Youth and education; scientific career, UC Berkeley Donner Laboratory; comments on Sierra Club conservation campaigns of 1960s, including population, pesticides, Redwood National Park, Grand Canyon, Wilderness Act of 1964, Mineral King; Nipomo Dunes-Diablo Canyon controversy, 1965-69; club internal organization, with comments on leaders, decision making processes, and resignation of executive director David Brower, 1969; formulation of club energy policy and growth of opposition to nuclear power; the environment and social policy; campaign for California Coastal Protection, 1972; opposition to California Water Plan and Peripheral Canal; efforts of Save San Francisco Bay Association, 1967-77; scientific and mountaineering expeditions: Sierra Nevada, Cordillera Blanca, 1954 California Himalayan Expedition, Antarctica, 1963 First American Expedition to Mount Everest.