421
3. Imitation 423
4. Suggestion 424

_Selected Bibliography_ 425
_Topics for Written Themes_ 431
_Questions for Discussion_ 431

CHAPTER VII. SOCIAL FORCES

I. Introduction
1. Sources of the Notion of Social Forces 435
2. History of the Concept of Social Forces 436
3. Classification of the Materials 437

II. Materials

A. Trends, Tendencies, and Public Opinion
1. Social Forces in American History. _A. M. Simons_ 443
2. Social Tendencies as Social Forces. _Richard T. Ely_ 444
3. Public Opinion and Legislation in England. _A. V. Dicey_ 445

B. Interests, Sentiments, and Attitudes
1. Social Forces and Interaction. _Albion W. Small_ 451
2. Interests. _Albion W. Small_ 454
3. Social Pressures. _Arthur F. Bentley_ 458
4. Idea-Forces. _Alfred Fouillee_ 461
5. Sentiments. _William McDougall_ 464
6. Social Attitudes. _Robert E. Park_ 467

C. The Four Wishes: A Classification of Social Forces
1. The Wish, the Social Atom. _Edwin B. Holt_ 478
2. The Freudian Wish. _John B. Watson_ 482
3. The Person and His Wishes. _W. I. Thomas_ 488

III. Investigations and Problems
1. Popular Notions of Social Forces 491
2. Social Forces and History 493
3. Interests, Sentiments, and Attitudes as Social Forces 494
4. Wishes and Social Forces 497

_Selected Bibliography_ 498
_Topics for Written Themes_ 501
_Questions for Discussion_ 502

CHAPTER VIII. COMPETITION

I. Introduction
1. Popular Conceptions of Competition 505
2. Competitio