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Places
- Boston (Mass.) -- Social life and customs1
- Canada -- Defenses1
- Canada -- Economic conditions1
- China -- Social conditions1
- Eklutna Dam (Alaska)1
- Europe -- Defenses1
- Europe -- Economic conditions1
- Europe -- Ethnic relations -- History -- 20th century1
- Germany -- Social conditions1
- Great Lakes (North America) -- Regulation1
- India -- Politics and government1
- India -- Social conditions1
- Levittown (N.J.)1
- Niagara Falls (N.Y. and Ont.)1
- Niagara Falls (N.Y. and Ont.) -- Regulation1
- Saint Lawrence Seaway1
- Scotland -- Intellectual life -- 18th century1
- United States -- Defenses1
- United States -- Economic conditions1
- United States -- Emigration and immigration -- Government policy1