Sears, C. H. “The Clash of Contending Forces in Great Cities,” Biblical World, XLVIII (October, 1916), 224–31. (VII, 5; IX, 1, 3.)
Symposium, “The Greatest Negro Community in the World,” Survey Graphic, LIII (March 1, 1925), No. 11.
A collection of articles on the Negro community in Harlem, New York. (VII, 2, 3; IX, 1, 3, 4; X, 1.)
Williams, Fred V. The Hop-Heads: Personal Experiences among the Users of “Dope” in the San Francisco Underworld (San Francisco, 1920). (VII, 2; IX, 3, 4.)
4. The city may be graphically depicted in terms of a series of concentric circles, representing the different zones or typical areas of settlement. At the center we find the business district, where land values are high. Surrounding this there is an area of deterioration, where the slums tend to locate themselves. Then follows an area of workmen’s homes, followed in turn by the middle-class apartment section, and finally by the upper-class residential area. Land values, general appearance, and function divide these areas off from each other. These differences in structure and use get themselves incorporated in law in the form of zoning ordinances. This is an attempt, in the face of the growth of the city, to control the ecological forces that are at work.
Cheney, C. H. “Removing Social Barriers by Zoning,” Survey, XLIV (May, 1922), 275–78. (V, 1, 5; VII, 2.)
Eberstadt, Rudolph. Handbuch des Wohnungswesens und der Wohnungsfrage (4th ed.; Jena, 1910).
An encyclopedic work on housing, city-zoning, and planning. (VI, 1, 2, 3, 6, 7, 8, 9, 10; VII.)
Kern, Robert R. The Supercity: A Planned Physical Equipment for City Life (Washington, D.C., 1924).
A planned model city with co-operative services of many sorts, with zoning as an important feature. (V, 5; VI.)