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Close Browse records and papers documenting the history and research of major Smithsonian divisions. Pre-set filters help narrow searches by museum or research center.Expeditions Information
Close Browse records and papers documenting scientific and collecting expeditions either affiliated with the Smithsonian, or with which Smithsonian researchers participated. Pre-set filters help narrow searches by geographic regions predominantly represented in expedition records.Smithsonian Secretaries Information
Close Browse records and papers of the Smithsonian Secretaries, from 1846 until today. Pre-set filters help narrow searches by individuals who have held that office.Did you find what you were looking for? A gift to the Archives will help us make more of our collections accessible!Donate Now

- Local Number:
- dougmink1
- Creator:
- Dorwin, Harold
- Title:
- Oakridge Observatory
- Date:
- October 16, 2004
- Physical Description:
- Event
- Link:
- View Full Record

- Local Number:
- 85-1047
- Creator:
- Unknown
- Title:
- Mt. Harquahala, Arizona
- Physical Description:
- Photographic print, Exterior
- Link:
- View Full Record

- Local Number:
- 94-12604
- Creator:
- Unknown
- Title:
- Secretary Abbot Carrying the Radiometer up Mount Wilson
- Date:
- c. 1930?
- Physical Description:
- Photographic print, Person, candid
- Link:
- View Full Record
![One of the Instruments Used to Determine Sunlight Intensity and Sky Brightness, 1930, Smithsonian Institution Archives, SIA Acc. 12-492 [SIA2012-6494]. One of the Instruments Used to Determine Sunlight Intensity and Sky Brightness](https://ids.si.edu/ids/iiif/SIA-SIA2012-6494/full/125,/0/default.jpg)
- Title:
- One of the Instruments Used to Determine Sunlight Intensity and Sky Brightness
- Dates:
- 1930, Between 1930 and 1934
- Physical Description:
- 4 x 3.25;
- Link:
- View Full Record
![Laboratory of the Division of Radiation and Organisms, 1929, Smithsonian Institution Archives, SIA Acc. 12-492 [SIA2012-6465]. Laboratory of the Division of Radiation and Organisms](https://ids.si.edu/ids/iiif/SIA-SIA2012-6465/full/125,/0/default.jpg)
- Title:
- Laboratory of the Division of Radiation and Organisms
- Dates:
- 1929, Between 1929 and 1934
- Physical Description:
- 4 x 3.25;
- Link:
- View Full Record
!["Man and Cosmos" Lecture by Dr. Fred L. Whipple, 1972, Smithsonian Institution Archives, SIA Acc. 11-009 [72-10517]. "Man and Cosmos" Lecture by Dr. Fred L. Whipple](https://ids.si.edu/ids/iiif/SIA-72-10517/full/125,/0/default.jpg)
- Creator:
- Hofmeister, Richard K
- Title:
- "Man and Cosmos" Lecture by Dr. Fred L. Whipple
- Dates:
- 1972, November 15, 1972
- Physical Description:
- 35mm;
- Link:
- View Full Record
![Solar Cooker at Mt. Wilson, California, Cooks Food by Sun Heat, 1920, Smithsonian Institution Archives, SIA Acc. 12-492 [SIA2012-6503]. Solar Cooker at Mt. Wilson, California, Cooks Food by Sun Heat](https://ids.si.edu/ids/iiif/SIA-SIA2012-6503/full/125,/0/default.jpg)
- Title:
- Solar Cooker at Mt. Wilson, California, Cooks Food by Sun Heat
- Dates:
- 1920, Between 1920 and 1934
- Physical Description:
- 4 x 3.25;
- Link:
- View Full Record
![Astrophysical Observatory and Smithsonian Institution Building, 1909, Smithsonian Institution Archives, SIA RU000371 [SA-756]. Astrophysical Observatory and Smithsonian Institution Building](https://ids.si.edu/ids/iiif/SIA-SA-756/full/125,/0/default.jpg)
- Creator:
- Unknown
- Title:
- Astrophysical Observatory and Smithsonian Institution Building
- Date:
- 1909
- Physical Description:
- 8 x 10;
- Link:
- View Full Record

- Local Number:
- SIA2011-0726 and 94-2869
- Creator:
- Williams, J. T
- Title:
- Multiple-Mirror Telescope
- Date:
- c. 1977
- Physical Description:
- Photographic print, Exterior
- Link:
- View Full Record

- Local Number:
- 34425 or MAH-34425
- Creator:
- Unknown
- Title:
- Dr. Earl S. Johnston
- Date:
- 1936
- Physical Description:
- Photographic print, Person, candid
- Link:
- View Full Record