1. Paracelsus’s alchemical ideas have been examined in a number of specialist articles. For the purposes of the present article, as well as the sections devoted to alchemy in the monographic works by W. Pagel, Das medizinische Weltbild des Paracelsus. Seine Zusammenhänge mit Neuplatonismus und Gnosis (Wiesbaden, 1962), pp. 17-22; Paracelsus. Introduction to Philosophical Medicine in the Era of Renaissance (Basle-New York, 1982), pp. 258-78, particular reference has been made to the following: E. Darmstaedter, “Arznei und Alchemie. Paracelsus-Studien”, Studien zur Geschichte der Medizin, 20 (1931), pp. 1–77; W. Ganzenmüller, “Paracelsus und die Alchemie des Mittelalters”, Beiträge zur Geschichte der Technologie und Alchemie (Weinheim, 1956), pp. 300-14.
2. R.P. Multhauf, “Medical Chemistry and‘The Paracelsians’”, Bulletin of the History of Medicine, 30 (1956), pp. 329–46.
3. W. Schneider, “Der Wandel des Arzneischatzes im 17. Jhdt und Paracelsus”, Sudhoffs Archiv, 45 (1961), pp. 201–205.
4. T.P. Sherlock, “The Chemical Work of Paracelsus”, Ambix, 3 (1948), pp. 33–52.
5. G. Urdang, “How Chemicals entered the Official Pharmacopoeias”, Archives Internationales d’Histoire des Sciences, 7 (1954), pp. 303–14.