This stimulating collection of essays, a product of a dialogue among anthropologists, sociologists, and philosopher-historians, focuses on the newly created biomedical technologies and their practical applications. Drawing on ethnographic and historical case studies, the authors show how biomedical technologies are produced through the agencies of tools and techniques, scientists and doctors, funding bodies, patients, and the public. Despite shared concerns, the authors achieve no consensus about their research objectives, and deep epistemological divides clearly remain, making for provocative reading.