11. Assisted immigration. (R. Mayo Smith, Emigration and Immigration, chapter ix.)
12. Geographical distribution of immigration. (Semple, American History and its Geographic Conditions, chapter xv.)
13. Economic aspects of immigration. (Consult any standard text on immigration.)
14. "Birds of passage." (Consult any standard text on immigration.)
15. Immigration and the trade unions. (Carlton, History and Problems of Organized Labor, chapter xi. See also any standard text on immigration.)
16. Social aspects of immigration. (Consult any standard text on immigration.)
17. Political aspects of immigration. (Consult any standard text on immigration.)
18. Chinese immigration. (Coolidge, Chinese Immigration; Hall, Immigration, chapter xv; Jenks and Lauck, The Immigration Problem, pages 231-237; Annals, vol. xciii, pages 7-13; Gulick, American Democracy and Asiatic Citizenship.)
19. Japanese immigration. (Annals, vol. xciii, part i; Jenks and
Lauck, The Immigration Problem, pages 241-252; Steiner, The
Japanese Invasion; Gulick, American Democracy and Asiatic
Citizenship.)
20. Americanization. (Annals, vol. xciii, part in; Woods, Americans in Process; Steiner, From Alien to Citizen; Bogardus, Essentials of Americanization; Roberts, The Problem of Americanization)