31
The Tide of Immigration. By Frank Julian Warne, special expert on foreign-born population, 13th U. S. Census, New York, 1916.
32
Essays in Social Justice. By Thomas Nixon Carver, professor of Political Economy in Harvard University, Cambridge, 1915.
33
Fairchild's and Jenks' opinions are quoted from Warne, Chapter XVI.
34
America and the Orient: A Constructive Policy, by Rev. Sidney L. Gulick, Methodist Book Concern. The American Japanese Problem: a Study of the Racial Relations of the East and West, New York, Scribner's.