Description: "Production of phosphate, pyrite, and sulphur in North America in 1913... Each dot represents 1 per cent of world's production. A cross represents less than 1/2 per cent of world's production." — Department of the Interior, 1921
Place Names: A Complete Map of North America, Bahamas, Canada, Cuba, Mexico, United State
ISO Topic Categories: boundaries,
economy,
inlandWaters,
oceans
Keywords: Production of Phosphate, Pyrite, and Sulphur in North America, physical, political, statistical, physical features,
geological, country borders, industry,
economic, boundaries,
economy,
inlandWaters,
oceans, Unknown, 1913
Source: Department of the Interior , World Atlas of Commercial Geology (Washington, DC: Department of the Interior , 1921) Plate 50
Map Credit: Courtesy the private collection of Roy Winkelman |
|
