Alchemy over the centuries: what changed with the recipes?
Alchemy brought together work with materials, written traditions, and spiritual readings. To link them, we need the date and setting of each source.

How alchemy changed over time
The Oxford chapters introduce long-term alchemical history and the sacred art of alchemy. They are scholarly orientations to a field with changing practices and meanings. Oxford Handbook of Science and Medicine in the Classical World ↗
A recipe and a spiritual reading have different roles
Identify whether a claim concerns materials, a written procedure, a philosophical explanation, or a later interpretation. They may coexist without being identical. Oxford Handbook of Science and Medicine in the Classical World ↗
Follow a concrete operation
Track a recipe or term through dated editions and witnesses. Shared vocabulary alone cannot establish uninterrupted transmission across centuries. Oxford Handbook of Science and Medicine in the Classical World ↗