Results for "Observatories"
Louisiana Purchase Exposition, St. Louis, Missouri, 1904
- Date: 1904
- Creator: United States National Museum Photographic Laboratory
Samuel P. Langley
- Creator: Unknown
- Creator: Unknown
Secretary Samuel P. Langley
- Date: c. 1895
- Creator: Unknown
- Creator: Unknown
Smithsonian Centennial Exhibit, Natural History Building
- Date: 1946 August-September 1946
- Creator: United States National Museum Photographic Laboratory
Smithsonian Centennial Exhibit, Natural History Building
- Date: 1946 August-September 1946
- Creator: United States National Museum Photographic Laboratory
Langley's Aerodrome Shop, South Shed
- Date: 1900
- Creator: Unknown
- Creator: Unknown
Alexander Dallas Bache Urges Joseph Henry to Become Smithsonian's First Secretary
- Date: December 4, 1846
Luncheon for Dr. Fred Lawrence Whipple
- Date: 1972 April 28, 1972
- Creator: Hofmeister, Richard K
Science Service radio broadcast, December 1941
- Date: 1941
- Creator: Davis, Watson 1896-1967
Hodgkins Medal
- Date: 1920
- Creator: Unknown
- Creator: Unknown
Luncheon for Dr. Fred Lawrence Whipple
- Date: 1972 April 28, 1972
- Creator: Hofmeister, Richard K
Secretary Samuel P. Langley
- Date: 1901
- Creator: Unknown
- Creator: Unknown
