Across
- 2. inventions
- 6. airplane
- 10. child labor
- 14. oil
- 15. a system that moves parts
Down
- 1. caption of the shipping and railroads
- 3. telephonesevice
- 4. industrial development in cities created increased labor needs
- 5. light bulb
- 7. caption of the automobiles industry
- 8. caption of the oil industry
- 9. capital of steel-manufacturing
- 11. capital of meatpacking
- 12. capital of auto-manufacturing
- 13. caption of steel industry