NATIONAL GEOGRAPHIC SOCIETY [12]

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  NATIONAL GEOGRAPHIC SOCIETY [35]

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  [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]

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  [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 [26]

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  [Re Sky Survey. Corresp: George O. Abell; Thomas W. McKnew; Gilbert Grosvenor; F. Barrows Colton; John M. Kaufmann; ltrs announcing availability of Sky Survey sent to editors of astronomical journals]

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  NATIONAL GEOGRAPHIC SOCIETY [23]

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  [Corresp: AGwilson; TWMcKnew; ECWatson; LAD; William A. Kinney; GWGreen; John O. LaGorce; A. H. Walter; Lyman J. Briggs]

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  NATIONAL GEOGRAPHIC SOCIETY [10]

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  [Corresp: Raymond C. Tompos {US Dept Commerce}; Thomas W. McKnew; Paul Sampson; Kenneth F. Weaver; Andrew Poggenpohl; Kaj Aage Strand]

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  NATIONAL GEOGRAPHIC SOCIETY [2]

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  [Corresp: Edward S. Cornish]

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