AUTHORITIES CONSULTED IN PREPARING THIS BOOK.
United States Census, from 1790 to 1880 inclusive.
Reports of the State Bureaus of Labor Statistics as follows:—
Maine, 1889.
Massachusetts, 1870 to 1889 inclusive.
Connecticut, 1881.
Rhode Island, 1889.
New York, 1885.
New Jersey, 1885, 1886, and 1889.
Iowa, 1887 and 1889.
Kansas, 1889.
Wisconsin, 1883-84 and 1887.
Colorado, 1889.
Minnesota, 1889.
California, 1888.
Nebraska, 1887-90.
Michigan, 1892.
Reports of the Factory Inspectors for various States.
Working Women in Large Cities: Report of the United States Department of Labor, Washington, D.C., 1889.
The Labor Movement in America. By Richard T. Ely. Thomas Y. Crowell & Co., New York.
The Wages Question: A Treatise on Wages and the Wages Class. By Francis A. Walker. Henry Holt & Co., New York.
The Labor Problem. Edited by W.E. Barnes. Harper & Brothers, New York.