Birds in air |
Mexico, Sonora |
1931-12-09 |
Birds in air |
Mexico, Sonora |
1931-12-09 |
Vegetation, wind effect |
Mexico, Sonora |
1931-12-09 |
Vegetation, wind effect |
Mexico, Sonora |
1931-12-09 |
Seri Indians |
Mexico, Sonora |
1931-12-08 |
Seri Indians |
Mexico, Sonora |
1931-12-08 |
Seri Indians |
Mexico, Sonora |
1931-12-08 |
Seri Indians |
Mexico, Sonora |
1931-12-08 |
Seri Indians |
Mexico, Sonora |
1931-12-08 |
Seri Indians |
Mexico, Sonora |
1931-12-08 |
Seri Indians |
Mexico, Sonora |
1931-12-08 |
Seri Indians |
Mexico, Sonora |
1931-12-08 |
Seri Indians |
Mexico, Sonora |
1931-12-08 |
Seri Indians |
Mexico, Sonora |
1931-12-08 |
Lunch, People |
Mexico, Sonora |
1931-12-07 |
Lophocereus schottii |
Mexico, Sonora |
1931-12-07 |
Lophocereus schottii |
Mexico, Sonora |
1931-12-07 |
Lemairocereus thurberi |
Mexico, Sonora |
1931-12-07 |
Hilaria, Bouteloua, Ironwood, etc. |
Mexico, Sonora |
1931-12-07 |
Pachycereus pringlei |
Mexico, Sonora |
1931-12-07 |
Detail of Pachycereus |
Mexico, Sonora |
1931-12-07 |
Detail of Pachycereus |
Mexico, Sonora |
1931-12-07 |
Open grassland |
Mexico, Sonora |
1931-12-06 |
Open grassland |
Mexico, Sonora |
1931-12-06 |
Prairie vegetation, Mts. in back |
Mexico, Sonora |
1931-12-06 |
Prairie vegetation, Mts. in back |
Mexico, Sonora |
1931-12-06 |
Hilaria, Prosopis, Acacia |
Mexico, Sonora |
1931-12-06 |
Hilaria, Prosopis, Acacia |
Mexico, Sonora |
1931-12-06 |
Celtis, Encelia, Bouteloua, etc. |
Mexico, Sonora |
1931-12-06 |
Celtis, Encelia, Bouteloua, etc. |
Mexico, Sonora |
1931-12-06 |
Copal tree, Ironwood, Encelia |
Mexico, Sonora |
1931-12-06 |
Vegetation named of grasses, Hill |
Mexico, Sonora |
1931-12-06 |
Detail of Hilaria, Acacia, Prosopis |
Mexico, Sonora |
1931-12-06 |
Echinocereus detail |
Mexico, Sonora |
1931-12-06 |
Lemairocereus Thurberi, etc. |
Mexico, Sonora |
1931-12-06 |
Lemairocereus Thurberi, etc. |
Mexico, Sonora |
1931-12-06 |
Lemairocereus thurberi |
Mexico, Sonora |
1931-12-06 |
Bunch grass, vegetation named |
Mexico, Sonora |
1931-12-06 |
Grassland and Quercus Emoryi |
Mexico, Sonora |
1931-12-05 |
Grassland and Quercus Emoryi |
Mexico, Sonora |
1931-12-05 |
Grassland and Quercus Emoryi |
Mexico, Sonora |
1931-12-05 |
Grasses, vegetation |
Mexico, Sonora |
1931-12-05 |
Grasses, vegetation |
Mexico, Sonora |
1931-12-05 |
Cactus garden |
United States, Arizona |
1931-04-01 |
Saguaro, Mr. Bridge, Cats Claw |
United States, Arizona, Saguaro Forest |
1931-02-22 |
Saguaro, Palo Verde, Encelia |
United States, Arizona, Saguaro Forest |
1931-02-22 |
Cereus giganteus, faciated top |
United States, Arizona, Saguaro Forest |
1931-02-22 |
Cereus giganteus, faciated top |
United States, Arizona, Saguaro Forest |
1931-02-22 |
Cats Claw, Encelia, Saguaro, etc. |
United States, Arizona, Saguaro Forest |
1931-02-22 |
Saguaro, Palo Verde, Mr. Bridges |
United States, Arizona, Saguaro Forest |
1931-02-22 |