1773. Harvard Map Collection, Harvard College Library, Harvard University. Library. Open Collections Program, Whitchurch, William., W. Strahan and T. Cadell (Firm), and Hawkesworth, John, 1715?-1773. This layer is a georeferenced raster image of the historic paper map entitled: Chart of part of the South Sea, shewing the tracts & discoveries mad... Harvard Map Collection, Harvard College Library.