Learning the Chymical Compromise: Paracelsian and Galenic Medicine in Marburg Disputations on Chymiatria

The chair of chymiatria created at the University of Marburg was among the earliest academic initiatives aiming to integrate chymistry into the medical curriculum. If its practical applications in pharmacy and its relationship with patronage have been examined by historians, the theoretical part of the chymiatria programme still remains to be explored. In the form of student disputations and dissertations held or presided over by Heinrich Petraeus, a professor of medicine at Marburg and Johannes Hartmann's son-in-law, "chymiatric" essays expounded various medical issues. Centred on pathology, therapy, and physiology, these theoretical explanations proposed a "hermetic-dogmatic" interpretation merging the views of Paracelsus and Galen. This article examines these disputations and their stance concerning the living body, sickness, and treatment, and how they shaped the status of chymistry as an art and a science on the verge of institutionalisation.