Chapter 18 Sections 1, 2, and 3

4. A center offering help to urban poor.
5. The rapid growth of city populations.
6. Unions negotiate with management for workers as a group.
8. A company that controls most or all business in a particular industry.
9. A poor Scottish immigrant who worked his way up in the railroad business.
15. The inventor of the telephone.
17. To get rid of.
21. Buildings divided into many tiny apartments.
23. People who tested a gas-powered airplane at Kitty Hawk, North Carolina.
24. A manufacturing method in which a product is put together as it moves along a belt.

1. To increase in speed.
2. A group of corporations run by a single board of directors.
3. A business owned by many inventors.
7. Someone who sets up a new business to make profit.
10. A place where people receive medical treatment, often for free or for a small fee.
11. A reformer who worked hard for poor city dwellers.
12. A Jewish Immigrant who formed a new union called the American Federation of Labor.
13. To purify; make free from impurities.
14. To change; to make different.
16. An American manufacturer who made the automobile available to millions.
18. The system in which privately owned businesses compete freely.
19. To give a good reason for an action.
20. The son of a peddler in New York who invested in an oil refinery.
21. “invention factory” at Menlo Park NJ light bulb and hundreds more inventions
22. a document giving someone the sole right to make and sell an invention/product