amice montee ut describerem tibi librum ... / ... Quod si ceciderit alius liber ab isto transferam ipsum. Explicit liber secretorum Galieni.”
The brief descriptions in the MSS catalogues do not always make clear whether the Secrets of Galen in question is our treatise or not.
Bourges 299, 14th century, fols. 97v-105, “Liber de secretis secretorum Gal.” is probably our treatise. This MS contains minor medical works of Galen.
Vienna 5435, 15th century, fols. 265-75, Pseudo-Galenus, Liber secretorum; followed at fols. 276-83, by Pseudo-Galenus, Liber experimentorum et secretorum. Probably our treatise and the Medical Experiments.