Florence, Biblioteca Nazionale MS. Palat. 955 [860 - 21,2.] 89 folios. Paper. 278x207mm. 15th Century. 1. f1-30 Christophorus Parisiensis. Lucidario dell' Arte transmutatoria dei Metalli [in Italian.] 2. f31-44 Albertus Magnus. [The beginning of the 'Semita recta', in Italian.] 3. f44-50v Lumen luminum [in Italian.] 4. f50v-54 A fare Lapis philosophorum [in Italian.] 5. f55-69 Liber de Perfecto Magisterio [in Italian.] 6. f70 [Arnold of Villa Nova] Rosario de Filosofi [in Italian.]