A presentation of nationalities and wages in a congested district of Chicago together with comments and essays on problems growing out of the social conditions. (VII, 2, 3, 4, 5; IX, 3.) Hunter, Robert. _Tenement Conditions in Chicago: Report by the Investigating Committee of the City Homes Association_ (Chicago, 1901). (VII, 5.) Hurd, Richard M. _Principles of City Land Values_ (New York, 1924). Land valuation on the basis of city growth. Shows that the coming of the automobile, making available large tracts for residential purposes, the radio, and other devices for intercommunication have not materially changed the general principles of city growth. Contains maps and photographs showing foot-front values for various cities and land utilization. (VII, 1, 4; VI, 2.) Morehouse, E. W., and Ely, R. T. _Elements of Land Economics_ (New York, 1924). An introduction to land valuation. Chapter vi, on urban land utilization. (VII, 1, 2; X, 2.) McMichael, Stanley L., and Bingham, Robert F. _City Growth and Values_ (Cleveland, 1923). An authoritative statement. (VII, 1.) Olcott, George C. _Olcott’s Land Value Maps_ (annually, Chicago, 1909–25). Valuations of Chicago real estate. Pratt, Edward Ewing. _Industrial Causes of Congestion of Population in New York City_ (New York, 1911). Contains an excellent bibliography. (III, 4; V, 1, 2, 4, 5; VI, 2, 3; VII, 1, 2, 3, 4, 5.) Reeve, Sidney A. “Congestion in Cities,” _Geog. Rev._, III (1917), 278–93. Regards congestion as a growing menace to public health and social stability, and analyzes the causes and suggests remedies. (V, 4, 5; VI; VII, 1, 2, 5; VIII 1.) Riis, Jacob A. _How the Other Half Lives: Studies among the Tenements of New York_ (New York, 1890 and 1914). This together with his other book, _The Battle with the Slum_ (New York, 1892), has done much to call public attention to the tenement problem of the large American city and to invite remedial legislation. (V, 1, 2, 4, 5; VII, 1, 2, 5.) Schumacher, F. “Probleme der Grossstadt,” _Deutsche Rundschau für Geog._, CXXC (July 5, 1919), 66–81, 262–85, 416–29. (V; VI; VII; VIII.) Smythe, William Ellsworth. _City Homes on Country Lanes: Philosophy and Practice of the Home-in-a-Garden_ (New York, 1921). (V, 5.) Stella, A. “_The Effects of Urban Congestion on Italian Women and Children_,” _Medical Record_, LXXIII (New York, 1908), 722–32. (V, 1, 3; VIII, 1.) Südekum, Albert. _Grossstädtisches Wohnungselend_, Vol. XLV in “Grossstadt Dokumente” (Berlin, 1905). A description of a typical tenement area in the European city and its effects on human behavior. (VII, 5; IX, 3.) Veiller, Lawrence. “The Housing Problem in America,” _Ann. Amer. Academy_, XXV (1905), 248–75.