B. The Crowd 1. The "Animal" Crowd 881 a) The Flock. _Mary Austin_ 881 b) The Herd. _W. H. Hudson_ 883 c) The Pack. _Ernest Thompson Seton_ 886 2. The Psychological Crowd. _Gustave Le Bon_ 887 3. The Crowd Defined. _Robert E. Park_ 893 C. Types of Mass Movements 1. Crowd Excitements and Mass Movements: The Klondike Rush. _T. C. Down_ 895 2. Mass Movements and the Mores: The Woman's Crusade. _Annie Wittenmyer_ 898 3. Mass Movements and Revolution a) The French Revolution. _Gustave Le Bon_ 905 b) Bolshevism. _John Spargo_ 909 4. Mass Movements and Institutions: Methodism. _William E. H. Lecky_ 915 III. Investigations and Problems 1. Social Unrest 924 2. Psychic Epidemics 926 3. Mass Movements 927 4. Revivals, Religious and Linguistic 929 5. Fashion, Reform, and Revolution 933 _Selected Bibliography_ 934 _Topics for Written Themes_ 951 _Questions for Discussion_ 951 CHAPTER XIV. PROGRESS I. Introduction 1. Popular Conceptions of Progress 953 2. The Problem of Progress 956 3. History of the Concept of Progress 958 4. Classification of the Materials 962 II. Materials A. The Concept of Progress 1. The Earliest Conception of Progress. _F. S. Marvin_ 965 2. Progress and Organization. _Herbert Spencer_ 966 3. The Stages of Progress. _Auguste Comte_ 968 4. Progress and the Historical Process. _Leonard T. Hobhouse_ 969 B. Progress and Science 1. Progress and Happiness. _Lester F. Ward_ 973 2. Progress and Prevision. _John Dewey_ 975 3. Progress and the Limits of Scientific Prevision. _Arthur J. Balfour_ 977 4. Eugenics as a Science of Progress. _Francis Galton_ 979