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  <leader>02800cpcaa2200517 a 4500</leader>
  <controlfield tag="001">mm 73024505 </controlfield>
  <controlfield tag="003">DLC</controlfield>
  <controlfield tag="005">20260227111614.0</controlfield>
  <controlfield tag="007">cr |||||||||||</controlfield>
  <controlfield tag="008">730620||||||||||||                 eng  </controlfield>
  <datafield tag="010" ind1=" " ind2=" ">
    <subfield code="a">mm 73024505 </subfield>
    <subfield code="b">ms 72001723 </subfield>
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  <datafield tag="040" ind1=" " ind2=" ">
    <subfield code="a">DLC</subfield>
    <subfield code="e">dacs</subfield>
    <subfield code="c">DLC</subfield>
    <subfield code="d">DLC</subfield>
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  <datafield tag="072" ind1=" " ind2="7">
    <subfield code="a">S</subfield>
    <subfield code="2">lcmd</subfield>
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  <datafield tag="100" ind1="1" ind2=" ">
    <subfield code="a">Hall, Asaph,</subfield>
    <subfield code="d">1829-1907.</subfield>
  </datafield>
  <datafield tag="245" ind1="0" ind2="0">
    <subfield code="a">Asaph Hall papers,</subfield>
    <subfield code="f">1837-1983</subfield>
    <subfield code="g">(bulk 1860-1920).</subfield>
  </datafield>
  <datafield tag="300" ind1=" " ind2=" ">
    <subfield code="a">1,000</subfield>
    <subfield code="f">items.</subfield>
  </datafield>
  <datafield tag="300" ind1=" " ind2=" ">
    <subfield code="a">7</subfield>
    <subfield code="f">containers plus</subfield>
    <subfield code="a">1</subfield>
    <subfield code="f">oversize.</subfield>
  </datafield>
  <datafield tag="300" ind1=" " ind2=" ">
    <subfield code="a">3.8</subfield>
    <subfield code="f">linear feet.</subfield>
  </datafield>
  <datafield tag="506" ind1="0" ind2=" ">
    <subfield code="a">Open to research.</subfield>
  </datafield>
  <datafield tag="506" ind1=" " ind2=" ">
    <subfield code="a">Restrictions may apply to unprocessed material.</subfield>
  </datafield>
  <datafield tag="520" ind1="8" ind2=" ">
    <subfield code="a">Correspondence, diaries, journals, speeches, writings, scientific notebooks, biographical material, family papers, printed matter, photographs, and other papers relating to astronomers Asaph Hall (1829-1907) and his son, Asaph Hall (1859-1930).  Documents the career of Asaph Hall (1829-1907) at the United States Naval Observatory, Washington, D.C. and to his discovery of the moons of Mars.  Correspondents include Alexander Graham Bell, Alvan Clark, Benjamin A. Gould, Asaph Hall (1800-1842 or 3), Chloe Angeline Stickney Hall, and Mary Estella Hall, Othniel C. March, and Hermann Struve.</subfield>
  </datafield>
  <datafield tag="544" ind1=" " ind2=" ">
    <subfield code="3">Some photographs and slides</subfield>
    <subfield code="e">transferred to</subfield>
    <subfield code="a">Library of Congress Prints and Photographs Division.</subfield>
  </datafield>
  <datafield tag="545" ind1="0" ind2=" ">
    <subfield code="a">Astronomer and educator.</subfield>
  </datafield>
  <datafield tag="546" ind1=" " ind2=" ">
    <subfield code="a">Collection material in English.</subfield>
  </datafield>
  <datafield tag="555" ind1="8" ind2=" ">
    <subfield code="a">Finding aid available in the Library of Congress Manuscript Reading Room and at</subfield>
