A few Joshua Trees (Yucca Mohaviensis) in the Mojave Desert, ca.1903 

Mesquite covered with mistletoe growing in the Colorado Desert, ca.1915 

Desert scene in Riverside County, showing a smoke tree and mountains, ca.1903 

Mesquite trees in the desert, ca.1925 

Mesquite tree in Imperial Valley after irrigation, ca.1910-1920 

Smoke tree in desert terrain in Riverside County, ca.1903 

Desert growth in unidentified foothills, ca.1900-1940 

Screw poll mesquite growing in Colorado Desert, ca.1910 

Man with leggings standing near a Joshua Tree (Yucca Mohaviensis) in the Mojave Desert, ca.1904 

Two men stand at the foot of a Big Tree in Mariposa Grove in Yosemite National Park, California, ca.1900 

Horse-drawn buggy on the sand dunes of the Colorado Desert, ca.1900 

Group of people on and around a fallen Big Tree in Mariposa Grove in Yosemite National Park, California, ca.1900 

A log cabin dwarfed by a Big Tree in Mariposa Grove in Yosemite National Park, ca.1920 

Thousand Palms Canyon in the Colorado Desert, ca.1903-1904 

Horse-drawn wagon driving through a hole cut in a Big Tree in Mariposa Grove in Yosemite National Park, California, ca.1900 

A Joshua tree (Yucca Mohaviensis) in the Mojave Desert near Lancaster, 1904 

Lone man in a hat walking in the Colorado Desert near Palm Springs, 1903-1904 

Mesquite bean plant specimen, ca.1900-1910 

Mesquite forest near the Colorado River, California, ca.1910-1920 

Palms in Chuckwalla (or Chuckawalla) Canyon in the Colorado Desert, ca.1903-1904