ROOSEVELT, THEODORE, _The Winning of the West_, 4 vols. New York, 1889-1894.
ROSENBERG, EDWARD, "Chinese Workers in China," "Filipinos as Workmen," "Labor Conditions in Hawaii," _American Federationist_, August, October, December, 1905.
ROSS, EDWARD A., "The Causes of Race Superiority," _Annals of the American Academy of Political and Social Science_, July, 1901, pp. 67-89. The notable address in which the term "race suicide" was coined.
ROWE, LEO S., _The United States and Porto Rico_. New York, 1904.
SEMPLE, ELLEN CHURCHILL, _American History and its Geographic Conditions_. New York, 1903. "The Anglo-Saxons of the Kentucky Mountains: A Study in Anthropogeography," _Geographical Journal_, 17:588 (1901).
SLAV IN AMERICA, THE, _Charities_, December, 1904. Descriptive articles by representatives of the several Slav nationalities.
SMITH, R. M., _Emigration and Immigration_. New York, 1890. "Assimilation of Nationalities in the United States," _Political Science Quarterly_, Vol. IX, pp. 426-444, 650-670 (1894).
STEWART, ETHELBERT, "Influence of Trade Unions on Immigrants," Bureau of Labor, _Bulletin_ No. 56.
STONE, A. H., "The Negro in the Yazoo-Mississippi Delta," _American Economic Association_, 3d Series, Vol. III, pp. 235-278 (1901). "The Mulatto Factor in the Race Problem," _Atlantic Monthly_, May, 1903. "A Plantation Experiment," _Quarterly Journal Economics_, 19:270 (1905). "The Italian Cotton Grower: The Negro's Problem," _South Atlantic Quarterly_, 4:45 (1905).
SUFFRAGE, SUPPRESSION OF THE. Report of the Committee on Political Reform of the Union League Club. New York, 1903.
THOMAS, W. H., _The American Negro_, 1901.
TILLINGHAST, JOSEPH A., "The Negro in Africa and America," _American Economic Association_, 3d Series, Vol. III, No. 2 (1902).
VAN VORST, MRS. JOHN AND MARIE, _The Woman who Toils_. New York, 1903. Contains introduction by President Roosevelt.
WALKER, FRANCIS A., _Discussions in Economics and Statistics_, 2 vols., 1897.
WARD, ROBERT DE C., "Sane Methods of Regulating Immigration," _Review of Reviews_, March, 1906.
WARNE, FRANK JULIAN, _The Slav Invasion and the Mine Workers_, 1904.
WASHINGTON, BOOKER T., _The Future of the American Negro_, 1900. _Up from Slavery_, 1901.