Results for "Observatories"
Smithsonian Astrophysical Observatory Employees
- Date: 1930-1940?
- Creator: Unknown
- Creator: Unknown
- SI History Bibliography
Personalities of the Observatory
- Date: 1941-1942
- Creator: Wagman, N. E
- Creator: Wagman, N. E
Tennis Courts Behind SI Building
- Date: 1920
- Creator: Unknown
- Creator: Unknown
Keetmanshoop, Southwest Africa
- Date: c. 1925
- Creator: Abbot, C. G (Charles Greeley) b. 1872
- Creator: Abbot, C. G (Charles Greeley) b. 1872
Secretary Charles G. Abbot Playing Tennis
- Creator: Unknown
- Creator: Unknown
Secretary Abbot Carrying the Radiometer up Mount Wilson
- Date: c. 1930?
- Creator: Unknown
- Creator: Unknown
Sumatra Eclipse Expedition
- Date: 1901
- Creator: Unknown
- Creator: Unknown
- SI History Chronology
Abbot Tests Solar Steam Boiler
- Date: September 30, 1936
Patent Drawing for Abbot's Pyrheliometer
- Date: 1940?
- Creator: Unknown
- Creator: Unknown
SAO Staff, 1941
- Date: 1941
- Creator: Johnston, Earl S
- Creator: Johnston, Earl S
News Broadcast of Secretary Abbot's Solar Invention
- Date: c. September 30, 1936
- Creator: Tolman, Ruel P (Ruel Pardee) 1878-1954
- Creator: Tolman, Ruel P (Ruel Pardee) 1878-1954
- SI History Bibliography
Sketch of Professor S. P. Langley
- Date: 1885
- Creator: Holden, Edward Singleton
- Creator: Holden, Edward Singleton
