Close-up of an Arizona gila monster, ca.1920 

Close-up of a chacguala lizard, ca.1920 

Close-up of a desert tortoise found 60 miles from water, ca.1920 

Close-up of a diamond back rattle snake, ca.1900-1920 

Close-up of coiled diamond back rattlesnack, ca.1920 

Pima Indian man, John Thomas, Chief at Gila Crossing, Pima, Arizona, ca.1900 

Close-up of a specimen of a Hydrangea in bloom, ca.1920 

"Arizona Mary" leading a sixteen-yoke ox team in Arizona, ca.1890 

Group of Pima Indian farmers sitting on shore looking at an irrigation dam on the Gila River, Arizona, ca.1900 

Hopi Indian woman and her daughter in the village of Oraibi, showing a close-up view, ca.1901 

Adobe house belonging to the Pima Indian interpreter, Gila Crossing, ca.1900 

Wagon crossing the Gila River on the Pima Indian Reservation, Pima, Arizona, ca.1905 

Presbyterian Mission church and school for the Pima Indians at Gila Crossing, ca.1900 

Close-up of a specimen of a Chrysanthemum (flower), ca.1920 

Portrait of a young Yaqui Indian woman, Arizona, ca.1910 

Walapai Indian woman, the wife of Chief Shurum, with W.H. James, Hackbury, Arizona, ca.1900 

Specimen of an Amaryllis flower, ca.1920 

Close-up of a specimen of a Lady Washington Geranium (Pelagonium), ca.1920 

General view of the ruin of Mission Tumacacori, near Tucson, Arizona, ca.1908 

An old Walapai Indian couple with Indian interpreter, Kingman, Arizona, 1902