I am Fulian Xiao, a Ph.D. candidate in Medical History at Fudan University, used to be a Visiting Student Research Collaborator in the Department of History at Princeton University. My doctoral research, under the guidance of Dr. Xi Gao, head of the Department of Modern Chinese History at Fudan, and Dr. He Bian, associate professor in History and East Asian Studies at Princeton, investigates the pharmaceutical research conducted by missionaries in West China. This project explores the intersections of missionary activity, regional medicinal knowledge, and Sino-Western exchange in China’s borderlands.