849
3. Public Opinion and Social Control 850
4. Legal Institutions and Law 851

_Selected Bibliography_ 854
_Topics for Written Themes_ 862
_Questions for Discussion_ 862

CHAPTER XIII. COLLECTIVE BEHAVIOR

I. Introduction
1. Collective Behavior Defined 865
2. Social Unrest and Collective Behavior 866
3. The Crowd and the Public 867
4. Crowds and Sects 870
5. Sects and Institutions 872
6. Classification of the Materials 874

II. Materials
A. Social Contagion
1. An Incident in a Lancashire Cotton Mill 878
2. The Dancing Mania of the Middle Ages. _J. F. C. Hecker_ 879

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