Manuscripts
Western Union
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International Astronomical Union
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53 leaves/pieces and 2 printed items (20 ad 3 pages).
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International Astronomical Union
Manuscripts
20 leaves/pieces and 6 printed items (between 2-4 pages). Correspondents: Dugan, Raymond S. Hellweg, Capt. J. F. - U.S. Naval Observatory
mssAdams papers
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International Astronomical Union
Manuscripts
35 leaves/pieces and 5 printed items (between 2-4 pages). Correspondents: Aitken, Robert G. - Lick Observatory Dugan, Raymond S. (2 holograph) Leuschner, A. O. - University of California, Berkeley Mason, Max - Rockefeller Foundation, New York Stratton, F. J. M. Wright, W. H.
mssAdams papers