    <subfield code="u">http://hdl.loc.gov/loc.mss/eadmss.ms008080</subfield>
  </datafield>
  <datafield tag="600" ind1="1" ind2="0">
    <subfield code="a">Bell, Alexander Graham,</subfield>
    <subfield code="d">1847-1922</subfield>
    <subfield code="v">Correspondence.</subfield>
  </datafield>
  <datafield tag="600" ind1="1" ind2="0">
    <subfield code="a">Clark, Alvan,</subfield>
    <subfield code="d">1804-1887</subfield>
    <subfield code="v">Correspondence.</subfield>
  </datafield>
  <datafield tag="600" ind1="1" ind2="0">
    <subfield code="a">Gould, Benjamin Apthorp,</subfield>
    <subfield code="d">1824-1896</subfield>
    <subfield code="v">Correspondence.</subfield>
  </datafield>
  <datafield tag="600" ind1="1" ind2="0">
    <subfield code="a">Hall, Asaph,</subfield>
    <subfield code="d">1800-1842 or 1843</subfield>
    <subfield code="v">Correspondence.</subfield>
  </datafield>
  <datafield tag="600" ind1="1" ind2="0">
    <subfield code="a">Hall, Chloe Angeline Stickney,</subfield>
    <subfield code="d">-1892</subfield>
    <subfield code="v">Correspondence.</subfield>
  </datafield>
  <datafield tag="600" ind1="1" ind2="0">
    <subfield code="a">Hall, Mary Estella Cockrell</subfield>
    <subfield code="v">Correspondence.</subfield>
  </datafield>
  <datafield tag="600" ind1="1" ind2="0">
    <subfield code="a">Marsh, Othniel Charles,</subfield>
    <subfield code="d">1831-1899</subfield>
    <subfield code="v">Correspondence.</subfield>
  </datafield>
  <datafield tag="600" ind1="1" ind2="0">
    <subfield code="a">Struve, Hermann,</subfield>
    <subfield code="d">1854-1920</subfield>
    <subfield code="v">Correspondence.</subfield>
  </datafield>
  <datafield tag="600" ind1="3" ind2="0">
    <subfield code="a">Hall family.</subfield>
  </datafield>
  <datafield tag="610" ind1="2" ind2="0">
    <subfield code="a">United States Naval Observatory.</subfield>
  </datafield>
  <datafield tag="650" ind1=" " ind2="0">
    <subfield code="a">Astronomical observatories</subfield>
    <subfield code="z">Washington (D.C.)</subfield>
  </datafield>
  <datafield tag="650" ind1=" " ind2="0">
    <subfield code="a">Astronomy.</subfield>
  </datafield>
  <datafield tag="651" ind1=" " ind2="0">
    <subfield code="a">Mars (Planet)</subfield>
    <subfield code="x">Satellites.</subfield>
  </datafield>
  <datafield tag="656" ind1=" " ind2="7">
    <subfield code="a">Astronomers.</subfield>
    <subfield code="2">itoamc</subfield>
  </datafield>
  <datafield tag="656" ind1=" " ind2="7">
    <subfield code="a">Educators.</subfield>
    <subfield code="2">itoamc</subfield>
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  <datafield tag="700" ind1="1" ind2=" ">
    <subfield code="a">Hall, Asaph,</subfield>
    <subfield code="d">1859-1930.</subfield>
    <subfield code="t">Asaph Hall papers.</subfield>
  </datafield>
  <datafield tag="856" ind1="4" ind2=" ">
    <subfield code="3">Finding aid</subfield>
    <subfield code="u">http://hdl.loc.gov/loc.mss/eadmss.ms008080</subfield>
  </datafield>
  <datafield tag="856" ind1="4" ind2=" ">
    <subfield code="3">Finding aid (PDF)</subfield>
    <subfield code="u">http://hdl.loc.gov/loc.mss/eadmss.ms008080.3</subfield>
  </datafield>
  <datafield tag="999" ind1=" " ind2=" ">
    <subfield code="c">39248</subfield>
    <subfield code="d">39248</subfield>
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