Annotation	Page	Subject	Links
18.1	567	Iron and Steel	Video - Tapping a Furnace, Westinghouse Works (1904)
18.2	570	Impact of Railroads	Audio - Byron Coffin: Casey Jones Audio - Jim Holbert: Casey Jones Image - Beauty Grace Speed Power: Patroness of Travel, the Spirit of Modern Railroading Beckons into the Fairyland of the Rockies (1920s). Image - How Science Aids the Traveler (1920s) Image - Summer Excursion Routes (1882)
18.3	578	Thomas Alva Edison	Text - Thomas Edison: The Phonograph and its Future. (May 1878) Text - Thomas Edison: The Success of the Electric Light. (October 1880)
18.4	585	Distribution of Wealth	Text - Andrew Carnegie: FROM Wealth (June 1889).

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