Daniel Sennert (1572-1637) was a professor of medicine at Wittenberg and was one of the first to introduce chymistry into the German academy. His ideas about medicine, chymistry, and atomism had a large influence within Germany and with later intellectuals such as Robert Boyle (1627-1691) and Joachim Jungius (1587-1657). Sennert has been called an archetypical transitional figure, and his ideas and works were some of the driving forces behind the ascendancy of chymistry within the university and in the Scientific Revolution at large, but many aspects of his work have received only scant attention. 

One particular desideratum is an analysis of Sennert's medicine. Close attention to Sennert's texts on medicine, including early ephemeral works such as dissertations and disputations, allows for a study of the interactions among Sennert's medicine and his experimental chymistry and atomism. I also give special attention to the controversy over atomism that arose in the final years of Sennert's life when Johann Freitag (1581-1641) brought charges of heresy against the Wittenberg Professor for his atomism and other ostensibly blasphemous teachings.