Concerning Preparations in Alchemical Medicine is a book written by Paracelsus, also known as Theophrastus. It is a comprehensive guide to the preparation of alchemical medicines, which were believed to possess healing properties. The book covers a wide range of topics related to alchemy, including the nature of the elements, the properties of metals, and the processes involved in the creation of alchemical medicines. Paracelsus was a prominent figure...