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  <leader>05225cpcaa2200853   4500</leader>
  <controlfield tag="001">mm 78012229 </controlfield>
  <controlfield tag="003">DLC</controlfield>
  <controlfield tag="005">20260227111621.0</controlfield>
  <controlfield tag="007">cr |||||||||||</controlfield>
  <controlfield tag="008">781030||||||||||||                 eng  </controlfield>
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    <subfield code="a">mm 78012229 </subfield>
    <subfield code="b">ms 60000024 </subfield>
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    <subfield code="a">DLC</subfield>
    <subfield code="e">dacs</subfield>
    <subfield code="c">DLC</subfield>
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    <subfield code="a">eng</subfield>
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    <subfield code="2">lcmd</subfield>
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  <datafield tag="100" ind1="1" ind2=" ">
    <subfield code="a">Becker, George F.</subfield>
    <subfield code="q">(George Ferdinand),</subfield>
    <subfield code="d">1847-1919.</subfield>
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  <datafield tag="245" ind1="0" ind2="0">
    <subfield code="a">George F. Becker papers,</subfield>
    <subfield code="f">1814-1928.</subfield>
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  <datafield tag="300" ind1=" " ind2=" ">
    <subfield code="a">9,900</subfield>
    <subfield code="f">items.</subfield>
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    <subfield code="a">36</subfield>
    <subfield code="f">containers plus</subfield>
    <subfield code="a">1</subfield>
    <subfield code="f">oversize.</subfield>
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  <datafield tag="300" ind1=" " ind2=" ">
    <subfield code="a">14.5</subfield>
    <subfield code="f">linear feet.</subfield>
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  <datafield tag="351" ind1=" " ind2=" ">
    <subfield code="a">Arranged in 8 series.  Series 1: Family Correspondence, 1814-1919; Series 2: General Correspondence, 1857-1928; Series 3: Letterbooks, 1872-1887; Series 4: Subject File, circa 1852-circa 1905; Series 5: Biographical File, 1824-1919; Series 6: Blueprints, Maps, and Sketches, 1839-1912; Series 7: Addition, 1902; and Series 8: Oversize, 1841-1914.</subfield>
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  <datafield tag="506" ind1="0" ind2=" ">
    <subfield code="a">Open to research.</subfield>
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  <datafield tag="520" ind1="8" ind2=" ">
    <subfield code="a">Correspondence, memoranda, letterbooks, diaries, notes, notebooks, reports, articles, charts, tables, blueprints, maps, landscape sketches, memorabilia, printed matter, and other papers relating primarily to Becker's service as geologist-in-charge, U.S. Geological Survey.  Documents his geological investigations in Nevada, southern Alaska, South Africa, the Pacific slope, and the Philippines.  Also documents his service as geophysicist of the Carnegie Institution of Washington, 1898; U.S. representative at the Radioactivity Congress in Brussels, Belgium, in 1910; and president of the Geological Society of America, 1914.  Correspondents include Andreas Arzruni, James Franklin Bell, Theodore E. Burton, William Crozier, Edward Salisbury Dana, James Dwight Dana, Samuel Franklin Emmons, Archibald Geikie, A. Hague, Eugene W. Hilgard, Edmund Otis Hovey, Henry Marion Howe, Louis Janin, Waldemar Lindgren, Charles Washington Merrill, Simon Newcomb, Charles S. Peirce, Chester W. Purington, Theodore Roosevelt, H.W. Turner, Charles D. Walcott, and Robert Simpson Woodward.</subfield>
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  <datafield tag="544" ind1=" " ind2=" ">
    <subfield code="3">Photographs and photograph albums</subfield>
    <subfield code="e">transferred to</subfield>
    <subfield code="a">Library of Congress Prints and Photographs Division.</subfield>
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  <datafield tag="545" ind1="0" ind2=" ">
    <subfield code="a">Geologist, mathematician, engineer, and physicist.</subfield>
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  <datafield tag="546" ind1=" " ind2=" ">
    <subfield code="a">Collection material in English, with Spanish and German.</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.ms009321</subfield>
