Guardians of tomorrow

By S. Carl Hirsch

Subjects: Juvenile literature, Naturalists, Ecology, Conservation of natural resources, Children's fiction, History

Description: Brief biographies of eight American pioneers in conservation and ecology: Henry David Thoreau, George Perkins Marsh, Frederick Law Olmsted, John Muir, Gifford Pinchot, George Norris, Aldo Leopold, and Rachel Carson.