Across
- 2. Invention by Alexander Graham Bell
- 5. Process that allowed steel to be made cheaper and more efficiently
- 6. Invention by Christopher Sholes
- 8. State where the railroad companies finished the transcontinental railroad
- 9. Man who had a factory for manufacturing sleepers
- 10. Invention that allowed more railroad tracks and skyscrapers
Down
- 1. He invented the light bulb
- 3. What percent of oil production did Rockefeller control?
- 4. One of the Big 4 who donated libraries
- 7. What type of Integration did Carnegie have?