Most Popular Books
- Report on the Geology and Mining Resources of That Part of the Lackawanna Coal Basin Which Includes the Lands of the Delaware, Lackawanna, Andwestern Railroad Company, and Those of the Lackawanna Iron
- Annual Report on the Geological Survey of Pennsylvania
- Address Delivered at the Meeting of the Association of the American Geologists and Naturalists
- Description of the Geology of the State of New Jersey: Being a Final Report
- Address Delivered at the Meeting of the Association of the American Geologists and Naturalists