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Results for "Smithsonian Astrophysical Observatory. Project Celescope"
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Subject: Secretaries
Subject: South Yard
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Tolman, Ruel P (Ruel Pardee) 1878-1954 (7)
Unknown (3)
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Buckler, James R (1)
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Showing results 13 - 13 of 13 for
Smithsonian Astrophysical Observatory. Project Celescope
Secretary Charles G. Abbot Reading the Pyrheliometer
Date:
c. 1940
Showing results 13 - 13 of 13 for
Smithsonian Astrophysical Observatory. Project Celescope
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