Notes and drawings from Percival Lowell's papers
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This collection highlights the lives and careers of brothers and Lowell Observatory astronomers V.M. and E.C. Slipher.
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This is a collection of Lowell Observatory's newsletter, The Lowell Observer. Issues from Summer 2011-present are available at…
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Papers and correspondence of Lowell Observatory astronomer V. M. Slipher.
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