Mellon Collection, Yale University Library MS. 6. 17 folios. Paper. 278x214mm. 15th Century [c. 1435.] [Alchemical Miscellany in Latin and Italian.] 1. Marbod. Liber lapidum preciosorum. 2. 73 miscellaneous procedures and remedies, in Latin. 3. An account of the astronomical positions of the signs of the Zodiac, their qualities, and important days, In Italian. 4. Zael (Thelque). De sigillis in lapidibus sculptis. 5. Michael Scot. A medical recipe, in Latin. 6. Two medical recipes, in Latin. 7. 13 alchemical procedures for colouring, glassmaking and majolica, in Italian. 8. 16 medical and alchemical recipes, in Italian.