3. Problems of congestion and assimilation ([410]).
4. Relations to labor and illiteracy ([582]-[586]).
5. Oriental immigration ([583]).
6. The restriction of immigration ([583]-[585]).
Expansion of the United States
I. Territorial growth.
1. Territory of the United States in 1783 ([134] and [color map]).
2. Louisiana purchase, 1803 ([188]-[193] and [color map]).
3. Florida purchase, 1819 ([204]).