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  <datafield tag="600" ind1="1" ind2="0">
    <subfield code="a">Arzruni, Andreas,</subfield>
    <subfield code="d">1847-1898</subfield>
    <subfield code="v">Correspondence.</subfield>
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  <datafield tag="600" ind1="1" ind2="0">
    <subfield code="a">Bell, James Franklin,</subfield>
    <subfield code="d">1856-1919</subfield>
    <subfield code="v">Correspondence.</subfield>
  </datafield>
  <datafield tag="600" ind1="1" ind2="0">
    <subfield code="a">Burton, Theodore E.</subfield>
    <subfield code="q">(Theodore Elijah),</subfield>
    <subfield code="d">1851-1929</subfield>
    <subfield code="v">Correspondence.</subfield>
  </datafield>
  <datafield tag="600" ind1="1" ind2="0">
    <subfield code="a">Crozier, William,</subfield>
    <subfield code="d">1855-1942</subfield>
    <subfield code="v">Correspondence.</subfield>
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  <datafield tag="600" ind1="1" ind2="0">
    <subfield code="a">Dana, Edward Salisbury,</subfield>
    <subfield code="d">1849-1935</subfield>
    <subfield code="v">Correspondence.</subfield>
  </datafield>
  <datafield tag="600" ind1="1" ind2="0">
    <subfield code="a">Dana, James Dwight,</subfield>
    <subfield code="d">1813-1895</subfield>
    <subfield code="v">Correspondence.</subfield>
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  <datafield tag="600" ind1="1" ind2="0">
    <subfield code="a">Emmons, Samuel Franklin,</subfield>
    <subfield code="d">1841-1911</subfield>
    <subfield code="v">Correspondence.</subfield>
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  <datafield tag="600" ind1="1" ind2="0">
    <subfield code="a">Geikie, Archibald,</subfield>
    <subfield code="d">1835-1924</subfield>
    <subfield code="v">Correspondence.</subfield>
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  <datafield tag="600" ind1="1" ind2="0">
    <subfield code="a">Hague, A.</subfield>
    <subfield code="q">(Arnold),</subfield>
    <subfield code="d">1840-1917</subfield>
    <subfield code="v">Correspondence.</subfield>
  </datafield>
  <datafield tag="600" ind1="1" ind2="0">
    <subfield code="a">Hilgard, Eugene W.</subfield>
    <subfield code="q">(Eugene Woldemar),</subfield>
    <subfield code="d">1833-1916</subfield>
    <subfield code="v">Correspondence.</subfield>
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  <datafield tag="600" ind1="1" ind2="0">
    <subfield code="a">Hovey, Edmund Otis,</subfield>
    <subfield code="d">1862-1924</subfield>
    <subfield code="v">Correspondence.</subfield>
  </datafield>
  <datafield tag="600" ind1="1" ind2="0">
    <subfield code="a">Howe, Henry Marion,</subfield>
    <subfield code="d">1848-1922</subfield>
    <subfield code="v">Correspondence.</subfield>
  </datafield>
  <datafield tag="600" ind1="1" ind2="0">
    <subfield code="a">Janin, Louis,</subfield>
    <subfield code="d">1837-1914</subfield>
    <subfield code="v">Correspondence.</subfield>
  </datafield>
  <datafield tag="600" ind1="1" ind2="0">
    <subfield code="a">Lindgren, Waldemar,</subfield>
    <subfield code="d">1860-1939</subfield>
    <subfield code="v">Correspondence.</subfield>
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  <datafield tag="600" ind1="1" ind2="0">
    <subfield code="a">Merrill, Charles Washington,</subfield>
    <subfield code="d">1869-1956</subfield>
    <subfield code="v">Correspondence.</subfield>
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  <datafield tag="600" ind1="1" ind2="0">
    <subfield code="a">Newcomb, Simon,</subfield>
    <subfield code="d">1835-1909</subfield>
    <subfield code="v">Correspondence.</subfield>
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  <datafield tag="600" ind1="1" ind2="0">
    <subfield code="a">Peirce, Charles S.</subfield>
    <subfield code="q">(Charles Sanders),</subfield>
    <subfield code="d">1839-1914</subfield>
    <subfield code="v">Correspondence.</subfield>
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  <datafield tag="600" ind1="1" ind2="0">
    <subfield code="a">Purington, Chester Wells,</subfield>
    <subfield code="d">1871-</subfield>
    <subfield code="v">Correspondence.</subfield>
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  <datafield tag="600" ind1="1" ind2="0">
    <subfield code="a">Roosevelt, Theodore,</subfield>
