MATTHEWS, LILLIAN R. Women in Trade Unions in San Francisco. 
University of California, 1913.

MITCHELL, JOHN.  Organized Labor.  Philadelphia, 1903.

NATIONAL ASSOCIATION OF MANUFACTURERS.  Preliminary report on the
Minimum Wage.  New York.

NEARING, SCOTT.  Wages in the United States, 1908 to 1910.  New York, 1911.

OLIVER, THOMAS.  Dangerous Trades.  London, 1902.

PATTEN, SIMON N. The New Basis of Civilization.  New York, 1907.

PEIXOTTO, JESSICA B. Women of California as Trade Unionists. Association of Collegiate Alumnae, Dec., 1908.

PRESCOTT and HALL.  Immigration and Its Effects.  New York, 1900.

PUTNAM, EMILY JAMES.  The Lady.  New York, 1910.

RAUSCHENBUSCH, WALTER.  Christianity and the Social Crisis.  New York, 1907.

——­ Christianizing the Social Order.  New York, 1912.

RHINELANDER, W.S.  Life and Letters of Josephine Shaw Lowell.  New York, 1911.

RICHARDSON, DOROTHY.  The Long Day.  New York, 1905.

ROGERS, J.E.  THOROLD.  Six Centuries of Work and Wages.

ROMAN, F.W.  Industrial and Commercial Schools of the United States and
Germany.  New York, 1915.

ROSS, EDWARD ALSWORTH.  Sin and Society.  Boston, 1907.

RUSSELL, CHARLES EDWARD.  Why I Am a Socialist.  New York, 1910.

RYAN, JOHN A. A Living Wage in Its Ethical and Economic Aspects.  New
York, 1906.

SALMON, LUCY M. Progress in the Household.  Boston, 1906.

SCHREINER, OLIVE.  Woman and Labour.  London and New York, 1911.

SIMONS, A.M.  Social Forces in American History.

SNEDDEN, DAVID M. Problems of Educational Readjustment.  New York, 1913.

——­ The Problem of Vocational Education.  Boston, 1910.

SNOWDEN, PHILIP.  The Living Wage.  London and New York, 1912.

SOMBART, WERNER.  Socialism and the Social Movement (Trans.).  New York, 1909.

SPARGO, JOHN.  Socialism.  New York, 1909.  Syndicalism, Industrial
Unionism and Socialism.  New York, 1913.

——­ and ARNER, G.B.L.  Elements of Socialism.  New York, 1912.

SPENCER, ANNA GARLIN.  Woman and Social Culture.  New York, 1913.

SUMNER, HELEN L. History of Women in Industry in the United States. 
Vol.  IX of the United States Report on the Condition of Women and
Child Wage Earners. 1910.

THOMAS, W.I.  Sex and Society.  University of Chicago Press, 1907.

VAN KLEECK, MARY.  Artificial Flower Making.  Women in the Bookbinding
Trade.  Russell Sage Foundation publications, 1912.

VAN VORST, BESSIE and MARIE.  The Woman Who Toils.  New York, 1903.

WARD, LESTER F. Pure Sociology (especially Chapter XIV).  New York.

WEBB, SIDNEY.  Economic Theory of a Legal Minimum Wage. Journal of
Political Economy, Vol. 20, No. 12., Dec., 1912.