Title: Progressive politics and conservation
Subjects: United States, United States. Dept. of the Interior, United States. Forest Service, United States. Department of the Interior, Politics and government, Conservation des ressources naturelles, Foreign relations, Right and left (Political science)
People: Gifford Pinchot, Gifford Pinchot (1865-1946), Richard Achilles Ballinger, Richard Achilles Ballinger (1858-1922)