Subject Region
South Carolina
8
United States
7
Georgia
4
Asia
3
Burma, Lower
3
China
3
Guangzhou
3
Cuba
2
Great Britain
2
Guinea
2
Nigeria
2
Southern States
2
Africa
1
Alexandria
1
Burma
1
Cuenca del Guayas
1
Ecuador
1
England
1
Guayas River Watershed
1
Japan
1
Liberia
1
Madagascar
1
Mississippi
1
Mississippi River Valley
1
Natchez
1
Taiwan
1
Venezuela
1
Virginia
1