View from Top (South), Bartholomew Island, Galápagos Islands, May 12, 1966

Crater with Clouds Drifting over Alcedo Volcano, Isabela Island, Galápagos Islands, May 4, 1966

Palo Santo on Edge of Headland, Buccaneer Cove, Santiago Island, Galápagos Islands, May 10, 1966

Palo Santo on Edge of Headland, Buccaneer Cove, Santiago Island, Galápagos Islands, May 10, 1966

Palo Santo and Cactus, Cartago Bay, Isabela Island, Galápagos Islands, May 8, 1966

Cactus and Seal-polished Rocks, Barrington Island, Galápagos Islands, May 20, 1966

Giant Cactus Grove, Barrington Island, Galápagos Islands, May 21, 1966

Seals on Beach, Hood Island, Galápagos Islands, May 25, 1966

Miconia Trucks and Ferns, Santa Cruz Island, Galápagos Islands, April 22, 1966

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

Ocatia and Palo Santo, Eden Island, Galápagos Islands, March 14, 1966

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

Pahoehoe Lava and Green Vegetation, Tower Island, Galápagos Islands, March 23, 1966

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

Poppies on Roman Wall, Corinth, Greece, April 10, 1967

Short-eared Owl, Station Caseta, Santa Cruz Island, Galápagos Islands, April 19, 1966

Red-pigmented Marine Iguana, Punta Suarez, Hood Island, Galapagos Islands, May 28, 1966

Pines on Old Foundations of Hotel, Epidaurus, Greece, April 7, 1967

Olive Trees and Wildflowers, Road from Pylos, Greece, April 13, 1967

Peach Tree in Wheat Field, West from Bassae, Greece, April 11, 1967