Presentation Title: Two Apothecaries at a Crossroads: Medicinal Plants and the Diverging Futures of Pharmacy, 1880–1939
Speaker: Dr. Matti Leprêtre, Fulbright Scholar at New York University and a historian of science and pharmacy. He received his PhD in History of Science from the École des hautes études en sciences sociales (EHESS) in 2026.
Description: What happened to medicinal plants when pharmacy became a global industry? At the turn of the twentieth century, plants acquired several possible futures: they could remain raw drugs identified by apothecaries; become crops reorganized by experimental science; serve as industrial resources from which ever more substances were extracted; or be reimagined as therapeutic wholes whose action exceeded that of any isolated constituent.
This paper follows those transformations through two apothecaries who stood at the center of modern pharmacy but have rarely been considered together. Carl Scriba directed the plant-based factories of E. Merck, then the world’s second-largest pharmaceutical company and a global leader in medicines derived from plants. Alexander Tschirch was one of the most influential figures in the transformation of academic pharmacy and pharmacognosy in the German-speaking world and beyond. Viewed from Scriba’s factory and Tschirch’s university institute, medicinal plants emerge as contested scientific, commercial, and therapeutic objects.
The First World War briefly drew their projects together, as shortages made plant supply a common problem for apothecaries, scientists, manufacturers, and states. Their later fortunes diverged sharply. Scriba’s industrial order was dismantled, and its architect largely disappeared from historical memory. Tschirch remained a celebrated patriarch, while his language of plant complexity migrated into phytotherapy and, under National Socialism, toward increasingly ideological, vitalist, and mystical claims about wholeness. Their crossed lives reveal not only what an apothecary could become, but what a medicinal plant could become when pharmacy became an industry.