Possible Clues:

• Forerunner of chemistry
• Medieval chemistry
• Middle Ages pseudoscience
• Old form of chemistry
• Subject studied by Isaac Newton
• Attempt to transmute beer around church supported by goodness!
• Concoction of clay to limit a bit of a cough? Not proper science
• Forerunner of eleven ac
• Skill in the online game World of Warcraft
• Medieval activity to turn base metal into gold