Subject
- Nautical charts1
- Navy-yards and naval stations1
- Ordovician Geologic Period1
- Outdoor recreation1
- Pan American Highway System1
- Paper industry1
- Prisoners of war1
- Pulp mills1
- Shipyards1
- Spherical projection1
- Stratigraphic correlation1
- Street-railroads1
- Surveys1
- TN1
- Territorial expansion1
- Textile fabrics1
- Textile industry1
- Vegetation and climate1
- Water-supply1
- Waterworks1
