Chapter 1: A Prophet without Honor, 1817–1862
Chapter 2: Thoreau in the Age of Industry, 1862–1890
Chapter 3: The Cult of Nature and the Age of Progress, 1890–1917
Chapter 4: Thoreau for the Ages, Thoreau for the Times, 1920–1960
Chapter 5: Thoreau in a Changing Political World, 1960–1970
Chapter 6: An Environmental Icon