Grass and Rocks, Maasai Kopjes, Serengeti, Tanzania, September 26, 1970

Desert Roses, Tsavo West, Kenya, October 10, 1970

Stove, Scott's Hut, Ross Island, Antarctica, January 1976

Dungeon Canyon, Glen Canyon, Utah, August 29, 1961

Arizona Jays, Pinery Canyon, Chiricahua Mountains, Arizona, May 15, 1959

Mbololo Pools, Tsavo East, Kenya, October 24, 1970

Desert Roses, Tsavo West, Kenya, October 11, 1970

Erebus Tongue, Ice Cave, Antarctica, 1975-1976

Sand and Rock, Lugard's Falls, Tsavo East, Kenya, October 20, 1970

Sun Reflected from Sea Off Brabant Island from Research Vessel "Hero", Antarctica, February 23, 1976

Elephants, Amboseli, Kenya, August 21, 1970

Sunrise on River, Navajo Creek, Glen Canyon, Utah, August 27, 1961

Oak Tree with Bromeliad, near San Cristobal, Chiapas, February 18, 1956

Concrete Statue of Virgin, Tlaxcala, Mexico, March 20, 1956

Stove, Scott's Hut, Ross Island, Antarctica, January 1976

Eastern Flicker, Flying, Great Spruce Head Island, Maine, July 22, 1968

Black-chinned Hummingbird, Male, Molino Basin, Arizona, April 27, 1955

Moki Creek, Glen Canyon, Utah, September 2, 1962

Tumbleweed and Cliff, near House Rock Rapids, Marble Canyon, Arizona, June 13, 1967

Mount Adams and Beaver Dam, Washington, July 20, 1975