194
Robert Wiebe, The Search for Order, 1877–1920 (New York: Hill and Wang, 1967), 41.
195
Richard Hofstadter, Social Darwinism in American Thought (Philadelphia: University of Pennsylvania Press, 1944), 32.
196
Wiebe, The Search for Order, 1877–1920, 135.
197
White, The Republic for Which It Stands, 363.
198
David Reynolds, America, Empire of Liberty (London: Allen Lane, 2009), 249–250.
199
White, The Republic for Which It Stands, 500.
200
Robert J. Gordon, The Rise and Fall of American Growth: The U. S. Standard of Living Since the Ci vil War (Princeton, NJ: Princeton University Press, 2016), 219.
