Constantine of Pisa: The Book of the Secrets of Alchemy

[Paul Ferguson]

"The Liber Secretorum Alchimie, dating almost back to 1257, presents an attempt at introducing alchemy into the field of Aristotelian natural science (philosophy), with the purpose of providing the practice of manipulating metals with a solid theoretical foundation. Arranged from lecture notes by its author, a student of medicine originating from Pisa, it allows a direct insight into mid-13th century university teaching of natural science, which included astronomical, astrological, meteorological and geographical material."

https://brill.com/display/title/1367