Across
- 6. developed the telegraph using electromagnetism
- 10. a record player
- 12. built hotels and railroads which eventually extended to Miami
- 14. liquid hydrocarbon formed over millions of years from the decayed remains of sea organisms
- 15. a prolonged business downturn with high unemployment
- 16. their stocks to the board of trust who would manage them
Down
- 1. improved the engines of railroads and steamships by developing oil drip cups
- 2. created a breathing apparatus for use by firemen
- 3. this person made the process of steel much more economical
- 4. first African American woman to receive a US patent
- 5. invention made instant communications possible
- 7. complete control over the production
- 8. free enterprise system
- 9. to be responsible
- 11. another petroleum derivative
- 13. economic method that had other companies