Mellon Collection, Yale University Library MS. 33. 128 folios. Paper. 191x145mm. 16th Century [c. 1550.] 1. [Alchemy, in English.] 2. Jean de Meung. Liber Lapidis mineralis. [Book II only, translated into English by Robert Freelove, 1522.] 3. The Practys of Lyghtes. 4. Roger Bacon or Johannes Sawtre. Radix mundi [translated into English by Robert Freelove, 1550.] 5. Rudianus. Liber trium verborum [translated into English.] 6. Khalid ibn Yazid. Liber secretorum philosophorum [translated into English, 1542.] 7. [Alchemy, in English.]