Gannets, Bonaventure Island, Canada, 1938

Eider Duck Nest, 1937

Fish Hawk, July 9, 1940

Arctic Tern, Matinicus Rock, Maine, August 5, 1949

Red-winged Blackbird, Female, Illinois, June 10,1941

Upland Plover, Lovells, Michigan, June 9, 1946

Fish Hawk, July 18, 1940

Osprey, Great Spruce Head Island, Maine, July 22, 1949

Black-chinned Hummingbird, Female, Arizona, May 11, 1941

Cottonwood Tree, Moki Canyon, Glen Canyon, Utah, April 8, 1963

Weathered Stones, Balanced Rock Canyon, Glen Canyon, Utah, April 12, 1963

Dried Canes, Moki Canyon, Glen Canyon, Utah, April 8, 1963

Dried Canes, Moki Canyon, Glen Canyon, Utah, April 8, 1963

Mud Cracks and Red Sand, Hall's Creek, Utah, August 18, 1963

Pool and Willow, Cottonwood Tanks, Waterpocket Fold, Utah, August 23, 1963

Rock Patterns, Cottonwood Tanks, Waterpocket Fold, Utah, August 23, 1963

Pool with Driftwood, Lost Eden Canyon, Utah, August 22, 1964

Pool with Driftwood, Lost Eden Canyon, Utah, August 22, 1964

Primroses on Sand Dune, near Hidden Passage, Glen Canyon, Utah, April 10, 1963

Pools, Upper Bridge Canyon, Glen Canyon, Utah, April 11, 1963