Federal Safeguards of Child Welfare : Child Welfare Has Become a World Concern—What is the Share of the United States ?

Roscoe Pound : The Spirit of the Common Law , especially pp. 185-189.

Charles A. Beard : American Government and Politics, p. 7.

Herbert Hoover : Waste in Government, Address before National Chamber of Commerce, May 21, 1925.

McBain & Rogers : The New Constitutions of Europe (Text Lithuania New York Times. Current History Magazine

Edward B. Rosa : The Economic Importance of the Scientific Work of the Government, Reprint from Journal, Washington Academy of Sciences, Vol. 10, 12012, p. 353.

Bulletin of the National Research Council, Cooperation with the Federal Government in Scientific Work, published 1922, pp. 17-27.

U. S. Children's Bureau Publications on Infant and Maternal Mortality and Child Labor.

The U. S. Census 1920 and Census Summary of Provisional Birth & Mortality figures 1923.