Nature’’s Entrepot: Philadelphia’’s Urban Sphere and Its Environmental Thresholds

Brian C. Black is professor of history and environmental studies at Pennsylvania State University, Altoona. He is the author of several previous books, including Petrolia: The Landscape of America’s First Oil Boom and Crude Reality: Petroleum in World History.
Michael J. Chiarappa is associate professor of history at Quinnipiac University. He is coauthor of Fish for All: An Oral History of Multiple Claims of Divided Sentiment on Lake Michigan.