14. Study the influence of the Macedonian conquests on civilization and commerce. [Myers, chaps. 25, 26, 27; Holm, vol. 3, esp. chap. 27.]
15. Write a report on the economic decline of Greece after the Macedonian conquest. [Holm, vol. 4.]
16. Is England exposed to such a change in the currents of trade as furthered the decline of Greece?
17. Why do great cities rarely grow up without the aid of commerce? [The answer to this question is suggested in a later chapter, but the student should be able to work it out himself.]
18. Are there any exceptions? What is the commerce of Washington, D. C.? Is there any one of the cities named in this section which may have owed its size to something beside commerce?
19. Has there been any later period in which great cities have risen suddenly, as in this period after Alexander?
20. Write a commercial history of Carthage from the information to be got in a Roman history, or in the Encyclopædia Britannica. Write a commercial history of Syracuse in the Roman period, from the same sources.
21. Write a report on the commerce and civilization of one of the cities, using Holm, vol. 4, and the encyclopedia.
22. Endeavor to trace the later history of one of these cities, and to discover its population now, using the encyclopedia and a geographical gazetteer.
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