Waterfall and Blue Wall, Cathedral in the Desert, Escalante Canyon, Lake Powell, Utah, May 10, 1965

Spring, Amboseli, Kenya, August 21, 1970

Fracture Weathering, Glen Canyon, Utah, September 1961

Mexico, 1955-1956

Christ on the Cross, Draped with White Cloth for the Deposition from the Cross, During Lent, Teotitlan del Valle, Oaxaca

Altar in Santa Domingo, Chapa de Corzo, Chiapas, Mexico, February 16, 1956

Mexico, 1955-1956

Mexico, 1955-1956

Cloud Formations near McGuire Pass, Colorado, August 1958

Pandora with Rider (.042 Second), One Stride in 12 Phases (Right Lead)

Chaco Canyon. Pueblo Bonito. Five-storied Wall and Cliff from the South

A Correct Likeness of Mr. H. Rockwell's Horse Alexander. Bowery Amphitheatre, New York. March 17th 1840.

Capra americana, Blainville. Rocky Mountain Goat. Male & Female

Purple Finch. Fringilla purpurea. Plant Pinus pendula, Vulgo Black Larch.

Untitled

Prothonotary Warbler. Dacnis protonarius. Plant Vulgo cane vine.

Arctomys pruinosus, Pennant, Hoary Marmot -- The Whistler.

Vulpes lagopus, Linn. Arctic Fox, Winter & Summer Pelage.

Bassaris astuta, Licht. Ring-Tailed Bassaris. Natural Size. Male.

Dasypus peba, Desm. Nine-Banded Armadillo. Male.