Preserving nature in the national parks: a history

ch. 1. Creating tradition: the roots of national park management

ch. 2. Codifying tradition: the national park service act of 1916

ch. 3. Perpetuating tradition: the national parks under Stephen T. Mather, 1916-1929

ch. 4. The rise and decline of ecological attitudes, 1929-1940

ch. 5. The war and postwar years, 1940-1963

ch. 6. Science and the struggle for bureaucratic power: the Leopold era 1963-1981

ch. 7. A house divided: the national park service and environmental leadership.