Additional Formats
NATIONAL GEOGRAPHIC SOCIETY [23]
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NATIONAL GEOGRAPHIC SOCIETY [35]
Additional Formats
[Corresp: Thomas W. McKnew; AGWilson; John O. LaGorce; Lyman J. Briggs; George O. Abell; Gilbert Grosvenor; Melville Bell Grosvenor; Windsor Booth; William C. Miller; RBGilmore; RLMinkowski; John H. Mee Photographs; Hale-Humphreys; Duplicate Photo Services. Concerns Sky Survey.]
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NATIONAL GEOGRAPHIC SOCIETY [26]
Additional Formats
[Re Sky Survey. Corresp: Thomas W. McKnew; George O. Abell; Rudolph Minkowski; Melvin M. Payne; R. B. Gilmore; Frederick G. Vosburgh; John Oliver LaGorce]
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NATIONAL GEOGRAPHIC SOCIETY [8]
Additional Formats
[Correesp: GWGreen; TWMcKnew; LJBriggs; RBGilmore; AGWilson]
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CALIFORNIA INSTITUTE OF TECHNOLOGY [3]
Additional Formats
[incl. fold Observatory Council minutes. c.memo ECWatson to LAD; c.ltr LAD to AGWilson]
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NATIONAL GEOGRAPHIC SOCIETY [8]
Additional Formats
[Corresp: Albert G. Wilson; LAD; RBGilmore]
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NATIONAL GEOGRAPHIC SOCIETY [13]
Additional Formats
[Corresp: DOHendrix; EPHubble; Thomas W. McKnew; V.Bush; LAD; GHHall; folded]
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