17. In what sense is sympathy the "law of laughter"?
18. What determines the object of laughter?
19. What is the sociological explanation of the rôle of laughter and ridicule in social control?
20. What are the likenesses and differences between intercommunication among animals and language among men?
21. What is the criterion of the difference between man and the animal, according to Max Müller?
22. In your opinion, was the situation in which language arose one of unanimity or diversity of attitude?
23. "Language and ideational processes developed together and are necessary to each other." Explain.
24. What is the relation of the evolution of writing as a form of communication (a) to the development of ideas, and (b) to social life?
25. What difference in function, if any, is there between communication carried on (a) merely through expressive signs, (b) language, (c) writing, (d) printing?
26. How does the evolution of publicity exhibit the extension of communication by human invention?