    <subfield code="d">1858-1919</subfield>
    <subfield code="v">Correspondence.</subfield>
  </datafield>
  <datafield tag="600" ind1="1" ind2="0">
    <subfield code="a">Turner, H. W.</subfield>
    <subfield code="q">(Henry Ward),</subfield>
    <subfield code="d">1857-</subfield>
    <subfield code="v">Correspondence.</subfield>
  </datafield>
  <datafield tag="600" ind1="1" ind2="0">
    <subfield code="a">Walcott, Charles D.</subfield>
    <subfield code="q">(Charles Doolittle),</subfield>
    <subfield code="d">1850-1927</subfield>
    <subfield code="v">Correspondence.</subfield>
  </datafield>
  <datafield tag="600" ind1="1" ind2="0">
    <subfield code="a">Woodward, Robert Simpson,</subfield>
    <subfield code="d">1849-1924</subfield>
    <subfield code="v">Correspondence.</subfield>
  </datafield>
  <datafield tag="600" ind1="3" ind2="0">
    <subfield code="a">Becker family.</subfield>
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  <datafield tag="610" ind1="2" ind2="0">
    <subfield code="a">Carnegie Institution of Washington.</subfield>
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  <datafield tag="610" ind1="2" ind2="0">
    <subfield code="a">Geological Society of America.</subfield>
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  <datafield tag="610" ind1="2" ind2="0">
    <subfield code="a">Geological Survey (U.S.)</subfield>
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  <datafield tag="611" ind1="2" ind2="0">
    <subfield code="a">Radioactivity Congress</subfield>
    <subfield code="d">(1910 :</subfield>
    <subfield code="c">Brussels, Belgium)</subfield>
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  <datafield tag="650" ind1=" " ind2="0">
    <subfield code="a">Geology</subfield>
    <subfield code="z">Alaska.</subfield>
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  <datafield tag="650" ind1=" " ind2="0">
    <subfield code="a">Geology</subfield>
    <subfield code="z">Nevada.</subfield>
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  <datafield tag="650" ind1=" " ind2="0">
    <subfield code="a">Geology</subfield>
    <subfield code="z">North America.</subfield>
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    <subfield code="a">Geology</subfield>
    <subfield code="z">Pacific Coast (America)</subfield>
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  <datafield tag="650" ind1=" " ind2="0">
    <subfield code="a">Geology</subfield>
    <subfield code="z">Philippines.</subfield>
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  <datafield tag="650" ind1=" " ind2="0">
    <subfield code="a">Geology</subfield>
    <subfield code="z">South Africa.</subfield>
  </datafield>
  <datafield tag="650" ind1=" " ind2="0">
    <subfield code="a">Geology</subfield>
    <subfield code="z">United States.</subfield>
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    <subfield code="a">Geology</subfield>
    <subfield code="z">United States</subfield>
    <subfield code="x">Societies, etc.</subfield>
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  <datafield tag="650" ind1=" " ind2="0">
    <subfield code="a">Geophysics.</subfield>
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    <subfield code="a">Radioactivity</subfield>
    <subfield code="x">Congresses.</subfield>
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    <subfield code="a">Geologists.</subfield>
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    <subfield code="a">Mathematicians.</subfield>
    <subfield code="2">itoamc</subfield>
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  <datafield tag="656" ind1=" " ind2="7">
    <subfield code="a">Physicists.</subfield>
    <subfield code="2">itoamc</subfield>
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  <datafield tag="656" ind1=" " ind2="7">
    <subfield code="a">Scientists.</subfield>
    <subfield code="2">itoamc</subfield>
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    <subfield code="3">Finding aid</subfield>
    <subfield code="u">http://hdl.loc.gov/loc.mss/eadmss.ms009321</subfield>
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  <datafield tag="856" ind1="4" ind2=" ">
    <subfield code="3">Finding aid (PDF)</subfield>
    <subfield code="u">http://hdl.loc.gov/loc.mss/eadmss.ms009321.3</subfield>
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    <subfield code="c">39736</subfield>
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