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

White Water Lilies, Saint Marks Refuge, Florida, May 9, 1954

Cypress and Cattails, Tamiami Trail Loop Road, Florida, February 11, 1974

Pond Cypress, Corkscrew Swamp, Florida, March 8, 1974

Cliffs at Buccaneer Cove, Santiago Island, Galápagos Islands, April 12, 1966

Geospiza scandens, Academy Bay, Santa Cruz Island, Galápagos Islands, April 30, 1966

Geospiza scandens, Academy Bay, Santa Cruz Island, Galápagos Islands, April 30, 1966

Yellow-crowned Night Heron, Sombrero Chino, Santiago, Galápagos Islands, May 13, 1966

Yellow-crowned Night Heron, Juvenile, Tower Island, Galápagos Islands, March 22, 1966

Yellow-crowned Night Heron, Adult, Tower Island, Galápagos Islands, March 24, 1966

Marine Iguana Skeleton, Punta Espinosa, Fernandina Island, Galápagos Islands, April 3, 1966

White Booby, Daphne Major, Galápagos Islands, March 8, 1966

Cliff Detail, Bainbridge Island, Galápagos Islands, March 25, 1966

Flightless Cormorants, Punta Espinosa, Fernandina Island, Galápagos Islands, April 8, 1966

Ghost Crab on Beach, San Cristobal Island, Galápagos Islands, May 23, 1966

Swallowtail Gulls, Punta Pitt, San Cristóbal Island, Galápagos Islands, May 24, 1966

Brown and Black Lava and Cinders, Bartholomew Island, Galápagos Islands, May 12, 1966

Saltwort, Red Clay, Black Rocks, San Cristobal Island, Galápagos Islands, May 23, 1966

Crater Lake, San Cristóbal Island, Galápagos Islands, May 25, 1966

Scalesia Tree with Moss, Santa Cruz Island, Galápagos Islands, April 23, 1966