The experiences of a Berlin musician in his occupational life. Showing the evolution of an occupational type, with many highly specialized subtypes. (IX; X, 2.) Roe, Clifford. _Panders and Their White Slaves_ (New York and Chicago, 1910). (V, 1; VII, 5.) Rowntree, B. Seebohm, and Lasker, Bruno. _Unemployment: A Social Study_ (London, 1911). Simkhovitch, Mary K. _The City Worker’s World in America_ (New York, 1917). (V, 1, 2, 3; VI, 10; VII, 2, 5.) Solenberger, Alice W. _One Thousand Homeless Men: A Study of Original Records_ (New York, 1914). What a social agency’s records reveal about occupational careers in the city. (VI, 4; VII, 4, 5; VIII, 1.) Veblen, Thorstein. _The Instinct of Workmanship, and the State of the Industrial Arts_ (New York, 1914). Showing the development of the specialization of labor and its effect on human behavior. (IX, 2.) Werthauer, Johannes. _Berliner Schwindel_, Vol. XXI in “Grossstadt Dokumente” (Berlin, 1905). Showing the extent to which fraud has become a technical profession. (VII, 5; IX, 2, 4.) Weidner, Albert. _Aus den Tiefen der Berliner Arbeiterbewegung_, Vol. IX, in “Grossstadt Dokumente” (Berlin, 1905). The significance of the labor movement in the large city. (V, 1, 4; VII, 5; IX, 2, 3, 4.) 2. There is a city mentality which is clearly differentiated from the rural mind. The city man thinks in mechanistic terms, in rational terms, while the rustic thinks in naturalistic, magical terms. Not only does this difference exist between city and country, it exists also between city and city, and between one area of the city and another. Each city and each part of the city furnishes a distinct social world to its inhabitants, which they incorporate in their personality whether they will or no. Carleton, Will. _City Ballads, City Festivals, and City Legends_ (London, 1907). (X, 2.) Grant, James. _Lights and Shadows of London Life_ (London, 1842). Giving a view of the picturesque aspects of the modern city. ——. _The Great Metropolis_ (London, 1836). (III, 5; IV, 6; V, 3; IX.) Marpillero, G. “Saggio di psicologia dell’urbanismo,” _Revista Italiana di Sociologia_, XII (1908), 599–626. Morgan, Anna. _My Chicago_ (Chicago, 1918). A city from the standpoint of the social aristocracy. (V, 3.) Seiler, C. Linn. City Values. “An Analysis of the Social Status and Possibilities of American City Life” (University of Pennsylvania, Ph.D. Thesis, 1912). Simmel, G. _Die Grossstädte und das Geistesleben_, in “Die Grossstadt” (Dresden, 1903). The most important single article on the city from the sociological standpoint. Sombart, Werner. _The Jews and Modern Capitalism_, translated from the German by M. Epstein (London and New York, 1913).