SOURCE: A review of Probleme der Sozialphosophie, by Robert Michels, in The American Journal of Sociology, Vol. XX, No. 4, January, 1915, pp. 548-49.

In the following review of Michels's Probleme der Sozialphosophie, Loos praises the unadorned style of Michels 's writing in German, and agrees with his theories on castes in industrial societies.

[Probleme der Sozialphilosophie] is the eighteenth number of a series begun in 1906 by the issue of a small volume entitled Science and Hypothesis by Henri Poinacré (Paris), translated from the French into German by F. and L. Lindermann (Munich). Intervening numbers have been issued at somewhat irregular intervals; every year since 1906, except 1909, is represented by one or more numbers. In 1913 five new numbers appeared. Many others are in preparation. A list of preceding numbers, each briefly described, enables the student to select the special study in which his interest lies.

The number under review is given...