Mixed Vegetation, Mount Kenya, September 8, 1970

Maple Trees by Swift River, Passaconaway, New Hampshire, October 4, 1956

Reflections in Brook, Lichfield Park, Adirondack Mountains, New York, September 28, 1963

Temple of Athena, Priene, Turkey, April 6, 1970

Grass and Leaves, Colorado, October 1958

Trees Over Sabbaday Brook, Passaconaway, New Hampshire, October 2, 1956

Reflections in Pool, Seven Mile Canyon, Glen Canyon, Utah, September 2, 1962

Rock Fracture Patterns, Lake Powell, Utah, August 1964

Streambed, Mara National Reserve, Kenya, July 24, 1970

Weathered Stump, Cape Meares, Oregon, July 16, 1975

Baobab Tree, Tsavo West, Kenya, October 12, 1970

Torn Acacia Bark, Amboseli, Kenya, September 16, 1970

Detail, Scarred Bark of Fever Tree, Amboseli, Kenya, September 16, 1970

Columns and Poplars, Agora, Aphrodisias, Turkey, April 7, 1970

Church, Izamal, Yucatan, Mexico, February 1, 1956

Church, Izamal, Yucatan, Mexico, February 1, 1956

Churchyard of Cemetery, San Francisco Church, Oaxaca, February 24, 1956

Barn Swallow, Great Spruce Head Island, Maine, July 9, 1974

Barn Swallow, Great Spruce Head Island, Maine, July 7, 1971

Osprey, Penobscot Bay, Maine, July 1974