|
Alternation, more veg. |
Image |
1915-08-24 |
 |
|
Alternations of Sporobolus, Covillea |
Image |
1916-10-06 |
|
|
Amaranthus |
Image |
1920-03-21 |
|
|
Amaranthus retroflexus |
Image |
1912-09-18 |
|
|
Amaranthus retroflexus |
Image |
1912-09-18 |
|
|
Amaranthus retroflexus |
Image |
1912-09-18 |
|
|
American elm at New Willard [Hotel] |
Image |
1910-10-17 |
|
|
American elm at New Willard [Hotel] |
Image |
1910-10-17 |
|
|
American elm at New Willard [Hotel] |
Image |
1910-10-17 |
|
|
American elm at New Willard [Hotel] |
Image |
1910-10-17 |
|
|
An ant highway |
Image |
1920-03-27 |
|
|
An old door |
Image |
1920-04-05 |
|
|
An old tree |
Image |
1920-04-08 |
|
|
Anarcardium occidentale |
Image |
1919-10-25 |
|
|
Andropogen scoparius, Andropogon hallii |
Image |
1916-10-07 |
|
|
Andropogen scoparius, Andropogon hallii |
Image |
1916-10-07 |
|
|
Andropogen scoparius, Andropogon hallii |
Image |
1916-10-07 |
|
|
Andropogon |
Image |
1917-11-28 |
|
|
Andropogon |
Image |
1920-03-28 |
|
|
Andropogon |
Image |
1920-03-28 |
|
|
Andropogon and trees |
Image |
1920-03-28 |
|
|
Andropogon Hallii |
Image |
1911-09-13 |
|
|
Andropogon hallii, etc. |
Image |
1914-07-17 |
|
|
Andropogon only where favored, and in succession stages |
Image |
1940-06-15 |
|
|
Andropogon only where favored, and in succession stages |
Image |
1940-06-15 |
|
|
Andropogon only where favored, and in succession stages |
Image |
1940-06-15 |
|
|
Andropogon only where favored, and in succession stages, Dup. P-7-1908 |
Image |
1940-06-15 |
|
|
Andropogon overgrown gun mounting |
Image |
1920-03-27 |
|
|
Andropogon scoparius, Andropogon hallii |
Image |
1916-10-07 |
|
|
Andropogon veg., Erigeron |
Image |
1917-01-14 |
|
|
Annona with ants nest |
Image |
1919-10-18 |
|
|
Annual salicornia |
Image |
1912-08-06 |
|
|
Anogra Sand Creek |
Image |
1915-08-16 |
|
|
Anogra, Sporobolus airoides |
Image |
1926-06-08 |
|
|
Ant Hill |
Image |
1916-07-22 |
|
|
Ant Hill |
Image |
1916-07-22 |
|
|
Ant hill |
Image |
1919-11-20 |
|
|
Ant hill |
Image |
1925-09-21 |
|
|
Ant hill, huts |
Image |
1920-02-09 |
|
|
Antennaria |
Image |
1929-06-28 |
|
|
Antennaria, Bouteloua gracilis, Oak |
Image |
1918-07-25 |
|
|
Antennaria, Grama, Yellow Pine |
Image |
1918-07-25 |
|
|
Antennaria, Grama, Yellow Pine |
Image |
1918-07-25 |
|
|
Apache hogan |
Image |
1932-06-05 |
|
|
Apache Indian hogan |
Image |
1932-06-05 |
|
|
Apache Indian hogan |
Image |
1932-06-05 |
|
|
Apache Indians |
Image |
1932-06-05 |
|
|
Apache Indians |
Image |
1932-06-05 |
|
|
Apache teepee, soil alkali |
Image |
1921-06-03 |
|
|
Apple |
Image |
1912-08-22 |
|
Available
Not available
Not local
Unknown
