Water Stains and Red Flower, Hidden Passage, Glen Canyon, Utah, September 22, 1961

Sandstone Pattern, Moab, Utah, August 27, 1958

Fog in Valley, Chisos Mountains, Big Bend National Park, Texas, November 4, 1978

Corinthian Capitals, Temple of Trajan, Pergamon, Turkey, April 2, 1971

Corinthian Capitals, Temple of Trajan, Pergamon, Turkey, April 2, 1971

Orange Lichen on Rock, Barred Islands, Maine, July 22, 1973

Lichen on Blue Stones, Little Spruce Head Island, Maine, August 24, 1973

White Deposit on Cliff, Bradbury Island, Maine, August 25, 1973

Yellow Fungi on Tree Trunk, Great Spruce Head Island, Maine, August 28, 1973

Spruce Trees and Rocks, Great Spruce Head Island, Maine, July 28, 1974

Lichen on Schist, Seal Island, Maine, August 22, 1972

Lichen on Glaciated Basalt, Sugarloaf Island, Barred Islands, Maine, August 31, 1972

Leathery Lichen, Rock Tripe, Great Spruce Head Island, Maine, August 28, 1972

Orange Lichen and Seaweed, Barred Islands, Maine, July 22, 1973

Orange Lichen and Seaweed, Barred Islands, Maine, July 22, 1973

Yellow Lichen on Shore, Sloop Island, Maine, July 30, 1973

Long-Stemmed Grasses, Great Spruce Head Island, Maine, August 1, 1973

Lichen and Quartz Vein, Great Spruce Head Island, Maine, August 14, 1973

Lichen on Driftwood, Sloop Island, Maine, August 18, 1973

Wharf House Window, Stonington, Maine, August 17, 1973