Mellon Collection, Yale University Library MS. 62. 158 folios. Paper. 97x142mm. 17th Century [1651-1655.] 1. Lapis philosophorum, seu tinctura phisica [in Latin, followed by an English version.] 2. [Alchemical recipes, procedures and extracts, in English and Latin.] 3. [Astrology.] 4. Walter Charleton [Notes extracted from his book.] 5. [Alchemical and medical recipes, and aphorisms.] 6. George Rives, goldsmith. Account of the making of gold from lead at Bath by a certain Mervin in 1651.] 7. Dr Start. [Notes taken from his experiments, and other matter.] 8. Letter of a divine philosopher.