Lava Crack, Espinosa Point, Fernandina Island, Galápagos Islands, April 7, 1966

Cereus Cactus and Lava Cone, Sombrero Chino at James Island, Galápagos Islands, March 11, 1966

Mangrove on Beach, Las Palmas Bay, Galápagos Islands, March 27, 1966

Lagoon, Jarvis Island, Galápagos Islands, March 31, 1966

Squirt-up Lava, Sullivan Bay, James Island, Galápagos Islands, March 10, 1966

Saltwort on Lava, Las Palmas Bay, Galápagos Islands, March 27, 1966

Lava Rocks and Sand, James Bay, James Island, Galápagos Islands, April 1, 1966

Lichen on Ash Cone, Sullivan Bay, James Island, Galápagos Islands, March 10, 1966

Lava Rocks in Bay (Fog), Espinosa Point, Fernandina Island, Galápagos Islands, April 3, 1966

View North from Top, Santa Cruz Island, Galápagos Islands, April 22, 1966

Pool in Lava, Cartago Bay, Isabela Island, Galápagos Islands, May 7, 1966

Grey Vegetation on Cinder Slope, Bartolomé Island, Galápagos Islands, May 12, 1966

Facade, Temple of Nefertari, Abu Simbel, Egypt, February 1, 1973

Dead Booby with Lava Lizards, Daphne Major, Galápagos Islands, March 8, 1966

Tillandsia fasciculata, Bear Lake, Everglades Natiodnal Park, Florida, March 21, 1954

Cypress Slough, Cypress Lodge, Punta Gorda, Florida, January 31, 1974

Longleaf Pine, Detail, Cypress Lodge, Punta Gorda, Florida, February 1, 1974

Paurotis Palm, Everglades National Park, Florida, February 19, 1974

Moss on Cypress Log, Tamiami Trail, Florida, February 12, 1974

Workman's Village, Deir el-Medina, West Bank Opposite Luxor, Eqypt, January 21, 1973