Results for "Smithsonian Institution. Environmental Sciences Program"
Elephant House, National Zoo
- Date: 1903
- Creator: Unknown
- Creator: Unknown
Secretary Samuel P. Langley
- Date: 1901
- Creator: Unknown
- Creator: Unknown
Easter Monday at the National Zoo
- Date: c. 1900s
- Creator: Unknown
- Creator: Unknown
Easter Monday at the National Zoo
- Date: early 1900s
- Creator: Unknown
- Creator: Unknown
William and Lucy Mann in Liberia
- Date: 1940
- Creator: Unknown
- Creator: Unknown
Baby Male Gorilla at the National Zoo
- Date: c. 1960s
- Creator: Unknown
- Creator: Unknown
Thylacines (Tasmanian Wolves) at the National Zoo
- Date: c. 1903
- Creator: Unknown
- Creator: Unknown
Visitors to the Zoo Relax by Rock Creek
- Date: c. 1891
- Creator: Unknown
- Creator: Unknown
Holt House Property, National Zoo
- Date: 1889
- Creator: Unknown
- Creator: Unknown
Future Home of the National Zoological Park
- Date: c. 1890
- Creator: Unknown
- Creator: Unknown
Future Home of the National Zoological Park
- Date: c. 1890
- Creator: Unknown
- Creator: Unknown
Holt House Property, National Zoo
- Date: 1889
- Creator: Unknown
- Creator: Unknown
