Definition of immigration:
emigre, transmigration, refugee, expatriate, emigration, settlement, change of allegiance, immigrant, in-migration, crossing the border, migrant, entrance, asylum, emigration, approach, exodus, migration, migration, residence, exile, emigrant.
- "Contemporary American History, 1877-1913", Charles A. Beard.
- "Stories of the Badger State", Reuben Gold Thwaites.
- "The Killer", Stewart Edward White.