Results for "Washington (D.C.)"
Secretary Charles G. Abbot
- Date: 1897
- Creator: Unknown
- Creator: Unknown
Secretary Charles G. Abbot's Old House
- Creator: Unknown
- Creator: Unknown
W. S. Adams, Director of Mount Wilson Observatory
- Date: c. 1940?
- Creator: Unknown
- Creator: Unknown
Secretary Charles Greeley Abbot
- Date: 1890s
- Creator: Unknown
- Creator: Unknown
Charles Greeley Abbot at Age Eleven
- Date: 1883
- Creator: Unknown
- Creator: Unknown
Secretary Abbot with Solar Equipment
- Creator: Unknown
- Creator: Unknown
Dr. Charles G. Abbot with Harmonic Print-out
- Date: 1973
- Creator: Unknown
- Creator: Unknown
Patent Drawing for Abbot's Pyrheliometer
- Date: 1940?
- Creator: Unknown
- Creator: Unknown
Abbot at Table Mountain, California
- Date: c 1925
- Creator: Unknown
- Creator: Unknown
Secretary Charles G. Abbot Playing Tennis
- Creator: Unknown
- Creator: Unknown
Secretary Abbot with Printouts
- Date: c. 1968
- Creator: Unknown
- Creator: Unknown
Secretaries Carmichael, Abbot & Ripley
- Date: This picture is post-1964
- Creator: Unknown
- Creator: Unknown
