Clifford Rosenberg, lead author of Concise Edition Volume 2 (Ph.D., Princeton University) is associate professor of European history at City College and the Graduate Center, CUNY. He specializes in the history of modern France and its empire and is the author of Policing Paris: The Origins of Modern Immigration Control between the Wars. He is working now on a book about the spread of tuberculosis between France and Algeria since the mid-nineteenth century.