Geological Survey of New Jersey. Annual Report 1880. Companion text: Annual report of the State Geologist, for the year 1880 / George H. Cook. Trenton. : New Jersey Geological Survey, 1880. 220p. Alternate title: Progress map of the State of New Jersey, 1880. From U.S. Coast Survey records, N.J. geological and topographical surveys and various local surveys to date. Another copy with source publication. Shows primary and secondary triangulation sites, meteorological stations, and iron mines.