Pinus scopulorum |
United States, Arizona |
1929-07-22 |
Pinus scopulorum |
United States, Arizona |
1929-07-22 |
Pinus, spruce, aspen, meadow |
United States, Arizona, San Francisco Peak |
1929-08-10 |
Plowing under Sesbania |
United States, Arizona, Mesa Farm |
1929-07-28 |
Plowing under Sesbania |
United States, Arizona, Mesa Farm |
1929-07-28 |
Poa arizonica, Aspen, Engelmann spruce |
United States, Arizona, Hannigans Meadow:White Mountains |
1929-10-18 |
Quercus emoryi |
United States, Arizona |
1929-07-22 |
Quercus turbinella, Pinus |
United States, Arizona |
1929-07-19 |
Quercus turbinella, Pinus, Rhus, etc. |
United States, Arizona |
1929-07-22 |
Shantz, Musgrave |
United States, Arizona, Musgrave Ranch |
1929-10-21 |
Short grass, oak |
United States, Arizona |
1929-07-22 |
Short grass, oak |
United States, Arizona |
1929-07-22 |
Short grass, Quercus, etc. |
United States, Arizona |
1929-07-22 |
Simmondsia, Opuntia, Carnegiea |
United States, Arizona, Boyce Thompson Arboretum |
1929-07-30 |
Soil bank, rock, chaparral type |
United States, California |
1929-01-01 |
Soil bank, rock, chapparal type |
United States, California |
1929-01-01 |
Sporobolus, Fragaria, gophers |
United States, Arizona, Hannigans Meadow:White Mountains |
1929-10-18 |
The valley |
United States, Arizona, Ford Valley |
1929-08-08 |
Toad |
United States, Arizona |
1929-07-28 |
Toad |
United States, Arizona |
1929-07-28 |
Toad |
United States, Arizona |
1929-07-28 |
Toad |
United States, Arizona |
1929-07-28 |
Toad |
United States, Arizona |
1929-07-28 |
Toad |
United States, Arizona |
1929-07-28 |
Toad |
United States, Arizona |
1929-07-28 |
Toad |
United States, Arizona |
1929-07-28 |
Toad |
United States, Arizona |
1929-07-28 |
Toad |
United States, Arizona |
1929-07-28 |
Toad |
United States, Arizona |
1929-07-28 |
Toads |
United States, Arizona |
1929-07-28 |
Toads |
United States, Arizona |
1929-07-28 |
Toads |
United States, Arizona |
1929-07-28 |
Toads |
United States, Arizona |
1929-07-28 |
Toads |
United States, Arizona |
1929-07-28 |
Toads |
United States, Arizona |
1929-07-28 |
Toads |
United States, Arizona |
1929-07-28 |
Toads |
United States, Arizona |
1929-07-28 |
Toads |
United States, Arizona |
1929-07-28 |
Toads |
United States, Arizona |
1929-07-28 |
Toads |
United States, Arizona |
1929-07-28 |
Toads |
United States, Arizona |
1929-07-28 |
Toads |
United States, Arizona |
1929-07-28 |
Vegetation of valley |
United States, Arizona, Ford Valley |
1929-08-08 |
Vegetation on mt. |
United States, Arizona, San Francisco Peak |
1929-08-10 |
View of arboretum |
United States, Arizona, Boyce Thompson Arboretum |
1929-07-30 |
View of meadow, spruce, grass |
United States, Arizona, Kaibab, V.T. Ranch |
1929-06-26 |
W Lark sparrow nest in Atriplex tridentata |
United States, Utah, Kanab Creek |
1929-06-25 |
Winn, Musgrave, Reddington |
United States, Arizona, Musgrave Ranch |
1929-10-21 |
Winn, Musgrave, Reddington |
United States, Arizona, Musgrave Ranch |
1929-10-21 |
Yellow pine |
United States, Arizona, Grand Canyon |
1929-11-05 |