Results for "Smithsonian Institution. Environmental Sciences Program"
Trees and Flowers in Washington, DC, with the Old Post Office and Clock Tower in the background
- Date: 1919 C. 1920-1924
- Creator: Gruber, Martin A
Tree in front of the United States National Museum (now the National Museum of Natural History)
- Date: 1919 C. 1920-1924
- Creator: Gruber, Martin A
Cherry Blossoms around the Tidal Basin, with the Bureau of Engraving and Printing in the background
- Date: 1919 C. 1920-1924
- Creator: Gruber, Martin A
Forest of Mississippi Valley (Record Photo), 1881 - No. 22 -- Sycamore
- Date: 1875 Circa 1881
- Creator: Ridgway, Robert 1850-1929
Forest of Mississippi Valley (Record Photo), 1881 - No. 33 -- An old "clearing"
- Date: 1875 Circa 1881
- Creator: Ridgway, Robert 1850-1929
Forest of Mississippi Valley (Record Photo), 1881 - No. 35 -- Switch Cane
- Date: 1875 Circa 1881
- Creator: Ridgway, Robert 1850-1929
Forest of Mississippi Valley (Record Photo), 1881 - No. 32 -- Sycamore
- Date: 1875 Circa 1881
- Creator: Ridgway, Robert 1850-1929
Forest of Mississippi Valley (Record Photo), 1881 - No. 38 -- Crossvine
- Date: 1875 Circa 1881
- Creator: Ridgway, Robert 1850-1929
Forest of Mississippi Valley (Record Photo), 1881 - No. 36 -- Undergrowth
- Date: 1875 Circa 1881
- Creator: Ridgway, Robert 1850-1929
Forest of Mississippi Valley (Record Photo), 1881 - No. 18 -- Sycamore
- Date: 1875 Circa 1881
- Creator: Ridgway, Robert 1850-1929
Forest of Mississippi Valley (Record Photo), 1881 - No. 19 -- Sycamore
- Date: 1875 Circa 1881
- Creator: Ridgway, Robert 1850-1929
Forest of Mississippi Valley (Record Photo), 1881 - No. 24 -- Sycamore
- Date: 1875 Circa 1881
- Creator: Ridgway, Robert 1850-1929
